KVEF [190453]: Preliminary Local Storm Report

NWUS55 KVEF 190453
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
853 PM PST TUE DEC 18 2007

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

0805 PM HEAVY SNOW ASPENDELL 37.23N 118.58W
12/18/2007 M13.0 INCH INYO CA TRAINED SPOTTER

&&

$$

MORGAN

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KOTX [190250]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 190250
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
650 PM PST TUE DEC 18 2007

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

0750 AM HEAVY SNOW LEAVENWORTH 47.59N 120.66W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1947 FT. SPOTTER CH34. SNOWING HARD AT TIME OF
OBS.

1045 AM HEAVY SNOW 15 NW EPHRATA 47.47N 119.76W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2300. SPOTTER GR17. STILL SNOWING AT TIME OF
OBS.

1111 AM HEAVY SNOW 3 NNW WENATCHEE 47.47N 120.35W
12/18/2007 M4.5 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH74. SNOW FELL SINCE MIDNIGHT

1111 AM HEAVY SNOW MALAGA 47.37N 120.20W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 630 FT. SPOTTER CH60. SNOW FELL SINCE MIDNIGHT.

1130 AM HEAVY SNOW OMAK 48.41N 119.53W
12/18/2007 E4.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 960 FT. SPOTTER OK101. MODERATE SNOW STILL
FALLING.

1145 AM HEAVY SNOW 5 N BREWSTER 48.18N 119.78W
12/18/2007 M5.0 INCH OKANOGAN WA AMATEUR RADIO

ELEVATION 1300 FT. SPOTTER OK10. FELL OVER THE LAST 6
HOURS.

1210 PM HEAVY SNOW CASHMERE 47.52N 120.47W
12/18/2007 M4.8 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH5. SNOW FELL MAINLY THROUGH
AM HOURS TUESDAY.

1212 PM HEAVY SNOW 1 NNE WATERVILLE 47.66N 120.06W
12/18/2007 M4.7 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2640 FT. SPOTTER DOUG3. SNOW MAINLY FELL AM
HOURS TUESDAY.

1220 PM HEAVY SNOW 2 NW CHELAN 47.87N 120.06W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1267 FT. SPOTTER CH66. SNOW FELL MAINLY THROUGH
TUESDAY AM HOURS.

0130 PM HEAVY SNOW 3 NW MAZAMA 48.61N 120.43W
12/18/2007 M5.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 2260 FT. SPOTTER OK4.

0130 PM HEAVY SNOW MANSFIELD 47.81N 119.64W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2274 FT. SPOTTER DOUG30. SNOW ENDED.

0132 PM HEAVY SNOW MALOTT 48.27N 119.71W
12/18/2007 M7.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 2800 FT. SPOTTER OK15. SNOW FELL SINCE
MIDNIGHT.

0145 PM HEAVY SNOW 10 E TONASKET 48.70N 119.22W
12/18/2007 M4.5 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 3397 FT. SPOTTER OK51. SNOW HAS ENDED.

0200 PM HEAVY SNOW 2 ENE OMAK 48.43N 119.48W
12/18/2007 M4.5 INCH OKANOGAN WA TRAINED SPOTTER

OK45 1100 FT

0315 PM HEAVY SNOW 3 W CHELAN 47.84N 120.09W
12/18/2007 M4.0 INCH CHELAN WA TRAINED SPOTTER

CH36 1400 FT

0615 PM HEAVY SNOW 2 NE WENATCHEE 47.45N 120.29W
12/18/2007 M5.0 INCH DOUGLAS WA TRAINED SPOTTER

DOUG 42 ELE 920 FT STORM TOTAL

&&

$$

RB

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KPDT [190227]: Preliminary Local Storm Report

NWUS56 KPDT 190227
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
627 PM PST TUE DEC 18 2007

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

0626 PM SNOW 1 N YAKIMA 46.59N 120.54W
12/18/2007 E2.1 INCH YAKIMA WA TRAINED SPOTTER

&&

$$

VPAPOL

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KOTX [190224]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 190224
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
624 PM PST TUE DEC 18 2007

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

0750 AM HEAVY SNOW LEAVENWORTH 47.59N 120.66W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1947 FT. SPOTTER CH34. SNOWING HARD AT TIME OF
OBS.

1045 AM HEAVY SNOW 15 NW EPHRATA 47.47N 119.76W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2300. SPOTTER GR17. STILL SNOWING AT TIME OF
OBS.

1111 AM HEAVY SNOW 3 NNW WENATCHEE 47.47N 120.35W
12/18/2007 M4.5 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH74. SNOW FELL SINCE MIDNIGHT

1111 AM HEAVY SNOW MALAGA 47.37N 120.20W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 630 FT. SPOTTER CH60. SNOW FELL SINCE MIDNIGHT.

1130 AM HEAVY SNOW OMAK 48.41N 119.53W
12/18/2007 E4.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 960 FT. SPOTTER OK101. MODERATE SNOW STILL
FALLING.

1145 AM HEAVY SNOW 5 N BREWSTER 48.18N 119.78W
12/18/2007 M5.0 INCH OKANOGAN WA AMATEUR RADIO

ELEVATION 1300 FT. SPOTTER OK10. FELL OVER THE LAST 6
HOURS.

1210 PM HEAVY SNOW CASHMERE 47.52N 120.47W
12/18/2007 M4.8 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH5. SNOW FELL MAINLY THROUGH
AM HOURS TUESDAY.

1212 PM HEAVY SNOW 1 NNE WATERVILLE 47.66N 120.06W
12/18/2007 M4.7 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2640 FT. SPOTTER DOUG3. SNOW MAINLY FELL AM
HOURS TUESDAY.

1220 PM HEAVY SNOW 2 NW CHELAN 47.87N 120.06W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1267 FT. SPOTTER CH66. SNOW FELL MAINLY THROUGH
TUESDAY AM HOURS.

0130 PM HEAVY SNOW 3 NW MAZAMA 48.61N 120.43W
12/18/2007 M5.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 2260 FT. SPOTTER OK4.

0130 PM HEAVY SNOW MANSFIELD 47.81N 119.64W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2274 FT. SPOTTER DOUG30. SNOW ENDED.

0132 PM HEAVY SNOW MALOTT 48.27N 119.71W
12/18/2007 M7.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 2800 FT. SPOTTER OK15. SNOW FELL SINCE
MIDNIGHT.

0145 PM HEAVY SNOW 10 E TONASKET 48.70N 119.22W
12/18/2007 M4.5 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 3397 FT. SPOTTER OK51. SNOW HAS ENDED.

