KOTX [310341]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 310341
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
741 PM PST SUN DEC 30 2007

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

1230 AM HEAVY SNOW 10 NE HARRISON 47.55N 116.63W
12/30/2007 E4.0 INCH KOOTENAI ID TRAINED SPOTTER

0650 AM HEAVY SNOW 8 W CHELAN 47.85N 120.20W
12/30/2007 E5.0 INCH CHELAN WA TRAINED SPOTTER

SPOTTER CHELAN 36. ELEVATION 1400 FEET.

0500 PM HEAVY SNOW OSBURN 47.51N 116.00W
12/30/2007 E7.0 INCH SHOSHONE ID TRAINED SPOTTER

ELEVATION 2200 FEET.

0600 PM HEAVY SNOW EASTPORT 48.99N 116.18W
12/30/2007 E5.0 INCH BOUNDARY ID TRAINED SPOTTER

ELEVATION 2400 FEET.

0615 PM HEAVY SNOW 3 N CLARK FORK 48.19N 116.18W
12/30/2007 E6.0 INCH BONNER ID TRAINED SPOTTER

ELEVATION 2300 FEET.

0630 PM HEAVY SNOW SANDPOINT 48.28N 116.56W
12/30/2007 E6.0 INCH BONNER ID TRAINED SPOTTER

ELEVATION 2309 FEET.

0630 PM HEAVY SNOW WALLACE 47.47N 115.92W
12/30/2007 E12.0 INCH SHOSHONE ID TRAINED SPOTTER

ELEVATION 3100 FEET.

0711 PM SNOW 4 W ANATONE 46.12N 117.20W
12/30/2007 E6.5 INCH ASOTIN WA TRAINED SPOTTER

ELEVATION 3800 FEET. 5 INCHES OVERNIGHT. 1.5 INCHES
DURING THE DAY. GUSTY WINDS WITH BLOWING AND DRIFTING.

0719 PM HEAVY SNOW 4 SE BONNERS FERRY 48.65N 116.25W
12/30/2007 E4.0 INCH BOUNDARY ID TRAINED SPOTTER

ELEVATION 2200 FEET.

&&

$$

GKOCH

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MESO: Mesoscale Discussion 2277

ACUS11 KWNS 310309
SWOMCD
SPC MCD 310309
NYZ000-NJZ000-PAZ000-310615-

MESOSCALE DISCUSSION 2277
NWS STORM PREDICTION CENTER NORMAN OK
0909 PM CST SUN DEC 30 2007

AREAS AFFECTED...NERN PA/SERN NY INTO THE LOWER HUDSON VALLEY

CONCERNING...HEAVY SNOW

VALID 310309Z - 310615Z

SNOW RATES ARE INCREASING AND MAY EXCEED 1 INCH PER HOUR AT TIMES
THROUGH AT LEAST 31/06Z.

UPWARD VERTICAL MOTION ACROSS THE POCONO AND CATSKILL MOUNTAINS
APPEARS LIKELY TO BECOME MAXIMIZED BETWEEN NOW AND 31/06Z...AS 100
KT 500 MB JET STREAK CONTINUES TO NOSE NORTH NORTHEAST OF THE
CENTRAL APPALACHIANS INTO NORTHERN MID ATLANTIC COASTAL AREAS. SNOW
RATES ARE ALREADY BEGINNING TO INCREASE ACROSS THIS REGION... IN
RESPONSE TO STRONG LOW-LEVEL WARM ADVECTION AHEAD OF FRONTAL WAVE
MIGRATING NORTHEAST OF THE UPPER OHIO VALLEY. ALTHOUGH THE SOMEWHAT
LOW MOISTURE CONTENT OF THE AIR MASS MAY BE A BIT MARGINAL FOR HEAVY
SNOW...CONSIDERABLE MODEL GUIDANCE INDICATES A PROLONGED PERIOD OF
HOURLY SNOW RATES ON THE ORDER OF 1/2-1 INCH. AND...MID-LEVEL
DESTABILIZATION ASSOCIATED WITH COOLING/LIFT IN THE EXIT REGION OF
THE APPROACHING MID-LEVEL SPEED MAXIMUM MAY SUPPORT A FEW CONVECTIVE
BURSTS EXCEEDING 1 INCH PER HOUR. THIS SEEMS MOST LIKELY PRIOR TO
06Z...BEFORE STRONGER FORCING BEGINS TO DEVELOP ACROSS THE LOWER
HUDSON VALLEY TOWARD NORTHERN NEW ENGLAND.

