Saturday, December 18, 2010

KEAX [190227]: Preliminary Local Storm Report

NWUS53 KEAX 190227
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
826 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0825 PM SNOW TROY 39.79N 95.09W
12/18/2010 E0.5 INCH DONIPHAN KS LAW ENFORCEMENT

ESTIMATED AROUND A HALF INCH OF SNOW ON THE GROUND.


&&

$$

GAMIS

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KEAX [190221]: Preliminary Local Storm Report

NWUS53 KEAX 190221
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
821 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0818 PM SNOW OREGON 39.98N 95.14W
12/18/2010 E0.8 INCH HOLT MO LAW ENFORCEMENT

AROUND THREE QUARTERS OF AN INCH OF SNOW ON THE GROUND.


&&

$$

GAMIS

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KEAX [190216]: Preliminary Local Storm Report

NWUS53 KEAX 190216
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
816 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0815 PM SNOW CAMERON 39.74N 94.24W
12/18/2010 M0.8 INCH DEKALB MO LAW ENFORCEMENT

ONE HALF TO THREE QUARTERS OF AN INCH OF SNOW ACROSS
TOWN.


&&

$$

GAMIS

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KPIH [190144]: Preliminary Local Storm Report

NWUS55 KPIH 190144
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
644 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0625 PM HEAVY SNOW 10 NW KETCHUM 43.79N 114.52W
12/18/2010 E10.5 INCH BLAINE ID MESONET

STORM TOTAL THROUGH 5 PM - LOST WOOD DIVIDE - SNOTEL SITE
- ELEVATION 7903 FEET

0625 PM SNOW 24 N CHALLIS 44.85N 114.22W
12/18/2010 E4.5 INCH CUSTER ID MESONET

STORM TOTAL THROUGH 5 PM - MORGAN CREEK - SNOTEL SITE -
ELEVATION 7440 FEET

0625 PM SNOW 37 NE MACKAY 44.29N 113.08W
12/18/2010 E5.5 INCH LEMHI ID MESONET

STORM TOTAL THROUGH 5 PM - MEADOW LAKE - SNOTEL SITE -
ELEVATION 9150 FEET

0625 PM HEAVY SNOW 22 NW KETCHUM 43.91N 114.69W
12/18/2010 E13.0 INCH BLAINE ID MESONET

STORM TOTAL THROUGH 5 PM - VIENNA MINE - SNOTEL SITE -
ELEVATION 8963 FEET -

0625 PM SNOW 20 ENE HAILEY 43.62N 113.93W
12/18/2010 E9.0 INCH BLAINE ID MESONET

STORM TOTAL THROUGH 5 PM - GARFIELD RANGER STATION -
SNOTEL SITE - ELEVATION 6560 FEET

0625 PM HEAVY SNOW 22 ENE KETCHUM 43.81N 113.97W
12/18/2010 E10.5 INCH CUSTER ID MESONET

STORM TOTAL THROUGH 5PM - GALENA SUMMIT - SNOTEL SITE -
ELEVATION 8782 FEET

0625 PM HEAVY SNOW 20 NW KETCHUM 43.89N 114.66W
12/18/2010 E13.5 INCH BLAINE ID MESONET

STORM TOTAL THROUGH 5 PM - GALENA - SNOTEL SITE -
ELEVATION 7440 FEET

0625 PM SNOW 12 NNW KETCHUM 43.85N 114.47W
12/18/2010 E4.5 INCH BLAINE ID MESONET

STORM TOTAL THROUGH 5 PM - CHOCOLATE GULCH - SNOTEL SITE
- ELEVATION 6440 FEET

0625 PM SNOW 16 WSW KETCHUM 43.60N 114.67W
12/18/2010 E7.0 INCH CAMAS ID MESONET

STORM TOTAL THROUGH 5 PM - DOLLARHIDE - SNOTEL SITE -
ELEVATION 8421 FEET

0625 PM SNOW 14 N MONTPELIER 42.53N 111.30W
12/18/2010 E4.5 INCH BEAR LAKE ID MESONET

STORM TOTAL THROUGH 5 PM - SLUG CREEK DIVIDE - SNOTEL
SITE - ELEVATION 7225 FEET

0625 PM SNOW 11 NE MONTPELIER 42.44N 111.15W
12/18/2010 E5.0 INCH BEAR LAKE ID MESONET

STORM TOTAL THROUGH 5 PM - GIVEOUT - SNOTEL SITE -
ELEVATION 6932 FEET

0625 PM SNOW 14 E PRESTON 42.10N 111.60W
12/18/2010 E5.5 INCH FRANKLIN ID MESONET

STORM TOTAL THROUGH 5 PM - FRANKLIN BASIN - SNOTEL SITE -
ELEVATION 8170 FEET

0625 PM SNOW 20 NE PRESTON 42.30N 111.60W
12/18/2010 E8.5 INCH FRANKLIN ID MESONET

STORM TOTAL THROUGH 5 PM - EMIGRANT SUMMIT - SNOTEL SITE
- ELEVATION 7390 FEET

0625 PM SNOW 10 SSE LAVA HOT SPRINGS 42.49N 111.93W
12/18/2010 E5.5 INCH BANNOCK ID MESONET

STORM TOTAL THROUGH 5 PM - SEDGWICK PEAK - SNOTEL SITE -
ELEVATION 7897 FEET

0625 PM SNOW 14 NW PRESTON 42.24N 112.07W
12/18/2010 E4.0 INCH FRANKLIN ID MESONET

STORM TOTAL THROUGH 5 PM - OXFORD SPRINGS - SNOTEL SITE -
ELEVATION 6740 FEET

0625 PM SNOW 9 E MACKS INN 44.50N 111.15W
12/18/2010 E5.0 INCH FREMONT ID MESONET

STORM TOTAL THROUGH 5 PM - BLACK BEAR - SNOTEL SITE -
ELEVATIONM 8150 FEET

0625 PM SNOW 28 NE STANLEY 44.50N 114.54W
12/18/2010 E6.0 INCH CUSTER ID MESONET

STORM TOTAL THROUGH 5 PM - MILL CREEK SUMMIT - SNOTEL
SITE - ELEVATION 8870 FEET

0625 PM SNOW 17 SW MACKAY 43.74N 113.85W
12/18/2010 E4.0 INCH CUSTER ID MESONET

STORM TOTAL THROUGH 5 PM - SMILEY MOUNTAIN - SNOTEL SITE
- ELEVATION 9520 FEET


&&

$$

CHATTINGS

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KAPX [190136]: Preliminary Local Storm Report

NWUS53 KAPX 190136
LSRAPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GAYLORD MI
836 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0800 PM SNOW 4 NNW PELLSTON 45.61N 84.82W
12/18/2010 M3.0 INCH EMMET MI TRAINED SPOTTER

12HR TOTAL THRU 8PM. SNOW DEPTH 10 INCHES.


&&

$$

LOCKER

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 190059
SWODY1
SPC AC 190057

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0657 PM CST SAT DEC 18 2010

VALID 190100Z - 191200Z

...NO SVR TSTM AREAS FORECAST...

...PACIFIC NW...
UPPER LOW NEAR 49N/131W IS EXPECTED TO DRIFT WNW TONIGHT AS A STRONG
MID/UPPER LEVEL JET CORE REMAINS IN PLACE ACROSS NRN CA/SRN ORE.
WATER VAPOR IMAGERY SHOWS NEXT MID-LEVEL WAVE ABOUT 200 MILES W OF
ORE AND OCEANIC LIGHTNING PRODUCTS SUGGEST LIGHTNING IS ASSOCIATED
WITH EXTENSIVE OPEN-CELL CUMULUS FIELD.

MID-LEVEL COLD POOL /H5 TEMPERATURES AT OR BELOW MINUS 30 DEG C/ AND
MOIST ONSHORE FLOW HAS ALREADY BEEN FAVORABLE FOR SPORADIC
THUNDERSTORMS ALONG THE COAST OF ORE...WA AND NRN CA THROUGH THE
DAY. SET-UP WILL REMAIN IN PLACE TONIGHT WITH THUNDER PROBABILITIES
INCREASING LATER TONIGHT AS THE AFOREMENTIONED SHORTWAVE TROUGH
APPROACHES THE COAST.

..RACY.. 12/19/2010

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KMFR [190053]: Preliminary Local Storm Report

NWUS56 KMFR 190053
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
453 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0452 PM HEAVY RAIN 2 NNE SELMA 42.30N 123.59W
12/18/2010 M1.86 INCH JOSEPHINE OR TRAINED SPOTTER

24 HOUR AMOUNT ENDING 5PM SATURDAY.


&&

$$

HOLTZ

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KGJT [190042]: Preliminary Local Storm Report

NWUS55 KGJT 190042
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
541 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM SNOW 1 SE STEAMBOAT SPRINGS 40.47N 106.81W
12/18/2010 M6.4 INCH ROUTT CO TRAINED SPOTTER

3.9 INCHES OF SNOW SINCE 7 AM BRINGING STORM TOTAL SO
FAR TO 6.4 INCHES.


&&

EVENT NUMBER GJT1000852

$$

MALEKSA

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KPIH [190038]: Preliminary Local Storm Report

NWUS55 KPIH 190038
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
538 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0530 PM SNOW 1 NW HAILEY 43.52N 114.31W
12/18/2010 M3.5 INCH BLAINE ID TRAINED SPOTTER

STORM TOTAL


&&

$$

CHATTINGS

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KGJT [190039]: Preliminary Local Storm Report

NWUS55 KGJT 190039
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
539 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0515 PM SNOW RABBIT EARS PASS 40.42N 106.65W
12/18/2010 E5.0 INCH ROUTT CO LAW ENFORCEMENT

PLOWS ESTIMATED 4 TO 5 INCHES. REPORT RELAYED FROM
CRAIG DISPATCH


&&

EVENT NUMBER GJT1000851

$$

MALEKSA

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KPIH [190031]: Preliminary Local Storm Report

NWUS55 KPIH 190031
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
531 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0530 PM SNOW 4 N LAGO 42.50N 111.68W
12/18/2010 M4.0 INCH CARIBOU ID TRAINED SPOTTER

STORM TOTAL


&&

$$

CHATTINGS

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KGJT [190006]: Preliminary Local Storm Report

NWUS55 KGJT 190006
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
506 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0504 PM HEAVY SNOW VAIL PASS 39.53N 106.22W
12/18/2010 U0.0 INCH EAGLE CO DEPT OF HIGHWAYS

I-70 EASTBOUND CLOSED AT MM171 MINTURN DUE TO WEATHER
RELATED ACCIDENTS.