0200 PM HEAVY SNOW 2 ENE OMAK 48.43N 119.48W
12/18/2007 M4.5 INCH OKANOGAN WA TRAINED SPOTTER

OK45 1100 FT

0315 PM HEAVY SNOW 3 W CHELAN 47.84N 120.09W
12/18/2007 M4.0 INCH CHELAN WA TRAINED SPOTTER

CH36 1400 FT

&&

$$

RB

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KMFR [190159]: Preliminary Local Storm Report

NWUS56 KMFR 190159
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
559 PM PST TUE DEC 18 2007

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

1158 AM HEAVY RAIN 4 NNE WILDERVILLE 42.43N 123.44W
12/18/2007 M1.65 INCH JOSEPHINE OR TRAINED SPOTTER

24 HR 6PM-6PM

&&

$$

SVEN

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KMFR [190109]: Preliminary Local Storm Report

NWUS56 KMFR 190109
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
508 PM PST TUE DEC 18 2007

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

0506 PM HEAVY RAIN 3 S MCCLOUD 41.22N 122.14W
12/18/2007 M2.28 INCH SISKIYOU CA TRAINED SPOTTER

5PM-5PM LIQUID EQUIVALENT FOR 6 INCHES NEW SNOW

&&

$$

SVEN

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KMFR [190107]: Preliminary Local Storm Report

NWUS56 KMFR 190107
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
507 PM PST TUE DEC 18 2007

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

0506 PM HEAVY SNOW 3 S MCCLOUD 41.22N 122.14W
12/18/2007 M6.0 INCH SISKIYOU CA TRAINED SPOTTER

5PM-5PM

&&

$$

SVEN

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 190046
SWODY1
SPC AC 190044

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0644 PM CST TUE DEC 18 2007

VALID 190100Z - 191200Z

..NO TSTM AREAS FORECAST...

..SYNOPSIS...
UPPER SHORT-WAVE TROUGH WILL CONTINUE MOVING ONSHORE ACROSS THE
WEST...WITH A FEW LIGHTNING STRIKES INDICATED OVER THE PAST SEVERAL
HOURS WELL OFF THE SRN CA COAST. LACK OF INLAND INSTABILITY SHOULD
PRECLUDE ANY THUNDER POTENTIAL ONSHORE AS THE TROUGH ADVANCES EWD.

ELSEWHERE...A SECOND SHORT-WAVE TROUGH WILL CONTINUE MOVING INTO THE
GREAT LAKES/MIDWEST/TN VALLEY REGION. THOUGH
MOIST/MINIMALLY-UNSTABLE AIRMASS IS EVIDENT OVER THE WRN
GULF...SUBSIDENCE IN THE WAKE OF THE AFOREMENTIONED TROUGH AS IT
PASSES N AND E OF THE GULF SHOULD PRECLUDE ANY APPRECIABLE ONSHORE
THUNDER POTENTIAL.

.GOSS.. 12/19/2007

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KHNX [190004]: Preliminary Local Storm Report...summary

NWUS56 KHNX 190004
LSRHNX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
404 PM PST TUE DEC 18 2007

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

0800 AM SNOW LODGEPOLE 36.60N 118.73W
12/18/2007 M4.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6735 FEET.

0800 AM SNOW GRANT GROVE 36.74N 118.96W
12/18/2007 M2.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6600 FEET.

0850 AM SNOW TUOLUMNE MEADOWS 37.87N 119.36W
12/18/2007 M8.0 INCH TUOLUMNE CA PARK/FOREST SRVC

MEASURED AT 8600 FEET. WATER EQUIVALENT WAS 0.35 INCHES.

1230 PM SNOW YOSEMITE VALLEY 37.74N 119.60W
12/18/2007 E4.0 INCH MARIPOSA CA NWS EMPLOYEE

ON THE VALLEY FLOOR AROUND 4000 FEET IN ELEVATION.

0100 PM HEAVY SNOW UPPER BURNT CORRAL 37.18N 118.94W
12/18/2007 E24.0 INCH FRESNO CA MESONET

9700 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM HEAVY SNOW BLACKCAP BASIN SNOTEL 37.07N 118.77W
12/18/2007 E19.0 INCH FRESNO CA MESONET

10300 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM HEAVY SNOW VOLCANIC KNOB SNOTEL 37.39N 118.90W
12/18/2007 E18.6 INCH FRESNO CA MESONET

10500 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM SNOW KAISER POINT SNOTEL 37.30N 119.10W
12/18/2007 E12.0 INCH FRESNO CA MESONET

9200 FEET. ESTIMATED SNOW DEPTH.

0100 PM HEAVY SNOW OSTRANDER LAKE SNOTEL 37.64N 119.55W
12/18/2007 E18.5 INCH MARIPOSA CA MESONET

8200 FEET. SNOTEL ESTIMATE USING A 18 TO 1 RATIO.

0100 PM HEAVY SNOW TENAYA LAKE SNOTEL 37.84N 119.45W
12/18/2007 E16.9 INCH MARIPOSA CA MESONET

8150 FEET. SNOTEL ESTIMATE USING A 18 TO 1 RATIO.

0100 PM HEAVY SNOW PARADISE MEADOW SNOTEL 38.05N 119.67W
12/18/2007 E21.0 INCH TUOLUMNE CA MESONET

7650 FEET. SNOTEL ESTIMATE USING A 15 TO 1 RATIO.

0100 PM HEAVY SNOW CHILKOOT MEADOW SNOTEL 37.41N 119.49W
12/18/2007 E12.6 INCH MADERA CA MESONET

7150 FEET. SNOTEL ESTIMATE USING A 15 TO 1 RATIO.

0100 PM HEAVY SNOW HUNTINGTON LAKE SNOTEL 37.23N 119.22W
12/18/2007 E12.6 INCH FRESNO CA MESONET

7000 FEET. SNOTEL ESTIMATE USING A 15 TO 1 RATIO.

0100 PM SNOW UPPER TYNDALL CREEK 36.65N 118.40W
12/18/2007 E6.0 INCH TULARE CA MESONET

11400 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM HEAVY SNOW CHAGOOPA PLATEAU SNOTEL 36.50N 118.44W
12/18/2007 E14.6 INCH TULARE CA MESONET

10300 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM SNOW TUNNEL GUARD STATION 36.37N 118.29W
12/18/2007 E7.0 INCH TULARE CA MESONET

8900 FEET. SNOTEL ESTIMATE USING A 18 TO 1 RATIO.

0100 PM HEAVY SNOW CHARLOTTE LAKE SNOTEL 36.80N 118.42W
12/18/2007 E14.4 INCH FRESNO CA MESONET

10400 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

&&
SNOWFALL TOTALS IN THE LAST 24 HOURS.
$$

STACHELSKI

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KHNX [190001]: Preliminary Local Storm Report...summary

NWUS56 KHNX 190001
LSRHNX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
400 PM PST TUE DEC 18 2007

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

0800 AM SNOW GRANT GROVE 36.74N 118.96W
12/18/2007 M2.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6600 FEET.

0800 AM SNOW LODGEPOLE 36.60N 118.73W
12/18/2007 M4.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6735 FEET.

0850 AM SNOW TUOLUMNE MEADOWS 37.87N 119.36W
12/18/2007 M8.0 INCH TUOLUMNE CA PARK/FOREST SRVC

MEASURED AT 8600 FEET. WATER EQUIVALENT WAS 0.35 INCHES.

1230 PM SNOW YOSEMITE VALLEY 37.74N 119.60W
12/18/2007 E4.0 INCH MARIPOSA CA NWS EMPLOYEE

ON THE VALLEY FLOOR AROUND 4000 FEET IN ELEVATION.