.KERR.. 12/31/2007

..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...OKX...ALY...PHI...BGM...CTP...

41297441 41087503 40907600 41067650 41427671 41877659
42667537 42997471 42977393 42597356 41927361 41427433

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KGRB [310308]: Preliminary Local Storm Report

NWUS53 KGRB 310308
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
908 PM CST SUN DEC 30 2007

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

0907 PM SNOW OSHKOSH 44.01N 88.55W
12/30/2007 M0.3 INCH WINNEBAGO WI TRAINED SPOTTER

&&

$$

SANDERS

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KPDT [310302]: Preliminary Local Storm Report...summary

NWUS56 KPDT 310302
LSRPDT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
702 PM PST SUN DEC 30 2007

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

0600 AM SNOW 4 NW MEACHAM 45.54N 118.47W
12/30/2007 M2.0 INCH UMATILLA OR AMATEUR RADIO

2 INCHES OF NEW SNOW SINCE YESTERDAY EVENING IN EMIGRANT
SPRINGS. ELEVATION 3800 FEET.

0600 AM SNOW SENECA 44.13N 118.98W
12/30/2007 M2.0 INCH GRANT OR AMATEUR RADIO

2 INCHES OF NEW SNOW SINCE YESTERDAY EVENING. ELEVATION
4670 FEET.

0730 AM HEAVY SNOW 4 NE SISTERS 44.33N 121.49W
12/30/2007 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 6 INCHES SNOW IN PAST 3 HOURS. STORM TOTAL IS 6
INCHES...SNOW DEPTH IS 10 INCHES. ELEVATION 3200 FEET.

0800 AM SNOW 9 N ELLENSBURG 47.13N 120.55W
12/30/2007 M2.0 INCH KITTITAS WA TRAINED SPOTTER

RECEIVED 2 INCHES SNOW OVERNIGHT. CURRENTLY LT TO MOD
SNOW AND 30 DEGREES. WINDS 10 TO 15 MPH CAUSING BLOWING
SNOW AND VISIBILITY 1.5 MILES OCCASIONALLY LESS THAN
QUARTER MILE.

0800 AM SNOW 2 NW TOLLGATE 45.79N 118.11W
12/30/2007 E3.0 INCH UMATILLA OR TRAINED SPOTTER

TOLLGATE STORE RECEIVED APPROXIMATELY 3 INCHES OF NEW
SNOW OVERNIGHT.

0810 AM SNOW 2 N SISTERS 44.32N 121.55W
12/30/2007 M3.5 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 3.5 INCHES OF NEW SNOW IN 11 HOURS. CURRENTLY LT
SNOW AND 29 DEGREES. ELEVATION 3150 FEET.

0845 AM HEAVY SNOW 5 WNW APPLETON 45.82N 121.36W
12/30/2007 M12.0 INCH KLICKITAT WA TRAINED SPOTTER

SNOWDEN RECEIVED 12 INCHES OF NEW SNOW OVERNIGHT.
CURRENTLY HEAVY SNOW...VERY LOW VISIBILITY WITH WHITEOUT
CONDITIONS AND TEMP OF 29 DEGREES. ELEVATION 2400 FEET.

0915 AM SNOW 11 W GLENWOOD 46.02N 121.53W
12/30/2007 M5.0 INCH KLICKITAT WA TRAINED SPOTTER

TROUT LAKE RECEIVED 5 INCHES OVERNIGHT. 29 INCHES OF SNOW
ON GROUND. CURRENTLY NOT SNOWING BUT WINDY WITH BLOWING
SNOW REDUCING VISIBILITY TO 1 TO 2 MILES AND OCCASIONALLY
LESS THAN QUARTER MILE. ELEVATION 1930 FEET.

1210 PM HEAVY SNOW CAMP SHERMAN 44.46N 121.64W
12/30/2007 M5.0 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 INCHES OF NEW SNOW SINCE 9 PM YESTERDAY, OF
WHICH 3 INCHES HAS FALLEN SINCE 6 AM TODAY. CURRENTLY LT
TO MOD SNOW WITH OCNL SUNBREAKS AND 31 DEGREES. 9 INCHES
OF SNOW ON GROUND. ELEVATION 2980 FEET.

0537 PM HEAVY SNOW 1 SSW CAMP SHERMAN 44.45N 121.66W
12/30/2007 E9.5 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 1/2 TO 6 1/2 INCHES OF NEW SNOW FROM 9 PM
YESTERDAY TO 11 AM TODAY. RECEIVED AN ADDITIONAL 3 1/2
INCHES OF NEW SNOW SINCE 11 AM TODAY. AT 1145 AM TEMP WAS
30 DEGREES AND MODERATELY SNOWING. ELEVATION 3020 FEET.