&&

EVENT NUMBER GJT1000850

$$

MALEKSA

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KMFR [182353]: Preliminary Local Storm Report

NWUS56 KMFR 182353
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
353 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0352 PM HEAVY RAIN 5 SE CAVE JUNCTION 42.11N 123.58W
12/18/2010 M1.24 INCH JOSEPHINE OR TRAINED SPOTTER

24 HOUR RAINFALL ENDING AT 330 PM PST.


&&

$$

SPILDE

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KABQ [182343]: Preliminary Local Storm Report...summary

NWUS55 KABQ 182343
LSRABQ

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
443 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0915 AM SNOW 9 NE AZTEC 36.83N 108.00W
12/18/2010 M1.2 INCH SAN JUAN NM PUBLIC

0915 AM SNOW 2 NW EL RITO 36.34N 106.19W
12/18/2010 M1.2 INCH RIO ARRIBA NM PUBLIC

0926 AM SNOW 5 NE AZTEC 36.88N 107.94W
12/18/2010 M1.5 INCH SAN JUAN NM PARK/FOREST SRVC

1000 AM SNOW 7 NE FARMINGTON 36.83N 108.10W
12/18/2010 M1.3 INCH SAN JUAN NM PUBLIC

1150 AM SNOW 4 N LA PLATA 36.99N 108.19W
12/18/2010 E2.0 INCH SAN JUAN NM TRAINED SPOTTER

0340 PM SNOW CHAMA 36.89N 106.58W
12/18/2010 M2.3 INCH RIO ARRIBA NM CO-OP OBSERVER

0400 PM SNOW 15 SW COYOTE 36.02N 106.80W
12/18/2010 E5.0 INCH RIO ARRIBA NM OTHER FEDERAL

VACAS LOCAS SNOTEL.

0400 PM SNOW 9 WSW BLUEWATER LAKE 35.23N 108.26W
12/18/2010 E2.0 INCH CIBOLA NM OTHER FEDERAL

RICE PARK SNOTEL.

0400 PM SNOW 7 E CANJILON 36.50N 106.31W
12/18/2010 E4.0 INCH RIO ARRIBA NM OTHER FEDERAL

BATEMAN SNOTEL.

0400 PM SNOW 11 NNW CANON PLAZA 36.70N 106.25W
12/18/2010 E1.0 INCH RIO ARRIBA NM OTHER FEDERAL

HOPEWELL SNOTEL.

0400 PM SNOW 5 NW CHAMA 36.95N 106.65W
12/18/2010 E3.0 INCH RIO ARRIBA NM OTHER FEDERAL

CHAMITA SNOTEL.

0400 PM SNOW 5 SSW TOADLENA 36.17N 108.93W
12/18/2010 E5.0 INCH SAN JUAN NM OTHER FEDERAL

NAVAJO WHISKEY CREEK SNOTEL.


&&

EVENT NUMBER ABQ1002477 ABQ1002479 ABQ1002475 ABQ1002474 ABQ1002473
ABQ1002472 ABQ1002466 ABQ1002467 ABQ1002468 ABQ1002469 ABQ1002470
ABQ1002471

$$

GUYER

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KVEF [182333]: Preliminary Local Storm Report

NWUS55 KVEF 182333
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
333 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0300 PM HEAVY SNOW 1 WNW ASPENDELL 37.24N 118.60W
12/18/2010 M12.0 INCH INYO CA TRAINED SPOTTER

A SPOTTER REPORTED STORM TOTAL SNOWFALL OF 12 INCHES FROM
6 AM FRIDAY THROUGH 3 PM SATURDAY.


&&

$$

JH

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KPIH [182332]: Preliminary Local Storm Report

NWUS55 KPIH 182332
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
431 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0429 PM SNOW 5 WSW GANNETT 43.33N 114.27W
12/18/2010 M3.0 INCH BLAINE ID TRAINED SPOTTER

STORM TOTAL SO FAR TODAY


&&

$$

CHATTINGS

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KRAH [182256]: Preliminary Local Storm Report

NWUS52 KRAH 182256
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
556 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0549 PM SNOW RDU INTERNATIONAL AIRPO 35.87N 78.78W
12/18/2010 M0.0 INCH WAKE NC FAA

TRACE OF SNOW.


&&

EVENT NUMBER RAH1000108

$$

MEB

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KRAH [182250]: Preliminary Local Storm Report

NWUS52 KRAH 182250
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
550 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0549 PM SNOW WARRENTON 36.40N 78.16W
12/18/2010 E0.0 INCH WARREN NC 911 CALL CENTER

TRACE OF SNOW. LIGHT SNOW STILL FALLING.


&&

EVENT NUMBER RAH1000107

$$

BSD

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KRAH [182245]: Preliminary Local Storm Report

NWUS52 KRAH 182245
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
545 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0542 PM SNOW HENDERSON 36.32N 78.41W
12/18/2010 E1.0 INCH VANCE NC 911 CALL CENTER

SNOW COVERING GRASS. LIGHT SNOW STILL FALLING.


&&

EVENT NUMBER RAH1000106

$$

BSD

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KHNX [182232]: Preliminary Local Storm Report

NWUS56 KHNX 182232
LSRHNX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
231 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0216 PM SNOW TENAYA LAKE 37.84N 119.45W
12/18/2010 M25.0 INCH MARIPOSA CA MESONET

SNOTEL OBSERVATION AT 8150 FEET.

0216 PM SNOW GREEN MTN 37.56N 119.24W
12/18/2010 M28.0 INCH MADERA CA MESONET

SNOTEL OBSERVATION AT 7900 FEET.

0216 PM SNOW OSTRANDER LAKE 37.64N 119.55W
12/18/2010 M27.0 INCH MARIPOSA CA MESONET

SNOTEL OBSERVATION AT 8200 FEET.

0216 PM SNOW TAMARACK SUMMIT 37.17N 119.20W
12/18/2010 M19.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 7550 FEET.

0216 PM SNOW TUOLUMNE MEADOWS 37.87N 119.35W
12/18/2010 M23.0 INCH TUOLUMNE CA MESONET

SNOTEL OBSERVATION AT 8600 FEET.

0216 PM SNOW KAISER POINT 37.30N 119.10W
12/18/2010 M26.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 9200 FEET.

0216 PM SNOW AGNEW PASS 37.73N 119.14W
12/18/2010 M26.0 INCH MADERA CA MESONET

SNOTEL OBSERVATION AT 9450 FEET

0216 PM SNOW UPPER BURNT CORRAL 37.18N 118.94W
12/18/2010 M23.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 9700 FEET.

0216 PM SNOW VOLCANIC KNOB 37.39N 118.90W
12/18/2010 M25.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 10050 FEET.

0216 PM SNOW BLACKCAP BASIN 37.07N 118.77W
12/18/2010 M33.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 10300 FEET.

0216 PM SNOW CHARLOTTE LAKE 36.80N 118.42W
12/18/2010 M30.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 10400 FEET.

0216 PM SNOW BISHOP PASS 37.10N 118.56W
12/18/2010 M20.0 INCH FRESNO CA MESONET

SNOTEL OBSERVATION AT 11200 FEET.

0216 PM SNOW FAREWELL GAP 36.41N 118.58W
12/18/2010 M19.0 INCH TULARE CA MESONET

SNOTEL OBSERVATION AT 9500 FEET.

0216 PM SNOW CHAGOOPA PLATEAU 36.50N 118.44W
12/18/2010 M29.0 INCH TULARE CA MESONET

SNOTEL OBSERVATION AT 11400 FEET.


&&

$$

BPET

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KRAH [182229]: Preliminary Local Storm Report

NWUS52 KRAH 182229
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
529 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0525 PM SNOW GRAHAM 36.06N 79.39W
12/18/2010 E0.1 INCH ALAMANCE NC 911 CALL CENTER

LIGHT SNOW OR FLURRIES. COATING ON GRASS AND CAR TOPS.
ROADS WET.


&&

EVENT NUMBER RAH1000105

$$

MWS

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KMEG [182223]: Preliminary Local Storm Report...summary

NWUS54 KMEG 182223
LSRMEG

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
423 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0230 AM SNOW MIDTOWN MEMPHIS 35.13N 89.98W
12/18/2010 M0.5 INCH SHELBY TN TRAINED SPOTTER

0250 AM SNOW 2 N GERMANTOWN 35.12N 89.79W
12/18/2010 M0.4 INCH SHELBY TN OFFICIAL NWS OBS

MEASURED AT THE NWS OFFICE.