0100 PM HEAVY SNOW CHARLOTTE LAKE SNOTEL 36.80N 118.42W
12/18/2007 E14.4 INCH FRESNO CA MESONET

10400 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM SNOW TUNNEL GUARD STATION 36.37N 118.29W
12/18/2007 E7.0 INCH TULARE CA MESONET

8900 FEET. SNOTEL ESTIMATE USING A 18 TO 1 RATIO.

0100 PM HEAVY SNOW CHAGOOPA PLATEAU SNOTEL 36.50N 118.44W
12/18/2007 E14.6 INCH TULARE CA MESONET

10300 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM SNOW UPPER TYNDALL CREEK 36.65N 118.40W
12/18/2007 E6.0 INCH TULARE CA MESONET

11400 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM HEAVY SNOW HUNTINGTON LAKE SNOTEL 37.23N 119.22W
12/18/2007 E12.6 INCH FRESNO CA MESONET

7000 FEET. SNOTEL ESTIMATE USING A 15 TO 1 RATIO.

0100 PM HEAVY SNOW CHILKOOT MEADOW SNOTEL 37.41N 119.49W
12/18/2007 E12.6 INCH MADERA CA MESONET

7150 FEET. SNOTEL ESTIMATE USING A 15 TO 1 RATIO.

0100 PM HEAVY SNOW PARADISE MEADOW SNOTEL 38.05N 119.67W
12/18/2007 E21.0 INCH TUOLUMNE CA MESONET

7650 FEET. SNOTEL ESTIMATE USING A 15 TO 1 RATIO.

0100 PM HEAVY SNOW TENAYA LAKE SNOTEL 37.84N 119.45W
12/18/2007 E16.9 INCH MARIPOSA CA MESONET

8150 FEET. SNOTEL ESTIMATE USING A 18 TO 1 RATIO.

0100 PM HEAVY SNOW OSTRANDER LAKE SNOTEL 37.64N 119.55W
12/18/2007 E18.5 INCH MARIPOSA CA MESONET

8200 FEET. SNOTEL ESTIMATE USING A 18 TO 1 RATIO.

0100 PM SNOW KAISER POINT SNOTEL 37.30N 119.10W
12/18/2007 E12.0 INCH FRESNO CA MESONET

9200 FEET. ESTIMATED SNOW DEPTH.

0100 PM HEAVY SLEET UPPER BURNT CORRAL 37.18N 118.94W
12/18/2007 E24.00 INCH FRESNO CA MESONET

9700 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM HEAVY SNOW VOLCANIC KNOB SNOTEL 37.39N 118.90W
12/18/2007 E18.6 INCH FRESNO CA MESONET

10500 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

0100 PM HEAVY SNOW BLACKCAP BASIN SNOTEL 37.07N 118.77W
12/18/2007 E19.0 INCH FRESNO CA MESONET

10300 FEET. SNOTEL ESTIMATE USING A 20 TO 1 RATIO.

&&
SNOWFALL TOTALS IN THE LAST 24 HOURS.
$$

STACHELSKI

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KVEF [182336]: Preliminary Local Storm Report

NWUS55 KVEF 182336
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
336 PM PST TUE DEC 18 2007

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

0335 PM HEAVY SNOW ASPENDELL 37.23N 118.58W
12/18/2007 M12.0 INCH INYO CA TRAINED SPOTTER

STILL SNOWING AT TIME OF REPORT

&&

$$

JH

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KPDT [182242]: Preliminary Local Storm Report

NWUS56 KPDT 182242
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
241 PM PST TUE DEC 18 2007

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

0900 AM SNOW 5 ENE THORP 47.10N 120.58W
12/18/2007 E2.5 INCH KITTITAS WA TRAINED SPOTTER

2.5 INCHES OF NEW SNOW WITH MODERATE SNOW OCCURING AT
TIME OF OBSERVATION

0905 AM SNOW 9 N ELLENSBURG 47.13N 120.55W
12/18/2007 E3.0 INCH KITTITAS WA TRAINED SPOTTER

3 INCHES OVERNIGHT

0905 AM HEAVY SNOW 8 NNW ECHO 45.85N 119.26W
12/18/2007 E10.0 INCH UMATILLA OR TRAINED SPOTTER

ESTIMATED 10 INCHES OF NEW SNOW IN 24 HOURS

0920 AM SNOW 14 NW TIETON 46.85N 120.95W
12/18/2007 E6.0 INCH YAKIMA WA TRAINED SPOTTER

SIX INCHES OF NEW SNOW. TOTAL SNOW FALL BETWEEN 11-13
INCHES.

0200 PM SNOW 4 WNW LA PINE 43.69N 121.58W
12/18/2007 E1.0 INCH DESCHUTES OR TRAINED SPOTTER

1 INCH OF SNOWFALL IN THE LAST 24 HOURS WITH RAIN
OCCURING DURING THE DAY

0200 PM SNOW SUNRIVER 43.87N 121.43W
12/18/2007 E1.0 INCH DESCHUTES OR CO-OP OBSERVER

MIX OF SNOW AND RAIN FOR THE PAST 24 HOURS LESS THAN 1
INCH NEW SNOW

&&

$$

DWEBER

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KMSO [182240]: Preliminary Local Storm Report

NWUS55 KMSO 182240
LSRMSO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
340 PM MST TUE DEC 18 2007

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

0334 PM HEAVY SNOW 20 N TROY 48.75N 115.89W
12/18/2007 M5.0 INCH LINCOLN MT PUBLIC

5 INCHES OF SNOW REPORTED TO HAVE FALLEN SINCE EARLY THIS
MORNING. THE SNOW IS STILL ACCUMULATING.

&&

$$

HENRY

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KOTX [182209]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 182209
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
208 PM PST TUE DEC 18 2007

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

0750 AM HEAVY SNOW LEAVENWORTH 47.59N 120.66W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1947 FT. SPOTTER CH34. SNOWING HARD AT TIME OF
OBS.

1045 AM HEAVY SNOW 15 NW EPHRATA 47.47N 119.76W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2300. SPOTTER GR17. STILL SNOWING AT TIME OF
OBS.

1111 AM HEAVY SNOW 3 NNW WENATCHEE 47.47N 120.35W
12/18/2007 M4.5 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH74. SNOW FELL SINCE MIDNIGHT

1111 AM HEAVY SNOW MALAGA 47.37N 120.20W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 630 FT. SPOTTER CH60. SNOW FELL SINCE MIDNIGHT.

1130 AM HEAVY SNOW OMAK 48.41N 119.53W
12/18/2007 E4.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 960 FT. SPOTTER OK101. MODERATE SNOW STILL
FALLING.

1145 AM HEAVY SNOW 5 N BREWSTER 48.18N 119.78W
12/18/2007 M5.0 INCH OKANOGAN WA AMATEUR RADIO

ELEVATION 1300 FT. SPOTTER OK10. FELL OVER THE LAST 6
HOURS.

1210 PM HEAVY SNOW CASHMERE 47.52N 120.47W
12/18/2007 M4.8 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH5. SNOW FELL MAINLY THROUGH
AM HOURS TUESDAY.