&&
CORRECTED SUMMARY
$$

APOLAN

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KJAX [310300]: Preliminary Local Storm Report

NWUS52 KJAX 310300
LSRJAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1000 PM EST SUN DEC 30 2007

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

0400 PM TSTM WND DMG 4 S BROXTON 31.56N 82.89W
12/30/2007 COFFEE GA LAW ENFORCEMENT

DISPATCH REPORTED TREES DOWN ON QUINCEY BATTEN LOOP NEAR
STATE ROAD 206.

&&

$$

DEESE

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KPDT [310259]: Preliminary Local Storm Report...corrected

NWUS56 KPDT 310259
LSRPDT

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE PENDLETON OR
659 PM PST SUN DEC 30 2007

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

0600 AM SNOW 4 NW MEACHAM 45.54N 118.47W
12/30/2007 M2.0 INCH UMATILLA OR AMATEUR RADIO

2 INCHES OF NEW SNOW SINCE YESTERDAY EVENING IN EMIGRANT
SPRINGS. ELEVATION 3800 FEET.

0600 AM SNOW SENECA 44.13N 118.98W
12/30/2007 M2.0 INCH GRANT OR AMATEUR RADIO

2 INCHES OF NEW SNOW SINCE YESTERDAY EVENING. ELEVATION
4670 FEET.

0730 AM HEAVY SNOW 4 NE SISTERS 44.33N 121.49W
12/30/2007 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 6 INCHES SNOW IN PAST 3 HOURS. STORM TOTAL IS 6
INCHES...SNOW DEPTH IS 10 INCHES. ELEVATION 3200 FEET.

0800 AM SNOW 9 N ELLENSBURG 47.13N 120.55W
12/30/2007 M2.0 INCH KITTITAS WA TRAINED SPOTTER

RECEIVED 2 INCHES SNOW OVERNIGHT. CURRENTLY LT TO MOD
SNOW AND 30 DEGREES. WINDS 10 TO 15 MPH CAUSING BLOWING
SNOW AND VISIBILITY 1.5 MILES OCCASIONALLY LESS THAN
QUARTER MILE.

0800 AM SNOW 2 NW TOLLGATE 45.79N 118.11W
12/30/2007 E3.0 INCH UMATILLA OR TRAINED SPOTTER

TOLLGATE STORE RECEIVED APPROXIMATELY 3 INCHES OF NEW
SNOW OVERNIGHT.

0810 AM SNOW 2 N SISTERS 44.32N 121.55W
12/30/2007 M3.5 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 3.5 INCHES OF NEW SNOW IN 11 HOURS. CURRENTLY LT
SNOW AND 29 DEGREES. ELEVATION 3150 FEET.

0845 AM HEAVY SNOW 5 WNW APPLETON 45.82N 121.36W
12/30/2007 M12.0 INCH KLICKITAT WA TRAINED SPOTTER

SNOWDEN RECEIVED 12 INCHES OF NEW SNOW OVERNIGHT.
CURRENTLY HEAVY SNOW...VERY LOW VISIBILITY WITH WHITEOUT
CONDITIONS AND TEMP OF 29 DEGREES. ELEVATION 2400 FEET.

0915 AM SNOW 11 W GLENWOOD 46.02N 121.53W
12/30/2007 M5.0 INCH KLICKITAT WA TRAINED SPOTTER

TROUT LAKE RECEIVED 5 INCHES OVERNIGHT. 29 INCHES OF SNOW
ON GROUND. CURRENTLY NOT SNOWING BUT WINDY WITH BLOWING
SNOW REDUCING VISIBILITY TO 1 TO 2 MILES AND OCCASIONALLY
LESS THAN QUARTER MILE. ELEVATION 1930 FEET.

1210 PM HEAVY SNOW CAMP SHERMAN 44.46N 121.64W
12/30/2007 M5.0 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 INCHES OF NEW SNOW SINCE 9 PM YESTERDAY, OF
WHICH 3 INCHES HAS FALLEN SINCE 6 AM TODAY. CURRENTLY LT
TO MOD SNOW WITH OCNL SUNBREAKS AND 31 DEGREES. 9 INCHES
OF SNOW ON GROUND. ELEVATION 2980 FEET.