0600 AM SNOW 3 NE WHITEHAVEN 35.05N 90.00W
12/18/2010 M0.3 INCH SHELBY TN OFFICIAL NWS OBS

0.3 INCHES OF SNOW AT MEMPHIS INTERNATIONAL AIRPORT WITH
0.02 INCHES WATER EQUIVALENT.


&&

$$

CDG

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KPIH [182203]: Preliminary Local Storm Report

NWUS55 KPIH 182203
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
303 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0301 PM SNOW SSW BERN 42.33N 111.38W
12/18/2010 M5.0 INCH BEAR LAKE ID TRAINED SPOTTER

FIVE INCHES OF NEW SNOW


&&

$$

DPHELPS

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KRAH [182202]: Preliminary Local Storm Report

NWUS52 KRAH 182202
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
502 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0450 PM SNOW DURHAM 35.98N 78.92W
12/18/2010 M0.0 INCH DURHAM NC TRAINED SPOTTER

LIGHT SNOW... TRACE


&&

EVENT NUMBER RAH1000104

$$

BSD

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KRAH [182159]: Preliminary Local Storm Report

NWUS52 KRAH 182159
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
459 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0430 PM SNOW 1 W ROCKY MOUNT 35.95N 77.81W
12/18/2010 E0.1 INCH NASH NC BROADCAST MEDIA

SNOW COVERING GRASS


&&

EVENT NUMBER RAH1000103

$$

BSD

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KGJT [182140]: Preliminary Local Storm Report

NWUS55 KGJT 182140
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
240 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1200 PM SNOW 3 ESE HESPERUS 37.26N 107.98W
12/18/2010 M9.0 INCH LA PLATA CO TRAINED SPOTTER

12 HOUR SNOWFALL TOTAL SINCE MIDNIGHT DEC 18TH.


&&

EVENT NUMBER GJT1000849

$$

MALEKSA

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KGJT [182136]: Preliminary Local Storm Report

NWUS55 KGJT 182136
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
236 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1131 AM SNOW COAL BANK PASS 37.70N 107.78W
12/18/2010 M9.5 INCH SAN JUAN CO AVALANCHE FCSTR

24 HOUR SNOWFALL...WATER EQUIVALENT OF 0.5 INCHES.


&&

EVENT NUMBER GJT1000848

$$

MALEKSA

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KGJT [182135]: Preliminary Local Storm Report

NWUS55 KGJT 182135
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
235 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1131 AM SNOW MOLAS PASS 37.73N 107.70W
12/18/2010 M7.5 INCH SAN JUAN CO AVALANCHE FCSTR

24 HOUR SNOWFALL...WATER EQUIVALENT OF 0.4 INCHES.


&&

EVENT NUMBER GJT1000847

$$

MALEKSA

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KGJT [182134]: Preliminary Local Storm Report

NWUS55 KGJT 182134
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
234 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1131 AM SNOW RED MOUNTAIN PASS 37.90N 107.70W
12/18/2010 M8.0 INCH OURAY CO AVALANCHE FCSTR

24 HOUR SNOWFALL...WATER EQUIVALENT OF 0.35 INCHES.


&&

EVENT NUMBER GJT1000846

$$

MALEKSA

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KGJT [182133]: Preliminary Local Storm Report

NWUS55 KGJT 182133
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
233 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1131 AM SNOW MONUMENT (HIGHWAY 550) 37.97N 107.66W
12/18/2010 M4.5 INCH OURAY CO AVALANCHE FCSTR

24 HOUR SNOWFALL...WATER EQUIVALENT OF 0.2 INCHES.


&&

EVENT NUMBER GJT1000845

$$

MALEKSA

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KRAH [182131]: Preliminary Local Storm Report

NWUS52 KRAH 182131
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
430 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0427 PM SNOW 6 ENE LITTLETON 36.46N 77.81W
12/18/2010 E0.0 INCH HALIFAX NC LAW ENFORCEMENT

HEAVY SNOW. TRACE.


&&

EVENT NUMBER RAH1000102

$$

MEB

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KPDT [182107]: Preliminary Local Storm Report

NWUS56 KPDT 182107
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
107 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1200 PM HEAVY SNOW ESE LA PINE 43.67N 121.49W
12/18/2010 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

THE OBSERVER MEASURED 6 INCHES OF NEW SNOW AND IT IS
CURRENTLY SNOWING HEAVY AT 35 DEGREES.

1200 PM HEAVY SNOW 5 NNW LA PINE 43.74N 121.54W
12/18/2010 M8.0 INCH DESCHUTES OR TRAINED SPOTTER

AFTER REPORTING 6.5 INCHES EARLIER THE OBSERVER HAS
RECIEVED AND ADDITIONAL 1.5 INCHES AND THE SNOW HAS
BECOME VERY LIGHT. THE 12 HOUR TOTAL WAS 8 INCHES.

1200 PM HEAVY SNOW 1 N THREE RIVERS 43.83N 121.47W
12/18/2010 M12.0 INCH DESCHUTES OR TRAINED SPOTTER

THE OBSERVER MEASURED 12 INCHES OF SNOW OVERNIGHT. THE
SNOW STARTED AROUND 830 TO 900 PM FRIDAY. ELEVATION 4160
FEET.


&&

$$

RQB

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KPUB [182106]: Preliminary Local Storm Report

NWUS55 KPUB 182106
LSRPUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
205 PM MST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0708 AM SNOW WOLF CREEK PASS 37.48N 106.80W
12/18/2010 M12.0 INCH MINERAL CO PUBLIC

NEW SNOW IN LAST 24 HOURS REPORTED BY WOLF CREEK SKI AREA


1224 PM SNOW MONARCH PASS 38.50N 106.33W
12/18/2010 M5.5 INCH GUNNISON CO PUBLIC

NEW SNOW IN LAST 24 HOURS REPORTED BY MONARCH SKI AREA


&&

$$

LW

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KPDT [182101]: Preliminary Local Storm Report

NWUS56 KPDT 182101
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
100 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0740 AM HEAVY SNOW WSW CAMP SHERMAN 44.46N 121.65W
12/18/2010 M9.0 INCH JEFFERSON OR TRAINED SPOTTER

OBSERVER MEASURED 9 INCHES OF NEW SNOW ACCUMULATION IN 12
HOURS.

0750 AM HEAVY SNOW 2 SSW CAMP SHERMAN 44.44N 121.66W
12/18/2010 M8.0 INCH JEFFERSON OR TRAINED SPOTTER

OBSERVER MEASURE 8 INCHES OF SNOW FROM 1020 PM FRIDAY TO
630 AM SATURDAY.

0752 AM HEAVY SNOW 5 SSW CHENOWETH 45.56N 121.28W
12/18/2010 M5.5 INCH WASCO OR TRAINED SPOTTER

THE OBSERVER MEASURED 5 AND A HALF INCHES SINCE 230 AM
FRIDAY. IT IS CURRENTLY 32 DEGREES AND SNOWING HEAVY.
ELEVATION 656 FEET.

0821 AM HEAVY SNOW 4 WNW LA PINE 43.69N 121.57W
12/18/2010 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

OBSERVER REPORTED 6 INCHES OF NEW SNOW OVERNIGHT.

0821 AM HEAVY SNOW NW REDMOND 44.26N 121.17W
12/18/2010 M8.0 INCH DESCHUTES OR EMERGENCY MNGR

THE EMERGENCY MANAGER MEASURED 8 INCHES OF NEW SNOW
OVERNIGHT. ELEVATION 3100 FEET

0821 AM HEAVY SNOW 7 NW MADRAS 44.70N 121.23W
12/18/2010 M6.6 INCH JEFFERSON OR CO-OP OBSERVER

PELTON DAM COOP OBSERVER MEASURED 6.6 INCHES OF NEW SNOW.


0821 AM SNOW IRRIGON 45.90N 119.49W
12/18/2010 E3.0 INCH BENTON OR PUBLIC

A MEMBER OF THE PUBLIC ESTIMATED AROUND 3 INCHES OF SNOW
OVERNIGHT IN IRRIGON

0900 AM HEAVY SNOW 5 NNW BEND 44.13N 121.34W
12/18/2010 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

OBSERVER MEASURED 6 INCHES OF SNOW OVERNIGHT.

0918 AM SNOW 3 W CITY OF THE DALLES 45.60N 121.24W
12/18/2010 E3.5 INCH WASCO OR TRAINED SPOTTER

THE OBSEVER ESTIMATED 3 TO 4 INCHES OF NEW SNOW SINCE 100
AM. ELEVATION 1200 FEET.

0918 AM HEAVY SNOW 9 NW TUMALO 44.24N 121.46W
12/18/2010 M7.0 INCH DESCHUTES OR TRAINED SPOTTER

THE OBSERVER MEASURED 7 INCHES OF NEW SNOW OVERNIGHT.

0920 AM HEAVY SNOW 2 W CITY OF THE DALLES 45.60N 121.22W
12/18/2010 M4.0 INCH WASCO OR TRAINED SPOTTER

THE OBSEVER MEASURED 4 INCHES OF NEW SNOW OVERNIGHT.
CURRENTLY SNOWING FLURRIES. ELEVATION 740 FEET.

0920 AM HEAVY SNOW 3 SW ROWENA 45.64N 121.32W
12/18/2010 M6.0 INCH WASCO OR TRAINED SPOTTER

THE OBSERVER MEASURED 6 INCHES OF NEW SNOW OVERNIGHT. IT
IS CURRENTLY SNOWING LIGHTLY.

0930 AM SNOW 2 ESE CITY OF THE DALLE 45.59N 121.14W
12/18/2010 M3.0 INCH WASCO OR TRAINED SPOTTER

THE OBSERVER MEASURED 3 INCHES OF NEW SNOW OVERNIGHT.

0933 AM SNOW 1 ESE TROUT LAKE 45.99N 121.51W
12/18/2010 M3.0 INCH KLICKITAT WA TRAINED SPOTTER

OBSERVER MEASURED 3 INCHES OF NEW SNOW OVERNIGHT, AND IS
CURRENTLY SNOWING LIGHTLY.

0934 AM SNOW 1 SSW SNOWDEN 45.82N 121.36W
12/18/2010 M6.0 INCH KLICKITAT WA TRAINED SPOTTER

SINCE 400 AM THE OBSERVER MEASURED 6 INCHES OF POWDERY
SNOW. THE TOTAL SNOW DEPTH IS 11 INCHES AND THE ELEVATION
IS 2400 FEET.