1212 PM HEAVY SNOW 1 NNE WATERVILLE 47.66N 120.06W
12/18/2007 M4.7 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2640 FT. SPOTTER DOUG3. SNOW MAINLY FELL AM
HOURS TUESDAY.

1220 PM HEAVY SNOW 2 NW CHELAN 47.87N 120.06W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1267 FT. SPOTTER CH66. SNOW FELL MAINLY THROUGH
TUESDAY AM HOURS.

0130 PM HEAVY SNOW 3 NW MAZAMA 48.61N 120.43W
12/18/2007 M5.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 2260 FT. SPOTTER OK4.

0130 PM HEAVY SNOW MANSFIELD 47.81N 119.64W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2274 FT. SPOTTER DOUG30. SNOW ENDED.

0132 PM HEAVY SNOW MALOTT 48.27N 119.71W
12/18/2007 M7.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 2800 FT. SPOTTER OK15. SNOW FELL SINCE
MIDNIGHT.

0145 PM HEAVY SNOW 10 E TONASKET 48.70N 119.22W
12/18/2007 M4.5 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 3397 FT. SPOTTER OK51. SNOW HAS ENDED.

&&

$$

SBODNAR

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KJAX [182144]: Preliminary Local Storm Report...corrected

NWUS52 KJAX 182144
LSRJAX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
444 PM EST TUE DEC 18 2007

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

0245 AM TORNADO 5 SE ALACHUA 29.73N 82.41W
12/16/2007 F1 ALACHUA FL NWS STORM SURVEY

PATH LENGTH WAS ESTIMATED AT 3/4 MILE AND AVERAGED ABOUT
200 YARDS WIDE. ESTIMATED MAX WINDS WERE 90-95 MPH.
NUMEROUS PINE TREES WERE SNAPPED. A FEW PINES WERE
UPROOTED. A PORTION OF A MASONRY WALL ON A SMALL FARM
OUTBUILDING WAS KNOCKED OVER AND THE METAL ROOF WAS
RIPPED OFF AND STREWN ACROSS A FIELD. A FARM TRUCK WAS
FLIPPED ON ITS SIDE NEAR THE OUTBUILDING. ANOTHER HOUSE
HAD A DAMAGED CARPORT...MINOR WALL DAMAGE...A TOPPLED TV
ANTENNA MAST...A LARGE PORTION OF THE SHINGLES STRIPPED
FROM ROOF.

&&

$$

CARROLL

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KMFR [181959]: Preliminary Local Storm Report

NWUS56 KMFR 181959
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1159 AM PST TUE DEC 18 2007

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

1158 AM HEAVY RAIN 2 NNE SELMA 42.30N 123.59W
12/18/2007 M1.50 INCH JOSEPHINE OR TRAINED SPOTTER

1200-1200 PST

&&

$$

SVEN

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 181955
SWODY1
SPC AC 181953

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0153 PM CST TUE DEC 18 2007

VALID 182000Z - 191200Z

..NO TSTM AREAS FORECAST...

..CA THROUGH PACIFIC NW...

AREAS OF SCATTERED SHOWERS WILL CONTINUE THIS AFTERNOON AND EVENING
ALONG PARTS OF THE WRN U.S. AS STEEPER LAPSE RATES ATTENDING UPPER
TROUGH MOVE INLAND. HOWEVER...INSTABILITY IS EXPECTED TO REMAIN
INSUFFICIENT FOR SIGNIFICANT LIGHTNING ACTIVITY.

..LOWER MS VALLEY THROUGH SERN STATES...

LOW LEVEL JET ATTENDING UPPER TROUGH CURRENTLY MOVING THROUGH THE MS
VALLEY WILL SHIFT EAST INTO THE TN VALLEY OVERNIGHT LEAVING WEAK WLY
LOW LEVEL FLOW OVER ERN TX AND THE LOWER MS VALLEY. DEWPOINTS IN THE
50S HAVE ADVECTED INTO SERN TX. HOWEVER...WITH LOW LEVEL WINDS
EXPECTED TO VEER AND WEAKEN...FURTHER BOUNDARY LAYER RECOVERY WILL
BE LIMITED TONIGHT. A FEW SHOWERS ARE CURRENTLY DEVELOPING OVER SERN
TX...BUT THIS ACTIVITY WILL REMAIN SHALLOW BELOW A STOUT INVERSION
PRESENT IN THE 850-700 MB LAYER. MOREOVER...LARGE SCALE SUBSIDENCE
IN WAKE OF EWD ADVANCING UPPER TROUGH WILL FURTHER LIMIT
THUNDERSTORM POTENTIAL TONIGHT.

.DIAL.. 12/18/2007

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KOTX [181954]: Preliminary Local Storm Report

NWUS56 KOTX 181954
LSROTX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
1153 AM PST TUE DEC 18 2007

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

0750 AM HEAVY SNOW LEAVENWORTH 47.59N 120.66W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1947 FT. SPOTTER CH34. SNOWING HARD AT TIME OF
OBS.

1007 AM HEAVY SNOW 2 NW CHELAN 47.87N 120.06W
12/18/2007 M4.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 1267 FT. SPOTTER CH66. HEAVY SNOW STILL
FALLING.

1045 AM HEAVY SNOW 15 NW EPHRATA 47.47N 119.76W
12/18/2007 M4.0 INCH DOUGLAS WA TRAINED SPOTTER

ELEVATION 2300. SPOTTER GR17. STILL SNOWING AT TIME OF
OBS.

1111 AM HEAVY SNOW 3 NNW WENATCHEE 47.47N 120.35W
12/18/2007 M4.5 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 900 FT. SPOTTER CH74. SNOW FELL SINCE MIDNIGHT

1111 AM HEAVY SNOW MALAGA 47.37N 120.20W
12/18/2007 M5.0 INCH CHELAN WA TRAINED SPOTTER

ELEVATION 630 FT. SPOTTER CH60. SNOW FELL SINCE MIDNIGHT.

1130 AM HEAVY SNOW OMAK 48.41N 119.53W
12/18/2007 E4.0 INCH OKANOGAN WA TRAINED SPOTTER

ELEVATION 960 FT. SPOTTER OK101. MODERATE SNOW STILL
FALLING.

1145 AM HEAVY SNOW 5 N BREWSTER 48.18N 119.78W
12/18/2007 M5.0 INCH OKANOGAN WA AMATEUR RADIO

ELEVATION 1300 FT. SPOTTER OK10. FELL OVER THE LAST 6
HOURS.

&&

$$

SBODNAR

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KVEF [181853]: Preliminary Local Storm Report

NWUS55 KVEF 181853
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1053 AM PST TUE DEC 18 2007

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

1030 AM SNOW ASPENDELL 37.23N 118.58W
12/18/2007 M6.0 INCH INYO CA TRAINED SPOTTER

SNOWING MODERATELY AT TIME OF REPORT

&&

$$

JH

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KHNX [181845]: Preliminary Local Storm Report...summary

NWUS56 KHNX 181845
LSRHNX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
1045 AM PST TUE DEC 18 2007

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

0800 AM SNOW LODGEPOLE 36.60N 118.73W
12/18/2007 M4.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6735 FEET.

0800 AM SNOW GRANT GROVE 36.74N 118.96W
12/18/2007 M2.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6600 FEET.

0850 AM SNOW TUOLUMNE MEADOWS 37.87N 119.36W
12/18/2007 M8.0 INCH TUOLUMNE CA PARK/FOREST SRVC

MEASURED AT 8600 FEET. WATER EQUIVALENT WAS 0.35 INCHES.