0537 PM HEAVY SNOW 1 SSW CAMP SHERMAN 44.45N 121.66W
12/30/2007 E9.5 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 1/2 TO 6 1/2 INCHES OF NEW SNOW FROM 9 PM
YESTERDAY TO 11 AM TODAY. RECEIVED AN ADDITIONAL 3 1/2
INCHES OF NEW SNOW SINCE 11 AM TODAY. AT 1145 AM TEMP WAS
30 DEGREES AND MODERATELY SNOWING. ELEVATION 3020 FEET.

&&
CORRECTED SUMMARY
$$

APOLAN

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KGRB [310300]: Preliminary Local Storm Report

NWUS53 KGRB 310300
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
900 PM CST SUN DEC 30 2007

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

0900 PM SNOW GREEN BAY 44.51N 88.00W
12/30/2007 M0.5 INCH BROWN WI OFFICIAL NWS OBS

&&

$$

SANDERS

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KGRB [310258]: Preliminary Local Storm Report

NWUS53 KGRB 310258
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
858 PM CST SUN DEC 30 2007

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

0858 PM SNOW WAUTOMA 44.06N 89.28W
12/30/2007 M1.0 INCH WAUSHARA WI TRAINED SPOTTER

&&

$$

SANDERS

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KCHS [310248]: Preliminary Local Storm Report

NWUS52 KCHS 310248
LSRCHS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
948 PM EST SUN DEC 30 2007

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

0630 PM TSTM WND DMG MIDWAY 31.81N 81.43W
12/30/2007 LIBERTY GA EMERGENCY MNGR

8 HOMES DAMAGED BY DEBRIS AND TREE BRANCHES. 1 HOME HAD
BRICK SIDING DAMAGE. SEVERAL TREES SNAPPED OFF. TIME
ESTIMATED BY RADAR.

&&

$$

FWA

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KPDT [310242]: Preliminary Local Storm Report...summary

NWUS56 KPDT 310242
LSRPDT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
642 PM PST SUN DEC 30 2007

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

0600 AM SNOW 4 NW MEACHAM 45.54N 118.47W
12/30/2007 M2.0 INCH UMATILLA OR AMATEUR RADIO

2 INCHES OF NEW SNOW SINCE YESTERDAY EVENING IN EMIGRANT
SPRINGS. ELEVATION 3800 FEET.

0600 AM SNOW SENECA 44.13N 118.98W
12/30/2007 M2.0 INCH GRANT OR AMATEUR RADIO

2 INCHES OF NEW SNOW SINCE YESTERDAY EVENING. ELEVATION
4670 FEET.

0730 AM HEAVY SNOW 5 NE SISTERS 44.34N 121.49W
12/30/2007 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 6 INCHES SNOW IN PAST 3 HOURS. STORM TOTAL IS 6
INCHES...SNOW DEPTH IS 10 INCHES.

0800 AM SNOW 9 N ELLENSBURG 47.13N 120.55W
12/30/2007 M2.0 INCH KITTITAS WA TRAINED SPOTTER

RECEIVED 2 INCHES SNOW OVERNIGHT. CURRENTLY LT TO MOD
SNOW AND 30 DEGREES. WINDS 10 TO 15 MPH CAUSING BLOWING
SNOW AND VISIBILITY 1.5 MILES OCCASIONALLY LESS THAN
QUARTER MILE.

0800 AM SNOW 2 NW TOLLGATE 45.79N 118.11W
12/30/2007 E3.0 INCH UMATILLA OR TRAINED SPOTTER

TOLLGATE STORE RECEIVED APPROX 3 INCHES SNOW OVERNIGHT.

0810 AM SNOW 3 NNE SISTERS 44.33N 121.54W
12/30/2007 M3.5 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 3.5 INCHES IN 11 HOURS. CURRENTLY LT SNOW AND 29
DEGREES.

0845 AM HEAVY SNOW 5 WNW APPLETON 45.82N 121.36W
12/30/2007 M12.0 INCH KLICKITAT WA TRAINED SPOTTER

SNOWDEN AREA RECEIVED 12 INCHES SNOW OVERNIGHT. CURRENTLY
HVY SNOW...VERY LOW VISIBILITY WITH WHITEOUT CONDITIONS
AND 29 DEGREES.

0915 AM SNOW 11 W GLENWOOD 46.02N 121.53W
12/30/2007 M5.0 INCH KLICKITAT WA TRAINED SPOTTER

TROUT LAKE RECEIVED 5 INCHES OVERNIGHT. 29 INCHES ON
GROUND. CURRENTLY NOT SNOWING BUT WINDY WITH VISIBILITY 1
TO 2 MILES OCCASIONALLY LESS THAN QUARTER MILE.