1027 AM SNOW GOLDENDALE 45.82N 120.82W
12/18/2010 E4.5 INCH KLICKITAT WA EMERGENCY MNGR

THE EMERGENCY MANAGER AT GOLDENDALE ESTIMATED 4 TO 5
INCHES OF NEW SNOW OVERNIGTH.

1047 AM HEAVY SNOW 5 NNW LA PINE 43.74N 121.54W
12/18/2010 M6.5 INCH DESCHUTES OR TRAINED SPOTTER

THE OBSERVER MEASURED 6.5 INCHES OF NEW SNOW AND IT IS
CURRENTLY 29 DEGREES.

1117 AM HEAVY SNOW SUNRIVER 43.88N 121.44W
12/18/2010 M8.0 INCH DESCHUTES OR NWS EMPLOYEE

AN OFF DUTY NWS EMPLOYEE VISITING SUNRIVER MEASURED 8
INCHES OF NEW SNOW OVERNIGHT. IT IS CURRENTLY SNOWING
MODERATELY.


&&

$$

RQB

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KEAX [182056]: Preliminary Local Storm Report

NWUS53 KEAX 182056
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
256 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0255 PM SNOW 6 WSW TROY 39.75N 95.19W
12/18/2010 E0.5 INCH DONIPHAN KS TRAINED SPOTTER


&&

$$

DDEROCHE

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KRAH [182056]: Preliminary Local Storm Report

NWUS52 KRAH 182056
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
356 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1201 PM SNOW STANFIELD 35.24N 80.43W
12/18/2010 E0.0 INCH STANLY NC PUBLIC

TRACE OF SNOW


&&

EVENT NUMBER RAH1000101

$$

MEB

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KRAH [182054]: Preliminary Local Storm Report

NWUS52 KRAH 182054
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
354 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0149 PM SNOW ANGIER 35.51N 78.74W
12/18/2010 E0.0 INCH HARNETT NC PUBLIC

TRACE OF SNOW


&&

EVENT NUMBER RAH1000100

$$

MEB

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KRAH [182053]: Preliminary Local Storm Report

NWUS52 KRAH 182053
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
353 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0259 PM SNOW FUQUAY-VARINA 35.59N 78.79W
12/18/2010 E0.0 INCH WAKE NC PUBLIC

TRACE OF SNOW


&&

EVENT NUMBER RAH1000099

$$

MEB

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KRAH [182052]: Preliminary Local Storm Report

NWUS52 KRAH 182052
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
351 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0203 PM SNOW HILLSBOROUGH 36.07N 79.10W
12/18/2010 E0.0 INCH ORANGE NC PUBLIC

TRACE OF SNOW


&&

EVENT NUMBER RAH1000098

$$

MEB

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KRAH [182050]: Preliminary Local Storm Report

NWUS52 KRAH 182050
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
349 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0301 PM SNOW OXFORD 36.31N 78.59W
12/18/2010 E0.0 INCH GRANVILLE NC PUBLIC

TRACE OF SNOW


&&

EVENT NUMBER RAH1000097

$$

MEB

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KRAH [182048]: Preliminary Local Storm Report

NWUS52 KRAH 182048
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
348 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0316 PM SNOW KNIGHTDALE 35.79N 78.49W
12/18/2010 E0.0 INCH WAKE NC PUBLIC

TRACE SNOW AND SLEET

0316 PM SLEET KNIGHTDALE 35.79N 78.49W
12/18/2010 E0.0 INCH WAKE NC PUBLIC

TRACE SNOW AND SLEET


&&

EVENT NUMBER RAH1000095
EVENT NUMBER RAH1000096

$$

MEB

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KHNX [182038]: Preliminary Local Storm Report...corrected

NWUS56 KHNX 182038
LSRHNX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
1237 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1021 AM SNOW TUOLUMNE MEADOWS 37.87N 119.35W
12/18/2010 M23.0 INCH TUOLUMNE CA CO-OP OBSERVER

24 HOUR ACCUMULATION.

1021 AM SNOW LODGEPOLE 36.60N 118.73W
12/18/2010 M15.0 INCH TULARE CA CO-OP OBSERVER

24 HOUR ACCUMULATION.

1100 AM HEAVY SNOW CHAGOOPA PLATEAU SNOTEL 36.50N 118.44W
12/18/2010 E30.0 INCH TULARE CA MESONET

SNOTEL ELEV. 10300 FT.

1100 AM HEAVY SNOW CRABTREE MEADOW SNOTEL 36.56N 118.35W
12/18/2010 E30.0 INCH TULARE CA MESONET

SNOTEL ELEV. 10700 FT.

1100 AM HEAVY SNOW BISHOP PASS SNOTEL 37.10N 118.56W
12/18/2010 E25.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 11200 FT.

1100 AM HEAVY SNOW CHARLOTTE LAKE SNOTEL 36.80N 118.42W
12/18/2010 E30.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 10400 FT.

1100 AM HEAVY SNOW VOLCANIC KNOB SNOTEL 37.39N 118.90W
12/18/2010 E27.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 10050 FT.

1100 AM HEAVY SNOW UPPER BURNT CORRAL SNOT 37.18N 118.94W
12/18/2010 E32.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 9700 FT.

1100 AM HEAVY SNOW AGNEW PASS SNOTEL 37.73N 119.14W
12/18/2010 E23.0 INCH MADERA CA MESONET

SNOTEL ELEV. 9450 FT.

1100 AM HEAVY SNOW KAISER POINT SNOTEL 37.30N 119.10W
12/18/2010 E24.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 9200 FT.

1100 AM HEAVY SNOW OSTRANDER LAKE SNOTEL 37.64N 119.55W
12/18/2010 E21.0 INCH MARIPOSA CA MESONET

SNOTEL ELEV. 8200 FT.

1100 AM HEAVY SNOW TAMARACK SUMMIT SNOTEL 37.17N 119.20W
12/18/2010 E23.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 7550 FT.

1100 AM HEAVY SNOW TENAYA LAKE SNOTEL 37.84N 119.45W
12/18/2010 E26.0 INCH MARIPOSA CA MESONET

SNOTEL ELEV. 8150 FT.

1100 AM HEAVY SNOW CHILKOOT MEADOW SNOTEL 37.41N 119.49W
12/18/2010 E18.0 INCH MADERA CA MESONET

SNOTEL ELEV. 7150 FT.

1100 AM HEAVY SNOW HUNTINGTON LAKE 37.23N 119.24W
12/18/2010 E17.0 INCH FRESNO CA MESONET

SNOTEL ELEV. 7000 FT.

1100 AM HEAVY SNOW CASA VIEJA MEADOWS SNOT 36.20N 118.27W
12/18/2010 E22.0 INCH TULARE CA MESONET

SNOTEL ELEV. 8300 FT.

1100 AM HEAVY SNOW TUNNEL GUARD STATION SN 36.37N 118.29W
12/18/2010 E20.0 INCH TULARE CA MESONET

SNOTEL ELEV. 8900 FT.

1100 AM HEAVY SNOW FAREWELL GAP SNOTEL 36.41N 118.58W
12/18/2010 E26.0 INCH TULARE CA MESONET

SNOTEL ELEV. 9500 FT.

1100 AM HEAVY SNOW QUAKING ASPEN SNOTEL 36.12N 118.54W
12/18/2010 E17.0 INCH TULARE CA MESONET

SNOTEL ELEV. 7200 FT.


&&

$$

BINGHAM

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KEAX [182021]: Preliminary Local Storm Report...corrected

NWUS53 KEAX 182021
LSREAX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
221 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0218 PM SNOW LEONA 39.79N 95.32W
12/18/2010 E1.0 INCH DONIPHAN KS TRAINED SPOTTER


&&

$$

DDEROCHE

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KEAX [182020]: Preliminary Local Storm Report

NWUS53 KEAX 182020
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
220 PM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0218 PM SNOW LEONA 39.79N 95.32W
12/18/2010 E1.0 INCH DONIPHAN KS PUBLIC


&&

$$

DDEROCHE

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KMFR [182004]: Preliminary Local Storm Report

NWUS56 KMFR 182004
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1204 PM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1200 PM HEAVY SNOW N TENNANT 41.58N 121.91W
12/18/2010 M6.0 INCH SISKIYOU CA TRAINED SPOTTER

6 INCHES OF HEAVY WET SNOW FELL FROM 6 PM PST FRIDAY
UNTIL MIDNIGHT. LIGHT SNOW CONTINUED OVERNIGHT BUT WAS
WET AND ACCUMULATION COMPACTED TO 4 INCHES BY SATURDAY
MORNING.


&&

$$

SPILDE

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KRAH [182000]: Preliminary Local Storm Report

NWUS52 KRAH 182000
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
300 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0259 PM SNOW EFLAND 36.06N 79.17W
12/18/2010 E1.0 INCH ORANGE NC COCORAHS

COVERING GRASS


&&

EVENT NUMBER RAH1000093

$$

JO

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 181955
SWODY1
SPC AC 181954

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0154 PM CST SAT DEC 18 2010

VALID 182000Z - 191200Z

...NO SVR TSTM AREAS FORECAST...

...S FL...
HAVE REDUCED THE SIZE OF THE LOW-END THREAT AREA ACROSS S FL...AS
THE MAIN BAND OF CONVECTION ASSOCIATED WITH THE PASSING UPPER VORT
MAX APPROACHES THE ATLANTIC COAST. UNTIL THE CONVECTION CLEARS THE
COAST...A VERY LOW-END RISK FOR AN ISOLATED DAMAGING WIND GUST OR
BRIEF WATERSPOUT/TORNADO PERSISTS.