1030 AM SNOW YOSEMITE VALLEY 37.74N 119.60W
12/18/2007 E3.0 INCH MARIPOSA CA NWS EMPLOYEE

ON THE VALLEY FLOOR OVERNIGHT AT ABOUT 4100 FEET IN
ELEVATION.

&&
SNOWFALL REPORTS IN THE PAST 24 HOURS.
$$

STACHELSKI

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KMFR [181832]: Preliminary Local Storm Report

NWUS56 KMFR 181832
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1032 AM PST TUE DEC 18 2007

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

1031 AM HEAVY SNOW 4 SW WEED 41.37N 122.42W
12/18/2007 M6.0 INCH SISKIYOU CA TRAINED SPOTTER

24 HOUR ACCUMULATION FROM 7AM MONDAY MORNING TO 7AM
TUESDAY MORNING...

&&

$$

BUNKER

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KBOI [181819]: Preliminary Local Storm Report

NWUS55 KBOI 181819
LSRBOI

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE ID
1119 AM MST TUE DEC 18 2007

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

0755 AM SNOW 5 W IRONSIDE 44.33N 118.03W
12/18/2007 E1.0 INCH MALHEUR OR DEPT OF HIGHWAYS

ELDORADO PASS STATION REPORTED BLOWING AND DRIFTING SNOW
ON US 26 BETWEEN MP 218 AND 228. LIGHT SNOW FALLING. INFO
FROM THE OREGON DOT WEBSITE TRIP CHECK.COM

0756 AM SNOW BAKER 44.77N 117.83W
12/18/2007 U0.0 INCH BAKER OR DEPT OF HIGHWAYS

BAKER CITY STATION REPORTED BLOWING AND DRIFTING SNOW
BETWEEN 238 AND 306 WITH ICY ROAD CONDITIONS REPORTED
BETWEEN MILE POST 310 TO 325 ON I-84. LIGHT SNOW FALLING.
INFO FROM THE OREGON DOT WEBSITE TRIPCHECK.COM

0935 AM SNOW 4 SE BAKER 44.73N 117.77W
12/18/2007 U0.0 INCH BAKER OR DEPT OF HIGHWAYS

I-84 CLOSED DUE TO NUMEROUS WEATHER RELATED ACCIDENT
BETWEEN MILE POST 265 AND 360. INFO FROM OREGON DOT
WEBSITE TRIPCHECK.COM

&&

$$

JSMITH

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MESO: Mesoscale Discussion 2240

ACUS11 KWNS 181810
SWOMCD
SPC MCD 181810
CAZ000-182245-

MESOSCALE DISCUSSION 2240
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CST TUE DEC 18 2007

AREAS AFFECTED...CA SIERRA MOUNTAINS

CONCERNING...HEAVY SNOW

VALID 181810Z - 182245Z

HEAVY SNOW WILL DEVELOP SOUTHWARD ACROSS THE SIERRA MOUNTAINS
THROUGH MID/LATE AFTERNOON...WITH SNOW LEVELS LOWERING TO AROUND
4500-5000 FT. SNOW RATES OF 2 IN/HR ARE LIKELY IN THE HIGHER
ELEVATIONS...ESPECIALLY ABOVE 5500-6000 FT.

WATER VAPOR IMAGERY FEATURES SHORTWAVE TROUGH/COLD FRONT NEARING THE
NORTHERN CA COAST LATE THIS MORNING. IN ASSOCIATION WITH THIS
TROUGH...HEAVY SNOW IS EXPECTED TO INCREASE ACROSS THE SOUTHERN
SIERRA OWING TO LARGE SCALE FORCING FOR ASCENT/OROGRAPHIC
LIFT...WITH A MODEST LOWERING /500 FT TO PERHAPS 1000 FT / OF SNOW
LEVELS EXPECTED VIA THE ARRIVAL OF COLDER AIR ALOFT /REFERENCE -22C
AT 500 MB PER 12Z MEDFORD ORE OBSERVED RAOB/. LATEST MESONET/RAWS
OBSERVATIONS SUGGEST SNOW LEVELS ARE GENERALLY RUNNING AROUND
4500-5000 FT ACROSS THE NORTHERN SIERRA...WITH 5500-6000 FT ACROSS
THE SOUTHERN SIERRA. SIMILAR TO THIS MORNINGS /12Z/ OBSERVED RAOB AT
OAKLAND /0.85 INCHES/...GPS-DERIVED PRECIPITABLE WATER DATA DEPICT A
RELATIVELY MOIST PLUME OF 0.80-1.00 INCH PW VALUES SPREADING ACROSS
NORTHERN/CENTRAL CA. ALONG WITH AMPLE LIFT AND A RELATIVELY MOIST
AIRMASS...STEEPENING MID LEVEL LAPSE RATES WILL FURTHER PROMOTE
HEAVY SNOW...WITH 2 IN/HR RATES LIKELY IN THE HIGHEST ELEVATIONS OF
THE SOUTHERN SIERRA THIS AFTERNOON.

.GUYER.. 12/18/2007

..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

..NOTICE...
SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A
SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR
TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC
FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.

ATTN...WFO...VEF...REV...HNX...STO...

39802086 38461959 37801895 37451873 36741849 36111825
35861844 35891874 36611891 37041916 37281945 37801995
38632057 39422115

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 181723
SWODY2
SPC AC 181721

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1121 AM CST TUE DEC 18 2007

VALID 191200Z - 201200Z

..THERE IS A SLGT RISK OF SVR TSTMS FROM PARTS OF ERN TX INTO THE
LOWER MS VALLEY...

..SYNOPSIS...

SYNOPTIC PATTERN WILL REMAIN PROGRESSIVE THIS PERIOD. UPPER TROUGH
NOW APPROACHING WRN U.S. COAST WILL ADVANCE INTO THE CNTRL AND SRN
PLAINS WEDNESDAY NIGHT ACCOMPANIED BY A PACIFIC FRONT. THE FRONT
SHOULD EXTEND FROM A WEAK LEE LOW OVER OK SSWWD INTO SWRN TX BY THE
END OF THIS PERIOD. WARM FRONT WILL LIKELY DEVELOP INLAND AND EXTEND
SEWD FROM THE LOW THROUGH THE LOWER MS VALLEY WEDNESDAY NIGHT.

..ERN TX THROUGH LOWER MS VALLEY REGION...