...PAC NW COAST...
HAVE REMOVED THAT LOW-PROBABILITY HAIL THREAT THIS FORECAST...AS
LACK OF CAPE SHOULD HINDER POTENTIAL FOR ANY MORE THAN SMALL HAIL.
OTHERWISE...POTENTIAL FOR AN ISOLATED DAMAGING GUST AND/OR BRIEF
TORNADO REMAINS NON-ZERO THIS AFTERNOON AND EARLY EVENING.

..GOSS.. 12/18/2010

.PREV DISCUSSION... /ISSUED 1027 AM CST SAT DEC 18 2010/

...S FL THIS AFTERNOON...
A LEAD SHORTWAVE TROUGH IS MOVING EWD FROM THE SE GULF OF MEXICO TO
S FL...IN ADVANCE OF THE PRIMARY WAVE OVER THE LOWER MS VALLEY. AT
THE SURFACE...A WEAK LOW W OF SRQ/FMY WILL PROGRESS EWD TO NEAR LAKE
OKEECHOBEE LATER THIS AFTERNOON AND OFF THE FL E COAST BY LATE
EVENING. GRADUAL MOISTENING OF THE WARM SECTOR AND LIMITED SURFACE
HEATING ACROSS SE FL HAVE CONTRIBUTED TO MLCAPE OF 500-1000 J/KG IN
ADVANCE OF THE ONGOING CONVECTION APPROACHING THE FL KEYS. THIS
CONVECTION WILL PERSIST THROUGH THE AFTERNOON...WITH THE POTENTIAL
FOR ADDITIONAL STORM DEVELOPMENT NEAR THE SE FL COAST WITHIN THE
PRIMARY MOISTURE PLUME. THE COMBINATION OF WEAK BUOYANCY AND
EFFECTIVE BULK SHEAR OF 30-40 KT WILL SUPPORT A FEW STORMS WITH
EMBEDDED BOW/SUPERCELL STRUCTURES...AND AN ATTENDANT RISK FOR STRONG
WIND GUSTS AND PERHAPS A BRIEF TORNADO. HOWEVER...THE OVERALL
SEVERE STORM RISK WILL BE TEMPERED BY POOR MIDLEVEL LAPSE RATES AND
MODEST LOW-LEVEL SHEAR.

...NRN CA/ORE COASTS TODAY...
A BAND OF THUNDERSTORMS IS SPREADING INLAND OVER THE ORE COAST IN
ASSOCIATION WITH AN EMBEDDED SHORTWAVE TROUGH. SATELLITE IMAGERY
CONFIRMS AN EXPANSE OF CELLULAR CONVECTION EXTENDING OFFSHORE IN THE
POST-FRONTAL ENVIRONMENT ON THE CYCLONIC SIDE OF THE MID-UPPER JET
WHERE LOW-MIDLEVEL LAPSE RATES ARE STEEP. THE THREAT FOR ADDITIONAL
THUNDERSTORMS WILL PERSIST THROUGH THE PERIOD NEAR THE COAST IN THE
ONSHORE FLOW REGIME...AIDED BY THE APPROACH OF ADDITIONAL/SUBTLE
SPEED MAXIMA. WEAK SURFACE-BASED INSTABILITY AND CLOCKWISE TURNING
HODOGRAPHS WITH HEIGHT SUGGEST SOME POTENTIAL FOR LOW-TOPPED
ROTATING STORMS...ESPECIALLY WHERE LOCAL TERRAIN MAINTAINS MORE SLY
NEAR-SURFACE WINDS. AN ISOLATED STRONG/DAMAGING GUST AND/OR BRIEF
TORNADO CANNOT BE RULED OUT. ADDITIONALLY...STEEP LAPSE RATES AND
COLD MIDLEVEL TEMPERATURES COULD SUPPORT HAIL FORMATION IN THE
STRONGER UPDRAFTS.

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KGSP [181953]: Preliminary Local Storm Report

NWUS52 KGSP 181953
LSRGSP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
ISSUED BY NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
253 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0249 PM SNOW 5 W SALISBURY 35.67N 80.57W
12/18/2010 M0.2 INCH ROWAN NC TRAINED SPOTTER

PRECIP FELL AS ALL SNOW.


&&

$$

NED

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KREV [181943]: Preliminary Local Storm Report...corrected

NWUS55 KREV 181943
LSRREV

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE RENO NV
1142 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0329 AM HEAVY SNOW 5 S CARSON CITY 39.10N 119.76W
12/18/2010 M10.0 INCH DOUGLAS NV TRAINED SPOTTER

A STORM TOTAL SNOWFALL OF 10.0 INCHES AT AN ELEVATION OF
4800 FT.

0553 AM HEAVY SNOW RENO 39.54N 119.82W
12/18/2010 M11.0 INCH WASHOE NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER REPORTED 11.0 INCHES OF
SNOWFALL IN WEST RENO SINCE 300 AM FRIDAY MORNING.

0612 AM HEAVY SNOW 5 ENE INCLINE VILLAGE 39.28N 119.88W
12/18/2010 M19.0 INCH WASHOE NV PUBLIC

DIAMOND PEAK SKI RESORT REPORTED 19.0 INCHES OF NEW SNOW
IN THE PAST 24 HOURS.

0643 AM HEAVY SNOW 4 W TRUCKEE 39.33N 120.28W
12/18/2010 M15.0 INCH NEVADA CA PUBLIC

TAHOE DONNER SKI AREA REPORTED 15 INCHES OF NEW SNOW IN
THE PAST 24 HOURS.

0646 AM HEAVY SNOW 20 NW TAHOE CITY 39.37N 120.40W
12/18/2010 M15.0 INCH NEVADA CA PUBLIC

BOREAL SKI RESORT REPORTED 15 INCHES OF NEW SNOW IN THE
PAST 24 HOURS.

0656 AM HEAVY SNOW 1 NE INCLINE VILLAGE 39.26N 119.94W
12/18/2010 M13.0 INCH WASHOE NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER IN INCLINE VILLAGE REPORTED 13
INCHES OF SNOWFALL FROM 600 AM PST FRIDAY THROUGH 600 AM
SATURDAY.

0721 AM HEAVY SNOW 1 WNW MAMMOTH LAKES 37.65N 118.98W
12/18/2010 M32.0 INCH MONO CA TRAINED SPOTTER

A TRAINED WEATHER SPOTTER REPORTED 32.0 INCHES OF
SNOWFALL FROM 300 AM PST FRIDAY THROUGH 700 AM SATURDAY.

0733 AM HEAVY SNOW 1 NNW CARSON CITY 39.18N 119.77W
12/18/2010 M9.5 INCH CARSON CITY NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER IN CARSON CITY REPORTED 9.5
INCHES OF SNOWFALL FROM 300 AM PST FRIDAY MORNING THROUGH
700 AM SATURDAY. THE ASSOCIATED WATER EQUIVALENT WITH
THIS SNOWFALL WAS 0.57 INCH.

0754 AM HEAVY SNOW 5 E VIRGINIA CITY 39.30N 119.54W
12/18/2010 M8.0 INCH LYON NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER IN DAYTON REPORTED 8.0 INCHES
OF SNOWFALL SINCE 300 AM PST FRIDAY.

0757 AM HEAVY SNOW 1 NE CARSON CITY 39.18N 119.75W
12/18/2010 M9.5 INCH CARSON CITY NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER IN CARSON CITY REPORTED 9.5
INCHES OF SNOWFALL SINCE 700 AM PST FRIDAY. THE WATER
EQUIVALENT ASSOCIATED WITH THIS SNOWFALL WAS 1.00 INCH.

0805 AM HEAVY SNOW 2 NW GARDNERVILLE 38.97N 119.76W
12/18/2010 M10.3 INCH DOUGLAS NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER NEAR GARDNERVILLE REPORTED 10.3
INCHES OF SNOW FALL SINCE 400 AM PST FRIDAY.

0814 AM HEAVY SNOW 5 E VIRGINIA CITY 39.31N 119.55W
12/18/2010 M7.5 INCH STOREY NV TRAINED SPOTTER

24 HR SNOWFALL AT 4500 FT.

0814 AM SNOW 5 ENE CISCO 39.32N 120.45W
12/18/2010 E8.5 INCH NEVADA CA TRAINED SPOTTER

24 HR SNOWFALL AT APPROX 6500 FT NEAR KINGVALE. VERY WET
SNOW POSSIBLY MIXED WITH RAIN LAST NIGHT. 3.25 INCHES
WATER EQUIVALENT.

0814 AM SNOW 2 SE SPANISH SPRINGS 39.65N 119.69W
12/18/2010 M3.5 INCH WASHOE NV TRAINED SPOTTER

24 HR SNOWFALL WITH 0.36 INCHES MELTED PRECIP.

0910 AM SNOW TOMS PLACE 37.56N 118.69W
12/18/2010 M8.5 INCH MONO CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL WITH 0.80 INCHES OF WATER
EQUIVALENT REPORTED AT 7000 FEET.

0925 AM HEAVY SNOW 2 W MAMMOTH LAKES 37.64N 118.99W
12/18/2010 M37.0 INCH MONO CA MESONET

24 HOUR SNOWFALL TOTAL AT MAMMOTH MOUNTAIN SNOW STUDY
PLOT AT 9000 FEET. 2.44 INCHES OF WATER EQUIVALENT
REPORTED.

1009 AM SNOW 4 SSW SUSANVILLE 40.33N 120.60W
12/18/2010 M4.0 INCH LASSEN CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL WITH 0.98 INCHES OF WATER
EQUIVALENT REPORTED AT 4800 FEET.