SERN U.S. SURFACE HIGH WILL SHIFT EAST THROUGH WEDNESDAY...AND THIS
SHOULD EXPEDITE BOUNDARY LAYER RECOVERY OVER THE WRN GULF. LOW LEVEL
WINDS HAVE ALREADY SHIFTED TO SLY OFF THE TX COAST WITH LOW 60S
DEWPOINTS OBSERVED OVER DEEP SOUTH TX AND OFFSHORE. LOW LEVEL FLOW
WILL TEMPORARILY VEER TO WSWLY TUESDAY EVENING AS A LOW AMPLITUDE
UPPER TROUGH MOVES THROUGH THE PLAINS AND MS VALLEY. HOWEVER...THE
SLY LOW LEVEL JET WILL REDEVELOP OVER ERN TX WEDNESDAY EVENING IN
ADVANCE OF APPROACHING SHORTWAVE TROUGH. THIS WILL CONTRIBUTE TO
NEWD ADVECTION OF PARTIALLY MODIFIED GULF AIR. LOWER TO MID 60S
DEWPOINTS WILL LIKELY ADVECT INTO ERN TX AND THE LOWER MS VALLEY AS
THE WARM FRONT DEVELOPS INLAND. UPPER 60S DEWPOINTS WILL BE POSSIBLE
IN VICINITY OF THE TX AND LA COASTS. WSWLY FLOW DOWNSTREAM FROM
UPPER TROUGH WILL ADVECT STEEPER MID LEVEL LAPSE RATES OVER MOIST
AXIS...CONTRIBUTING TO DESTABILIZATION. MUCAPE FROM 500 TO 1000 J/KG
WILL BE POSSIBLE OVERNIGHT. INCREASING DEEP LAYER ASCENT AHEAD OF
UPPER TROUGH AND ALONG LOW LEVEL JET AXIS WILL RESULT IN DEVELOPMENT
OF THUNDERSTORMS WEDNESDAY NIGHT. MOST OF THE STORMS INLAND WILL
LIKELY BE ELEVATED ABOVE A SHALLOW SURFACE INVERSION WITH A THREAT
FOR MAINLY LARGE HAIL. HOWEVER...DEPENDING ON THE DEGREE OF MOISTURE
RETURN...SOME STORMS DEVELOPING NEAR THE COAST COULD BECOME SURFACE
BASED. EFFECTIVE SHEAR OF 40+ KT WILL BE SUPPORTIVE OF ORGANIZED
STORM STRUCTURES INCLUDING SUPERCELLS.

.DIAL.. 12/18/2007

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KHNX [181718]: Preliminary Local Storm Report

NWUS56 KHNX 181718
LSRHNX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
918 AM PST TUE DEC 18 2007

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

0800 AM SNOW LODGEPOLE 36.60N 118.73W
12/18/2007 M4.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6735 FEET.

0800 AM SNOW GRANT GROVE 36.74N 118.96W
12/18/2007 M2.0 INCH TULARE CA PARK/FOREST SRVC

MEASURED AT 6600 FEET.

0850 AM SNOW TUOLUMNE MEADOWS 37.87N 119.36W
12/18/2007 M8.0 INCH TUOLUMNE CA PARK/FOREST SRVC

MEASURED AT 8600 FEET. WATER EQUIVALENT WAS 0.35 INCHES.

&&
SNOWFALL REPORTS IN THE PAST 24 HOURS.
$$

STACHELSKI

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KMFR [181712]: Preliminary Local Storm Report

NWUS56 KMFR 181712
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
912 AM PST TUE DEC 18 2007

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

0910 AM HEAVY RAIN 5 NNE SELMA 42.34N 123.57W
12/18/2007 M1.34 INCH JOSEPHINE OR TRAINED SPOTTER

12 HOUR ACCUMULATION

&&

$$

BUNKER

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KPDT [181634]: Preliminary Local Storm Report

NWUS56 KPDT 181634
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
833 AM PST TUE DEC 18 2007

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

0810 AM SNOW 11 W GLENWOOD 46.02N 121.53W
12/18/2007 M6.0 INCH KLICKITAT WA TRAINED SPOTTER

6 INCHES OF NEW SNOW SINCE YESTERDAY

&&

$$

DWEBER

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 181623
SWODY1
SPC AC 181620

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1020 AM CST TUE DEC 18 2007

VALID 181630Z - 191200Z

..NO TSTM AREAS FORECAST...

A ZONAL FLOW PATTERN WILL REMAIN IN PLACE ACROSS THE CONUS THROUGH
TONIGHT AS SEVERAL LOW-AMPLITUDE SHORTWAVE TROUGHS MOVE EWD ACROSS
PARTS OF THE COUNTRY. THE MOST PRONOUNCED WAVE IS CURRENTLY MOVING
EWD INTO THE MS VALLEY REGION. A LOW-LEVEL JET ASSOCIATED WITH THIS
TROUGH WILL RESULT IN SOME MOISTURE RETURN NWD INTO SOUTHEAST TX
THIS AFTERNOON. WARM ADVECTION SHOULD RESULT IN ISOLATED TO
SCATTERED THUNDERSTORM DEVELOPMENT ALONG THE MOIST AXIS.
HOWEVER...MOST OF THE INSTABILITY SHOULD REMAIN OFFSHORE IN THE WRN
GULF OF MEXICO SUGGESTING THE THUNDERSTORM THREAT IN SE TX WILL NOT
BE GREAT ENOUGH TO WARRANT A TEN PERCENT CONTOUR.

FARTHER WEST...THE LATEST WATER VAPOR IMAGERY SHOWS A WELL-DEFINED
UPPER-LEVEL TROUGH 200 TO 300 STATUTE MILES OFF THE COAST OF CA. AS
THIS TROUGH APPROACHES THE COAST THIS AFTERNOON...LARGE-SCALE ASCENT
WILL MARKEDLY INCREASE. THIS COMBINED WITH COLD AIR ALOFT AND STEEP
LAPSE RATES MAY BE ENOUGH FOR A FEW ISOLATED STRIKES MAINLY OFF THE
COAST OF CNTRL CA LATE THIS AFTERNOON. ELSEWHERE...THUNDERSTORM
ACTIVITY IS NOT EXPECTED TODAY OR TONIGHT.

.BROYLES.. 12/18/2007

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KMFR [181544]: Preliminary Local Storm Report

NWUS56 KMFR 181544
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
744 AM PST TUE DEC 18 2007

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

0743 AM HEAVY RAIN N GOLD BEACH 42.41N 124.42W
12/18/2007 M1.90 INCH CURRY OR TRAINED SPOTTER

630 AM TO 630 AM. WIND GUST OF 53 MPH AT 3 AM.

&&

$$

GLASER

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KTAE [181512]: Preliminary Local Storm Report...corrected

NWUS52 KTAE 181512
LSRTAE

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1011 AM EST TUE DEC 18 2007

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

0500 PM FLASH FLOOD DALEVILLE 31.31N 85.71W
12/15/2007 DALE AL EMERGENCY MNGR

SIGNIFICANT LOCAL FLOODING FROM HEAVY RAINS VICINITY OF
INTERSECTION OF COUNTY ROAD 47 AND COUNTY ROAD 49. ROAD
BLOCKED

0555 PM TORNADO 2 NW BLAKELY 31.40N 84.96W
12/15/2007 F0 EARLY GA NWS STORM SURVEY

SEVERAL HOMES DAMAGED BY TORNADO JUST NW OF BLAKELY ON
HWY 39.