1019 AM HEAVY SNOW PROSSER CREEK RESERVOIR 39.38N 120.17W
12/18/2010 M24.0 INCH NEVADA CA TRAINED SPOTTER

24 HOUR SNOWFALL TOTAL.

1024 AM HEAVY SNOW HEAVENLY VALLEY 38.96N 119.89W
12/18/2010 M20.0 INCH DOUGLAS NV PUBLIC

24 HOUR SNOWFALL TOTAL AT HEAVENLY LAKE TAHOE SKI RESORT.


1049 AM HEAVY SNOW MOUNT ROSE SKI AREA 39.33N 119.89W
12/18/2010 M27.0 INCH WASHOE NV PUBLIC

24 HOUR SNOWFALL TOTAL AT MOUNT ROSE SKI RESORT. 15-17
INCHES REPORTED IN THE LAST 12 HOURS.

1053 AM HEAVY SNOW ALPINE MEADOWS 39.17N 120.22W
12/18/2010 M30.0 INCH PLACER CA PUBLIC

24 HOUR SNOWFALL TOTAL AT ALPINE MEADOWS SKI RESORT. 21
INCHES WAS REPORTED AT THE BASE OF THE RESORT.

1057 AM HEAVY SNOW 2 WSW TRUCKEE 39.32N 120.24W
12/18/2010 M24.0 INCH NEVADA CA PUBLIC

24 HOUR SNOWFALL TOTAL AT SUGAR BOWL SKI RESORT.

1058 AM HEAVY SNOW SQUAW VALLEY 39.20N 120.22W
12/18/2010 M24.0 INCH PLACER CA PUBLIC

24 HOUR SNOWFALL TOTAL AT SQUAW VALLEY USA SKI RESORT. 16
INCHES WAS REPORTED AT THE BASE AT 6200 FEET.

1105 AM SNOW BRIDGEPORT 38.26N 119.22W
12/18/2010 M8.0 INCH MONO CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL WITH 0.42 INCHES OF WATER
EQUIVALENT REPORTED.

1105 AM HEAVY SNOW BOCA RESERVOIR 39.40N 120.09W
12/18/2010 M10.0 INCH NEVADA CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 5575 FEET. OBSERVER ALSO
REPORTED 1.51 INCHES OF WATER EQUIVALANT.

1106 AM HEAVY RAIN LEE VINING 37.96N 119.12W
12/18/2010 M1.15 INCH MONO CA CO-OP OBSERVER

OBSERVER REPORTED HEAVY RAIN WITH LITTLE SNOWFALL.
ELEVATION 6800 FEET.

1108 AM HEAVY SNOW MINDEN 38.96N 119.77W
12/18/2010 M5.0 INCH DOUGLAS NV CO-OP OBSERVER

24 HOUR SNOWFALL TOTAL WITH 0.56 INCHES OF WATER
EQUIVALENT REPORTED.

1109 AM HEAVY SNOW PORTOLA 39.80N 120.47W
12/18/2010 M10.0 INCH PLUMAS CA CO-OP OBSERVER

24 HOUR SNOWFALL TOTAL AT 4850 FEET. OBSERVER REPORTED
1.85 INCHES OF LIQUID EQUIVALENT.

1110 AM HEAVY SNOW RENO 39.54N 119.82W
12/18/2010 M5.0 INCH WASHOE NV OTHER FEDERAL

24 HOUR SNOWFALL TOTAL AT THE RENO-TAHOE INTERNATIONAL
AIRPORT. OBSERVER REPORTED 3 INCHES ON THE GROUND. WATER
EQUIVALENT WAS 0.44 INCHES.

1111 AM HEAVY SNOW 5 N RENO 39.61N 119.82W
12/18/2010 M6.0 INCH WASHOE NV OFFICIAL NWS OBS

24 HOUR SNOWFALL TOTAL WITH 5 INCHES ON THE GROUND AND
RAPIDLY MELTING. WATER EQIVALENT OF 0.56 INCHES WAS
RECORDED.

1130 AM HEAVY SNOW 1 N COLD SPRINGS VALLEY 39.68N 119.96W
12/18/2010 M6.0 INCH WASHOE NV TRAINED SPOTTER

24 HOUR SNOWFALL TOTAL WITH 0.46 INCHES OF WATER
EQUIVALENT REPORTED.

1140 AM HEAVY SNOW SPANISH SPRINGS 39.62N 119.72W
12/18/2010 E4.0 INCH WASHOE NV CO-OP OBSERVER

24 HOUR SNOWFALL TOTAL WITH 0.38 INCHES OF LIQUID
EQUIVALENT REPORTED.

1141 AM HEAVY SNOW TRUCKEE 39.33N 120.20W
12/18/2010 M12.0 INCH NEVADA CA CO-OP OBSERVER

24 HOUR SNOWFALL TOTAL WITH 2.17 INCHES OF WATER
EQUIVALENT REPORTED.


&&

$$

MCGUIRE

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KRAH [181936]: Preliminary Local Storm Report

NWUS52 KRAH 181936
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
235 PM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0235 PM SNOW RANDLEMAN 35.82N 79.80W
12/18/2010 E0.5 INCH RANDOLPH NC TRAINED SPOTTER

COVERING GRASSY SURFACES


&&

EVENT NUMBER RAH1000092

$$

JO

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KMFR [181545]: Preliminary Local Storm Report

NWUS56 KMFR 181545
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
745 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM HEAVY RAIN 4 NNW GRANTS PASS 42.50N 123.34W
12/18/2010 M1.10 INCH JOSEPHINE OR TRAINED SPOTTER

12 HOUR TOTAL.


&&

$$

WOODHEAD

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KKEY [181514]: Preliminary Local Storm Report

NWUS52 KKEY 181514
LSRKEY

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
1014 AM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0921 AM MARINE TSTM WIND 8 ENE FORT JEFFERSON AT 24.69N 82.77W
12/18/2010 M48 MPH GMZ075 XX C-MAN STATION

A WIND GUST OF 42 KNOTS...OR 48 MPH...FROM THE SOUTH WAS
REPORTED AT THE PULASKI SHOAL LIGHT CMAN STATION IN
ASSOCIATION WITH A PASSING LINE OF SHOWERS AND
THUNDERSTORMS.


&&

$$

TF

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KMQT [181458]: Preliminary Local Storm Report

NWUS53 KMQT 181458
LSRMQT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
958 AM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 6 N GREENLAND 46.87N 89.10W
12/18/2010 M6.1 INCH ONTONAGON MI CO-OP OBSERVER

24 HOUR SNOWFALL

0700 AM SNOW JACOBSVILLE 46.98N 88.41W
12/18/2010 M3.0 INCH HOUGHTON MI CO-OP OBSERVER

24 HOUR SNOWFALL

0700 AM SNOW 8 WSW ONTONAGON 46.82N 89.47W
12/18/2010 M5.0 INCH ONTONAGON MI CO-OP OBSERVER

24 HOUR SNOWFALL

0800 AM SNOW 1 S ONTONAGON 46.85N 89.31W
12/18/2010 M6.2 INCH ONTONAGON MI CO-OP OBSERVER

24 HOUR SNOWFALL

0800 AM SNOW TWIN LAKES 46.90N 88.83W
12/18/2010 M7.5 INCH HOUGHTON MI CO-OP OBSERVER

24 HOUR SNOWFALL

0815 AM SNOW LAURIUM 47.24N 88.44W
12/18/2010 M3.0 INCH HOUGHTON MI CO-OP OBSERVER

24 HOUR AND 12 HOUR SNOWFALL


&&

$$

PETRO

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KREV [181453]: Preliminary Local Storm Report

NWUS55 KREV 181453
LSRREV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
652 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1123 PM HEAVY SNOW 6 SW GARDNERVILLE 38.89N 119.82W
12/17/2010 M12.0 INCH DOUGLAS NV TRAINED SPOTTER

AT 5000 FEET IN THE FOOTHILLS

1130 PM HEAVY SNOW 2 SSE RENO 39.51N 119.80W
12/17/2010 M6.0 INCH WASHOE NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER IN SOUTH RENO REPORTED 6.0
INCHES OF TOTAL SNOWFALL IN THE PAST 18 HOURS SINCE 4 AM
FRIDAY.

1150 PM SNOW SE FALLON 39.47N 118.77W
12/17/2010 M4.5 INCH CHURCHILL NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER IN FALLON REPORTED A TOTAL OF
4.5 INCHES OF SNOWFALL SINCE THE SNOW BEGAN AROUND 230 AM
PST FRIDAY.

0329 AM HEAVY SNOW 5 S CARSON CITY 39.10N 119.76W
12/18/2010 M10.0 INCH DOUGLAS NV TRAINED SPOTTER

A STORM TOTAL SNOWFALL OF 10.0 INCHES AT AN ELEVATION OF
4800 FT.

0553 AM HEAVY SNOW RENO 39.54N 119.82W
12/18/2010 M11.0 INCH WASHOE NV TRAINED SPOTTER

A TRAINED WEATHER SPOTTER REPORTED 11.0 INCHES OF
SNOWFALL IN WEST RENO SINCE 300 AM FRIDAY MORNING.

0612 AM HEAVY SNOW 5 ENE INCLINE VILLAGE 39.28N 119.88W
12/18/2010 M19.0 INCH WASHOE NV PUBLIC

DIAMOND PEAK SKI RESORT REPORTED 19.0 INCHES OF NEW SNOW
IN THE PAST 24 HOURS.

0643 AM HEAVY SNOW 4 W TRUCKEE 39.33N 120.28W
12/18/2010 M15.0 INCH NEVADA CA PUBLIC

TAHOE DONNER SKI AREA REPORTED 15 INCHES OF NEW SNOW IN
THE PAST 24 HOURS.

0646 AM HEAVY SNOW 20 NW TAHOE CITY 39.37N 120.40W
12/18/2010 M15.0 INCH NEVADA CA PUBLIC

BOREAL SKI RESORT REPORTED 15 INCHES OF NEW SNOW IN THE
PAST 24 HOURS.


&&

$$

O'HARA

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KMFR [181449]: Preliminary Local Storm Report

NWUS56 KMFR 181449
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
649 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0605 AM NON-TSTM WND GST 2 NE VALLEY FALLS 42.36N 120.25W
12/18/2010 M59.00 MPH LAKE OR PUBLIC

WIND GUST OCCURRED AT 450AM PST. WIND CURRENTLY SOUTH 26
MPH.

0605 AM HEAVY RAIN 1 SSW OBRIEN 42.06N 123.71W
12/18/2010 M1.44 INCH JOSEPHINE OR TRAINED SPOTTER

24 HOUR TOTAL. MOST OF THE RAIN FELL SINCE 6 PM PST LAST
NIGHT.


&&

$$

WOODHEAD

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KSEW [181444]: Preliminary Local Storm Report

NWUS56 KSEW 181444
LSRSEW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
644 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 AM NON-TSTM WND GST 2 SE NORTH BEND 47.48N 121.76W
12/18/2010 M60.00 MPH KING WA TRAINED SPOTTER

WINDS 32 MPH WITH GUSTS TO 60 MPH. MANY LARGE TREES DOWN.
POWER IS OUT FOR MUCH OF THE UPPER SNOQUALMIE VALLEY.


&&

$$

GBP

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KJAX [181425]: Preliminary Local Storm Report

NWUS52 KJAX 181425
LSRJAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
925 AM EST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0923 AM WILDFIRE 3 NE MAXVILLE 30.23N 81.98W
12/18/2010 DUVAL FL PARK/FOREST SRVC

THE WILDFIRE IN SOUTHWEST DUVAL COUNTY IS NOW 80 PERCENT
CONTAINED.


&&

$$

MTRABERT

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KDLH [181356]: Preliminary Local Storm Report

NWUS53 KDLH 181356
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
756 AM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0600 AM SNOW INTERNATIONAL FALLS 48.59N 93.41W
12/18/2010 M1.5 INCH KOOCHICHING MN OFFICIAL NWS OBS

SNOW ENDED 0100 AM.

0600 AM SNOW 6 WNW DULUTH 46.83N 92.21W
12/18/2010 M0.4 INCH ST. LOUIS MN OFFICIAL NWS OBS

MEASURED AT NWS OFFICE.

0630 AM SNOW 2 W BAYFIELD 46.81N 90.86W
12/18/2010 M2.7 INCH BAYFIELD WI TRAINED SPOTTER

2.7 INCHES SINCE 12/17 AT 0300AM. 2.1 INCHES LAST 24
HOURS. 0.9 INCHES IN THE LAST 9 HOURS.

0700 AM SNOW 3 E ORR 48.06N 92.76W
12/18/2010 M0.8 INCH ST. LOUIS MN CO-OP OBSERVER

0700 AM SNOW ELY 47.91N 91.85W
12/18/2010 M1.5 INCH ST. LOUIS MN TRAINED SPOTTER

0700 AM SNOW 2 S NORTHOME 47.85N 94.27W
12/18/2010 M0.6 INCH ITASCA MN CO-OP OBSERVER

0702 AM SNOW KABETOGAMA 48.44N 93.03W
12/18/2010 M2.1 INCH ST. LOUIS MN CO-OP OBSERVER

24 HOUR TOTAL.

0702 AM SNOW EMBARRASS 47.66N 92.20W
12/18/2010 M1.0 INCH ST. LOUIS MN CO-OP OBSERVER


&&

$$

SGOHDE

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KMPX [181257]: Preliminary Local Storm Report

NWUS53 KMPX 181257
LSRMPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
657 AM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0618 AM SNOW LITTLE FALLS 45.98N 94.36W
12/18/2010 M1.0 INCH MORRISON MN TRAINED SPOTTER


&&

$$

AJZ

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 181248
SWODY1
SPC AC 181246

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0646 AM CST SAT DEC 18 2010

VALID 181300Z - 191200Z

...NO SVR TSTM AREAS FORECAST...

...PACIFIC NW COAST...

POTENT VORTICITY MAXIMUM JUST OFFSHORE OF NWRN CA/ORE WILL PIVOT
NNEWD THROUGH ORE/WA IN ADVANCE OF VERY STRONG MID AND UPPER-LEVEL
JET STREAKS MOVING ONSHORE ACROSS NRN PARTS OF CA/NV. THIS PATTERN
EVOLUTION WILL RESULT IN SUBSTANTIAL HEIGHT FALLS AND ASSOCIATED
STEEPENING OF MIDLEVEL LAPSE RATES ACROSS THE REGION TODAY. WHEN
COUPLED WITH THE MOIST...ONSHORE FLOW IN THE LOW LEVELS...LOCAL
ENVIRONMENT W OF THE COASTAL RANGES IS EXPECTED TO BECOME MARGINALLY
UNSTABLE WITH MUCAPE OF A COUPLE HUNDRED J/KG.

LATEST MESOANALYSIS INDICATES A WELL-DEFINED PRESSURE RISE-FALL
COUPLET FROM THE NRN CA/SRN ORE COASTS NNEWD THROUGH THE LOWER
COLUMBIA RIVER VALLEY INTO WRN WA...INDICATIVE OF THE STRONG DYNAMIC
FORCING FOR ASCENT ATTENDANT TO THE ABOVE-MENTIONED SHORT WAVE
TROUGH. WIDELY SCATTERED TSTMS ARE BEGINNING TO AFFECT COASTAL
LOCATIONS AROUND CEC OWING TO THE ONSHORE FLUX OF A WARMER...MORE
MOIST AIR MASS WITHIN THE VEERED LOW-LEVEL WIND FIELD.

EXPECT A SIMILAR TREND TO CONTINUE NWD ALONG THE ORE COAST TODAY AS
ONSHORE FLOW IS ENHANCED IN WAKE OF LEAD SHORT WAVE TROUGH. GIVEN
THE COLD THERMODYNAMIC PROFILES AND STEEPENING LAPSE RATES SOME HAIL
WILL BE POSSIBLE WITH THE MOST INTENSE STORMS. VERTICAL SHEAR WILL
REMAIN RATHER STRONG AND SUPPORTIVE OF SOME UPDRAFT ROTATION. AS
SUCH...A RISK FOR LOCALLY STRONG WIND GUSTS AND PERHAPS A BRIEF
TORNADO WILL EXIST THROUGH THIS AFTERNOON.

...CNTRL/SRN FL PENINSULA...

SHORT WAVE TROUGH CURRENTLY TRANSLATING EWD THROUGH THE LOWER MS
VALLEY AND N-CNTRL GULF BASIN WILL CONTINUE EWD THIS
PERIOD...EVENTUALLY MOVING THROUGH THE SERN STATES...INCLUDING THE
FL PENINSULA LATE TONIGHT INTO SUNDAY MORNING. AN ASSOCIATED
SURFACE LOW WILL CONCURRENTLY CONSOLIDATE OVER THE ERN GULF BEFORE
MOVING ACROSS THE CNTRL PENINSULA LATER THIS AFTERNOON INTO
EVENING.

THE 12Z MIA SOUNDING AND SATELLITE-DERIVED PW IMAGERY INDICATE THAT
THE AIR MASS ACROSS THE SRN PENINSULA HAS MOISTENED CONSIDERABLY
OVER THE PAST 12-HRS WITH BOUNDARY LAYER DEW POINTS IN THE MID/UPPER
60S AND PW VALUES APPROACHING 1.2 INCHES. EXPECT THIS MORE MOIST
AIR MASS/EFFECTIVE WARM FRONT TO DEVELOP NWD TODAY IN ADVANCE OF
SURFACE LOW WITH ENVIRONMENT GRADUALLY DESTABILIZING WITH AFTERNOON
MLCAPE VALUES APPROACHING 500-1000 J/KG.

BAND OF TSTMS APPROXIMATELY 80 NM W OF EYW WILL LIKELY BEGIN TO
AFFECT THE KEYS AND SWRN PENINSULA BY LATE MORNING/AFTERNOON WITH
ADDITIONAL STORMS FORMING DURING THE PEAK OF THE DIURNAL HEATING
CYCLE ALONG AND S OF SURFACE LOW TRACK WHERE LOW-LEVEL CONVERGENCE
AND INSTABILITY WILL BE MAXIMIZED. FORECAST SOUNDINGS SUGGEST THAT
LOW-LEVEL WIND FIELD WILL REMAIN BACKED MOST NOTABLY INVOF
DEVELOPING E COAST SEA-BREEZE...RESULTING IN MODEST LOW-LEVEL SHEAR
AND AROUND 35 KT OF EFFECTIVE BULK SHEAR. GIVEN SETUP APPEARS AT
LEAST SUPPORTIVE OF A FEW STRONG STORMS LATER TODAY WITH A THREAT
FOR LOCALLY STRONG WIND GUSTS AND PERHAPS A BRIEF TORNADO.

..MEAD/STOPPKOTTE.. 12/18/2010

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KMEG [181211]: Preliminary Local Storm Report

NWUS54 KMEG 181211
LSRMEG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
610 AM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0600 AM SNOW 3 NE WHITEHAVEN 35.05N 90.00W
12/18/2010 M0.3 INCH SHELBY TN OFFICIAL NWS OBS

0.3 INCHES OF SNOW AT MEMPHIS INTERNATIONAL AIRPORT WITH
0.02 INCHES WATER EQUIVALENT.


&&

$$

BORGHOFF

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KHNX [181038]: Preliminary Local Storm Report

NWUS56 KHNX 181038
LSRHNX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
238 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0233 AM FLOOD 5 ESE BAKERSFIELD 35.33N 118.92W
12/18/2010 KERN CA LAW ENFORCEMENT

CHP REPORTED ROADWAY FLOODING ON SR 184 AT HALLELUIAH ST.