0700 PM FLOOD GENEVA 31.04N 85.88W
12/15/2007 GENEVA AL EMERGENCY MNGR

*** 1 INJ *** LOCAL FLOODING HIGHWAY 167 AND COUNTY ROAD
49. CAR ADDIDENT ON HIGHWAY 167 1 INJURY

0700 PM FLASH FLOOD DOWNTOWN DOTHAN 31.22N 85.39W
12/15/2007 HOUSTON AL EMERGENCY MNGR

SCATTERED REPORTS OF LOCAL FLOODING OF STREETS AND
INTERSECTIONS

0805 PM TSTM WND DMG 5 S BAINBRIDGE 30.83N 84.58W
12/15/2007 DECATUR GA EMERGENCY MNGR

SEVERAL TREES DOWN ON HWY 309 S.

0810 PM TSTM WND DMG 8 SSW HOGGARD MILL 31.11N 84.53W
12/15/2007 BAKER GA BROADCAST MEDIA

MANY TREES DOWN, 2 STORAGE SHEDS DESTROYED ON HWY 253
NEAR THE BAKER-DECATUR COUNTY LINE.

0840 PM TSTM WND DMG BACONTON 31.38N 84.16W
12/15/2007 MITCHELL GA EMERGENCY MNGR

*** 1 INJ *** MOBILE HOMES DAMGED, SEVERAL TREES DOWN,
AND ROOFS BLOWN OFF OF 4 HOUSES IN BACONTON AND NE
MITCHELL COUNTY.

0903 PM TORNADO 4 WNW SYLVESTER 31.55N 83.90W
12/15/2007 F0 WORTH GA NWS STORM SURVEY

INITIAL LOCATION OF TORNADO TOUCHDOWN IN WORTH COUNTY.
STORM SURVEY CONFIRMED THAT SEVERAL HOMES WERE DAMAGED
WEST OF SYLVESTER NEAR US-82 AND IN ANOTHER AREA EAST OF
THE SYLVESTER AIRPORT.

0906 PM TORNADO ISABELLA 31.57N 83.85W
12/15/2007 F0 WORTH GA NWS STORM SURVEY

MANY TREES DOWN, MANY MOBILE HOMES AND OTHER HOMES
DAMAGED IN ISABELLA BY EF0 TORNADO. SEVERAL IRRIGATION
SYSTEMS OVERTURNED. ONE PEANUT WAREHOUSE WAS MODERATELY
DAMAGED.

0920 PM TORNADO N ASHBURN 31.72N 83.65W
12/15/2007 F1 TURNER GA NWS STORM SURVEY

MANY TREES DOWN AND MOBILE HOMES DAMAGED BY EF1 TORNADO.
SEVERAL TREES FELLED ON HOUSES AND CARS. FOUR SINGLE-WIDE
MOBILE HOMES DESTROYED. 39 FRAMED HOMES DAMAGED. PEANUT
WAREHOUSE HEAVILY DAMAGED. NUMEROUS PINE TREES SNAPPED
JUST NORTHEAST OF ASHBURN.

0922 PM TORNADO 2 NE ASHBURN 31.73N 83.63W
12/15/2007 TURNER GA EMERGENCY MNGR

*** 1 FATAL *** 18-WHEELER DRIVING NORTH ON I-75 NEAR
MILE MARKER 83 WAS TOSSED OFF THE INTERSTATE BY EF1
TORNADO DOWN AN EMBANKMENT. ONLY OCCUPANT OF VEHICLE WAS
THE DRIVER WHO DIED ON SITE.

&&

$$

GODSEY

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KMFR [181506]: Preliminary Local Storm Report

NWUS56 KMFR 181506
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
706 AM PST TUE DEC 18 2007

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

0705 AM HEAVY RAIN 1 SSW OBRIEN 42.06N 123.71W
12/18/2007 M1.00 INCH JOSEPHINE OR TRAINED SPOTTER

MID TO 7AM. 2.50 SINCE 12/15.

&&

$$

GLASER

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 181300
SWODY1
SPC AC 181257

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0657 AM CST TUE DEC 18 2007

VALID 181300Z - 191200Z

..NO TSTM AREAS FORECAST...

..SYNOPSIS...
A PROGRESSIVE ZONAL REGIME WILL CONTINUE OVER THE CONUS INTO EARLY
WEDNESDAY. ONE SHORTWAVE TROUGH WILL MOVE INLAND OVER ORE/CA AND
THE GREAT BASIN DURING THE PERIOD...WHILE ANOTHER LOW AMPLITUDE WAVE
/WITH EMBEDDED VORTICITY CENTERS OVER MN AND ALONG THE KS/OK BORDER/
MOVES EWD TO THE GREAT LAKES AND APPALACHIANS.

THE PAC COAST SYSTEM WILL BE ACCOMPANIED BY RELATIVELY COLD MID
LEVEL TEMPERATURES /-25 C AT 500 MB/ AND 6.5-7 C/KM LAPSE RATES FROM
THE SURFACE TO ABOUT 500 MB. HOWEVER...BUOYANCY WILL BE QUITE
LIMITED /MUCAPE VALUES AOB 100 J/KG/...VERY FEW LIGHTNING STRIKES
HAVE BEEN NOTED IN OCEANIC DATA...AND ANY THUNDERSTORM THREAT SHOULD
REMAIN TOO MARGINAL FOR AN OUTLOOK AREA.

THE KS/OK PORTION OF THE PLAINS MID LEVEL TROUGH IS ACCOMPANIED BY A
WEAK CYCLONE NEAR P28. THIS SYSTEM WILL WEAKEN GRADUALLY DURING THE
DAY WHILE PROGRESSING WELL E OF THE ROCKIES...BUT A MODIFYING CP AIR
MASS WILL CONTINUE TO SPREAD NWD/NEWD TO THE NW GULF COAST ON
INDUCED SLY LOW-LEVEL FLOW. OBSERVED LOWER 60 BOUNDARY LAYER
DEWPOINTS ACROSS THE WRN GULF MAY CONTRIBUTE TO WEAK INSTABILITY
ACROSS SE TX AND SRN LA LATER TODAY INTO TONIGHT. STILL...THE
MAGNITUDE OF THE INSTABILITY WILL BE WEAK IN AN ENVIRONMENT WITH
LITTLE ORGANIZED FORCING FOR ASCENT...THUS THUNDERSTORMS ARE NOT
EXPECTED.

.THOMPSON.. 12/18/2007

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 180934
SWOD48
SPC AC 180933

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0333 AM CST TUE DEC 18 2007

VALID 211200Z - 261200Z

..DISCUSSION...
ORGANIZED SVR THREAT EXISTS OVER PORTIONS GULF COAST STATES/LOWER MS
VALLEY...OVERLAPPING DAY 4-5 CONVECTIVE PERIODS OR 21ST-23RD IN Z
TIME. DEEP SYNOPTIC SCALE TROUGH PROGGED ACROSS SWRN CONUS
DAY-4/21ST-22ND SHOULD PIVOT NEWD TOWARD GREAT LAKES/OH
VALLEY...POSSIBLY WITH CLOSED MIDLEVEL CYCLONE...THROUGH
DAY-6/23RD-24TH. THOUGH DIVERGING ON SOME EMBEDDED SHORTWAVE
DETAILS AND TILT OF WAVE...ENSEMBLE AND OPERATIONAL GUIDANCE
PACKAGES AGREE IN GENERAL WITH THIS SCENARIO. THOSE SHORTWAVE
DETAILS ARE LIKELY TO BECOME QUITE IMPORTANT TO DEVELOPMENT/TRACK OF
RESULTING DEEP SFC LOW AND TO FOCUSING SPECIFIC AREAS OF ENHANCED
SVR POTENTIAL. HOWEVER...LACK OF STRONG FROPA WITH FIRST
PERTURBATION...GEOMETRY OF PROGGED SFC PATTERN NEAR GULF COAST...AND
CURRENT STATE OF AIR MASS MODIFICATION...EACH INDICATE PROBABILITY
OF FAVORABLE MOISTURE FARTHER INLAND THAN WITH WEAKER DAY-2/DAY-3
SYSTEM. SRN/SERN PORTION OF STRONGEST FLOW ALOFT SHOULD OVERLAP
MOIST SECTOR ENOUGH TO SUPPORT SVR EVENT.

.EDWARDS.. 12/18/2007

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 180711
SWODY3
SPC AC 180709

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0109 AM CST TUE DEC 18 2007

VALID 201200Z - 211200Z

..THERE IS A SLGT RISK OF SVR TSTMS PORTIONS W-CENTRAL GULF COAST
AND LOWER DELTA REGION...

..SYNOPSIS...
UPPER AIR PATTERN WILL CONTINUE TO BE CHARACTERIZED BY PROGRESSIVE
FLOW AND STG WLY COMPONENT OVER GREAT MAJORITY OF CONUS. SHORTWAVE
TROUGH -- NOW EVIDENT IN MOISTURE CHANNEL IMAGERY W OF NRN CA COAST
INVOF 135W -- IS FCST TO MOVE INLAND DAY-1...AND ACROSS SRN ROCKIES
AND SRN PLAINS DAY-2. PERTURBATION SHOULD TURN EWD AND MOVE ACROSS
SERN CONUS THIS PERIOD...WITH SLOW DEAMPLIFICATION BASED ON MOST
SREF MEMBERS AS WELL AS OPERATIONAL SPECTRAL/WRF. ACCOMPANYING SFC
LOW LIKEWISE IS EXPECTED TO WEAKEN SLOWLY...AS IT MOVES ESEWD FROM
ARKLATEX REGION ALONG DIFFUSE/SYNOPTIC WARM FRONT.

..CENTRAL GULF COAST REGION...
FOR FIRST 6-9 HOURS OF THIS PERIOD...SVR POTENTIAL NEAR COAST WILL
CARRY OVER FROM LATE DAY-2 PERIOD...AS CONTINUATION AND SLGT EWD
SHIFT OF SAME REGIME.

AHEAD OF MID/UPPER TROUGH...VERTICAL WIND PROFILES ARE EXPECTED TO
BE FAVORABLE FOR ORGANIZED SVR OVER BROAD AREA. PRIMARY LIMITING
FACTOR WILL BE MAGNITUDE/EXTENT OF AT LEAST MRGLLY
FAVORABLE/SFC-BASED BUOYANCY INLAND. OPERATIONAL WRF...ALONG WITH
MOST ETA-BMJ MEMBERS OF SREF...APPEAR TOO AGGRESSIVE WITH MOISTURE
RETURN WITH INLAND EXTENT...BASED ON THEIR HISTORICAL TENDENCIES AND
ON OBSERVATIONAL COMPARISON WITH INITIAL MODEL CONDITIONS. PRIND
MOST UNSTABLE BOUNDARY LAYER WILL REMAIN WELL S OF WARM FRONT OVER
GULF...ALTHOUGH FCST SOUNDINGS SUGGEST SLGT INLAND PENETRATION OF
LOW-MID DEW POINTS IS LIKELY EARLY IN PERIOD THAT WILL SUPPORT
EFFECTIVE LIFTED PARCELS BEING ROOTED AT OR VERY NEAR GROUND.

MID/UPPER LEVEL TROUGH IS EXPECTED TO PROGRESS EWD FASTER THAN RATE
OF MARINE AIR MASS MODIFICATION AND DOWNSTREAM ADVECTION CAN
COMPENSATE...IN EFFECT...OUTRUNNING FAVORABLE DESTABILIZATION. NET
RESULT SHOULD BE GEN SEWD TAPERING OF INLAND SVR POTENTIAL FROM
ABOUT 20/18Z ONWARD. ALTHOUGH GREAT VARIATION EXISTS IN PROGGED
MAGNITUDE OF CAPE INLAND...AMONG OPERATIONAL MODELS AS WELL AS SREF
MEMBERS...STRONG MODEL CONSENSUS REASONABLY EXISTS WITH
SEWD-TAPERING TREND IN CAPE PATTERN. NRN EDGE OF CATEGORICAL SLGT
RISK AREA THEREFORE REPRESENTS SOME NEBULOUS TRANSITION FROM
SFC-BASED SVR POTENTIAL -- SUPERCELLS AND SMALL BOWS -- INTO
ELEVATED/ISOLATED HAIL THREAT.

.EDWARDS.. 12/18/2007

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 180545
SWODY1
SPC AC 180543

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1143 PM CST MON DEC 17 2007

VALID 181200Z - 191200Z

..NO TSTM AREAS FORECAST...

..SYNOPSIS...
MID-LEVEL FLOW PATTERN WILL AMPLIFY SLIGHTLY THIS PERIOD...AS
SHORT-WAVE TROUGH MOVES INTO/ACROSS THE WRN CONUS. THIS WILL
CONTRIBUTE TO SOME UPSTREAM AMPLIFICATION -- BOTH OF THE RIDGE
MOVING ACROSS THE ROCKIES AND INTO THE PLAINS...AND OF THE WEAK
TROUGH STILL FURTHER UPSTREAM FORECAST TO MOVE OUT OF THE PLAINS AND
INTO THE MIDWEST/GREAT LAKES.

WHILE A STRIKE OR TWO COULD OCCUR OFF THE CA COAST DURING THE
AFTERNOON IN CONJUNCTION WITH THE WRN TROUGH...AND PERHAPS A STRIKE
OVER THE WRN GULF ASSOCIATED WITH THE SECOND/UPSTREAM
TROUGH...OVERALL THUNDER POTENTIAL OVER THE CONUS APPEARS LOW/LESS
THAN 10% PROBABILITY.

.GOSS.. 12/18/2007

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KIWX [180519]: Preliminary Local Storm Report

NWUS53 KIWX 180519
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1219 AM EST TUE DEC 18 2007

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

0700 PM HEAVY SNOW CLAYPOOL 41.13N 85.88W
12/16/2007 E17.0 INCH KOSCIUSKO IN BROADCAST MEDIA

REPORT FROM WSBT

&&

EVENT NUMBER 00401

$$

BJS

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