&&

$$

BSO

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KHNX [180950]: Preliminary Local Storm Report

NWUS56 KHNX 180950
LSRHNX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
150 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0738 PM FLOOD RIVERKERN 35.78N 118.43W
12/17/2010 KERN CA LAW ENFORCEMENT

CHP REPORTED ROCK SLIDE ON SIERRA WAY JUST SOUTH OF
COWBELLE ROAD.

0914 PM FLOOD 5 NE TULARE 36.25N 119.28W
12/17/2010 TULARE CA LAW ENFORCEMENT

CHP REPORTED LOCAL ROADWAY FLOODING NORTHEAST OF TULARE.

0922 PM FLOOD 10 NNW BAKERSFIELD 35.49N 119.07W
12/17/2010 KERN CA LAW ENFORCEMENT

CHP REPORTED ROADWAY FLOODING AT INTERSECTION ON 7TH
STANDARD RD AT CALLOWAY DR.

0951 PM FLOOD 13 N FRESNO 36.97N 119.79W
12/17/2010 MADERA CA LAW ENFORCEMENT

CHP REPORTED ROADWAY FLOODING IN MADERA COUNTY ON AVE 9
AT ROAD 40 1/2.

1003 PM FLOOD 4 SSW SELMA 36.52N 119.64W
12/17/2010 FRESNO CA LAW ENFORCEMENT

CHP REPORTED ROADWAY FLOODING IN NORTHBOUND LANE ON SR 43
JUST NORTH OF CONEJO AVE.

1005 PM FLOOD 3 WNW OAKHURST 37.35N 119.70W
12/17/2010 MADERA CA LAW ENFORCEMENT

CHP REPORTED MUD OR ROCK SLIDE ON SR 49 AT HARMONY LANE.

1020 PM FLOOD 5 NE MARIPOSA 37.55N 119.92W
12/17/2010 MARIPOSA CA LAW ENFORCEMENT

CHP REPORTED MUD OR ROCK SLIDE ON SR 140 AT PONDEROSA
WAY.

1148 PM FLOOD 5 E SQUAW VALLEY 36.70N 119.10W
12/17/2010 FRESNO CA LAW ENFORCEMENT

CHP REPORTED BOULDER WITH 2 TO 3 FT DIAMETER ON ROAD ON
SR 180 NEAR MILE MARKER 101.

0110 AM FLOOD 2 SSE MARIPOSA 37.47N 119.97W
12/18/2010 MARIPOSA CA LAW ENFORCEMENT

CHP REPORTED OAK TREE BLOCKING BOTH LANES OF SR 49 AT
STOCKTON CREEK RD.


&&

$$

BSO

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 180939
SWOD48
SPC AC 180938

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0338 AM CST SAT DEC 18 2010

VALID 211200Z - 261200Z

...DISCUSSION...
QUASI-ZONAL PATTERN EXPECTED ACROSS MOST OF CONUS THROUGH MOST OF
PERIOD...IN BETWEEN AREAS OF MEAN TROUGHING OVER NERN PAC AND NWRN
ATLANTIC. SEVERAL SHORTWAVE PERTURBATIONS WILL TRAVERSE STG FLOW
BELT...MOST AMPLIFIED OF WHICH IS FCST TO MOVE ASHORE CA AROUND MID
DAY-5/22ND-23RD. ALTHOUGH DIFFERING IN STRENGTH...DETERMINISTIC
ECMWF/UKMET/SPECTRAL ARE REMARKABLY CONSISTENT WITH TIMING OF THIS
FEATURE ACROSS CENTRAL/SRN HIGH PLAINS BY DAY-7/23RD-24TH.
CONSIDERABLY MORE SPREAD IS EVIDENT AMONG MREF MEMBERS...ROUGHLY
HALF OF WHICH AT LEAST LOOSELY MATCH OPERATIONAL MODELS. UNDER THIS
SCENARIO...CYCLOGENESIS IS LIKELY OVER PORTIONS CENTRAL/SRN PLAINS
DAY-7...SHIFTING EWD ACROSS MID MS VALLEY DAY-8/24TH-25TH...ALONG
WITH STG/PRECURSORY LOW-LEVEL WAA AND POTENTIAL FOR TSTMS BOTH DAYS.
THEIR SEVERITY...HOWEVER...IS IN MAJOR DOUBT DUE TO STRENGTH OF
ANTECEDENT LOW-LEVEL RIDGING OVER GULF AND LIKELY INCOMPLETE NATURE
OF MARINE MODIFICATION...RESULTING IN LACK OF ROBUST MOISTURE.

..EDWARDS.. 12/18/2010

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KMEG [180853]: Preliminary Local Storm Report

NWUS54 KMEG 180853
LSRMEG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
253 AM CST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0230 AM SNOW MIDTOWN MEMPHIS 35.13N 89.98W
12/18/2010 M0.5 INCH SHELBY TN TRAINED SPOTTER

0250 AM SNOW 2 N GERMANTOWN 35.12N 89.79W
12/18/2010 M0.4 INCH SHELBY TN OFFICIAL NWS OBS

MEASURED AT THE NWS OFFICE.


&&

$$

BORGHOFF

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KMFR [180843]: Preliminary Local Storm Report

NWUS56 KMFR 180843
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1243 AM PST SAT DEC 18 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1239 AM SNOW ESE MOUNT SHASTA 41.32N 122.31W
12/18/2010 M1.0 INCH SISKIYOU CA TRAINED SPOTTER

SLUSHY 1 INCH OF ACCUMULATION SINCE SNOW BEGAN AROUND
SUNSET. CURRENTLY 31 DEGREES. ELEVATION 3700 FEET.


&&

$$

WOODHEAD

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KSEW [180750]: Preliminary Local Storm Report

NWUS56 KSEW 180750
LSRSEW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1149 PM PST FRI DEC 17 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0850 PM NON-TSTM WND GST 4 NNE ENUMCLAW 47.25N 121.93W
12/17/2010 E45.00 MPH KING WA TRAINED SPOTTER

SUSTAINED WIND 30 MPH WITH GUSTS TO 45 MPH.

1020 PM NON-TSTM WND GST 3 ESE NORTH BEND 47.47N 121.74W
12/17/2010 M50.00 MPH KING WA TRAINED SPOTTER

EAST WINDS 25 MPH GUSTING TO 50 MPH. NEARBY POWER
OUTAGES.

1035 PM NON-TSTM WND GST 2 N ENUMCLAW 47.24N 121.97W
12/17/2010 M62.00 MPH KING WA TRAINED SPOTTER

SE WIND 35 MPH WITH GUSTS TO 62 MPH.


&&

$$

GBP

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KPQR [180714]: Preliminary Local Storm Report

NWUS56 KPQR 180714
LSRPQR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
1114 PM PST FRI DEC 17 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1100 PM NON-TSTM WND DMG HOCKINSON 45.73N 122.48W
12/17/2010 CLARK WA NWS EMPLOYEE

POWELL ROAD IN HOCKINSON CLOSED DUE TO A LARGE, THOUGH OF
UNDETERMINED SIZE, OLD GROWTH FIR TREE DOWN OVER THE
ROAD.


&&

$$

KDONOFRI

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 180709
SWODY3
SPC AC 180708

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0108 AM CST SAT DEC 18 2010

VALID 201200Z - 211200Z

...SYNOPSIS...
BELT OF STG MID-UPPER LEVEL FLOW WILL BE MAINTAINED FROM W COAST
ACROSS CENTRAL CONUS TO MID-ATLANTIC/CAROLINAS REGIONS THROUGH
DAY-2...IN BETWEEN REGIMES OF TROUGHING OFFSHORE PAC COAST AND OVER
NRN MID-ATLANTIC/QUE. SHORTWAVE TROUGH...FCST TO MOVE ONSHORE NRN
CA AS LOW-AMPLITUDE PERTURBATION DAY-2...WILL EJECT FROM SRN RIM OF
NERN PAC CYCLONE AND BECOME EMBEDDED IN QUASI-ZONAL FLOW BELT OVER
NRN GREAT BASIN BY BEGINNING OF DAY-3. THIS PERTURBATION THEN IS
PROJECTED TO REACH SD BY 20/18-21/00Z TIME FRAME...WITH MESOSCALE
DIFFERENCES IN TIMING/AMPLITUDE BY THEN AMONG VARIOUS
DETERMINISTIC/SREF PROGS.

IN RESPONSE...SFC CYCLOGENESIS FCST BY EARLY IN PERIOD OVER CENTRAL
HIGH PLAINS. MAIN SFC LOW SHOULD SHIFT ENEWD ACROSS MID-UPPER MS
VALLEY REGION BY 21/12Z...WITH COLD FRONT SWWD ACROSS OK AND NW TX.
ALTHOUGH STG LOW-LEVEL WAA REGIME WILL OCCUR AHEAD OF LOW-LEVEL
CYCLONE AND COLD FRONT...MOISTURE RETURN WILL BE TOO SCANT TO
SUPPORT TSTMS.

MEANWHILE...ENTIRE W COAST SHOULD REMAIN UNDER MOIST...SWLY-WSWLY
FLOW IN MIDLEVELS...FOLLOWING SW-NE PASSAGE OF SHORTWAVE TROUGH
ACROSS WA COAST EARLY IN PERIOD. ISOLATED TO WIDELY SCATTERED
THUNDER MAY BE POSSIBLE NEAR COAST IN WEAKLY CAPPED AND MARGINALLY
UNSTABLE MARINE AIR...PRIMARILY N OF UPPER JET CORE FROM SFO BAY
AREA NWD. SVR POTENTIAL APPEARS TOO WEAK/CONDITIONAL FOR
PROBABILITIES AOA 5%.

..EDWARDS.. 12/18/2010

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