1210 PM HEAVY SNOW CAMP SHERMAN 44.46N 121.64W
12/30/2007 M5.0 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 INCHES OF NEW SNOW SINCE 9 PM YESTERDAY, OF
WHICH 3 INCHES HAS FALLEN SINCE 6 AM TODAY. CURRENTLY LT
TO MOD SNOW WITH OCNL SUNBREAKS AND 31 DEGREES. 9 INCHES
OF SNOW ON GROUND. ELEVATION 2980 FEET.

0537 PM HEAVY SNOW 1 SSW CAMP SHERMAN 44.45N 121.66W
12/30/2007 E9.5 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 1/2 TO 6 1/2 INCHES OF NEW SNOW FROM 9 PM
YESTERDAY TO 11 AM TODAY. RECEIVED AN ADDITIONAL 3 1/2
INCHES OF NEW SNOW SINCE 11 AM TODAY. AT 1145 AM TEMP WAS
30 DEGREES AND MODERATELY SNOWING. ELEVATION 3020 FEET.

&&

$$

APOLAN

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KDVN [310108]: Preliminary Local Storm Report

NWUS53 KDVN 310108
LSRDVN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
708 PM CST SUN DEC 30 2007

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

0650 PM SNOW FREEPORT 42.29N 89.63W
12/30/2007 E1.0 INCH STEPHENSON IL TRAINED SPOTTER

&&

$$

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KPIH [310104]: Preliminary Local Storm Report

NWUS55 KPIH 310104
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
604 PM MST SUN DEC 30 2007

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

0600 PM BLIZZARD MCCAMMON 42.65N 112.19W
12/30/2007 BANNOCK ID LAW ENFORCEMENT

INTERSTATE 15 SOUTHBOUND CLOSED DUE TO DRIFTING SNOW FROM
EXIT 47 SOUTH TO EXIT 40.

&&

$$

JMESSICK

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 310017
SWODY1
SPC AC 310014

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0614 PM CST SUN DEC 30 2007

VALID 310100Z - 311200Z

..NO SVR TSTM AREAS FORECAST...

..SERN STATES...
PROGRESSIVE MID/UPPER LEVEL TROUGH...CURRENTLY LOCATED OVER THE
OH/TN VALLEYS...WILL TRACK NEWD OVERNIGHT ACROSS THE CENTRAL/SRN
APPALACHIANS...REACHING MID ATLANTIC REGION/SRN NEW ENGLAND BY 12Z
MONDAY. EARLY EVENING SURFACE ANALYSIS SHOWED AN AREA OF LOW
PRESSURE DEVELOPING EWD ACROSS THE NC COAST WITH A FRONT TRAILING
SWWD THROUGH CENTRAL SC TO CENTRAL/SRN GA AND THE ERN FL PANHANDLE.
REGIONAL RADARS INDICATED A COUPLE OF ONGOING TSTMS WITHIN SMALL
MOIST AND MARGINALLY UNSTABLE WARM SECTOR OVER SERN GA/FAR SRN SC...
WITH ADDITIONAL ACTIVITY EXTENDING SWWD ALONG TRAILING PART OF FRONT
THROUGH SRN GA TO ERN FL PANHANDLE.

ASCENT WITHIN ENTRANCE REGION OF MID/UPPER LEVEL JET ATTENDANT TO
OH/TN VALLEYS TROUGH WILL MAINTAIN TSTM DEVELOPMENT ACROSS THE REST
OF FAR SRN SC/SERN GA AND NRN FL THIS EVENING BEFORE THE FRONT MOVES
OFFSHORE THE NC/SC/GA COAST LATER TONIGHT AND INTO NRN FL. STRONG
DEEP LAYER SWLY WIND FIELDS WILL CONTINUE TO MAINTAIN EFFECTIVE
SHEAR SUPPORTIVE OF ORGANIZED BOWING STRUCTURES. HOWEVER...SEVERE
WEATHER THREAT IS EXPECTED TO DIMINISH DURING THE NEXT FEW HOURS AS
AIR MASS UNDERGOES FURTHER STABILIZATION GIVEN ONSET OF BOUNDARY
LAYER COOLING.

.PETERS.. 12/31/2007

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KGJT [302258]: Preliminary Local Storm Report

NWUS55 KGJT 302258
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
357 PM MST SUN DEC 30 2007

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

0350 PM NON-TSTM WND GST 24 E MANILA 40.99N 109.26W
12/30/2007 M59 MPH DAGGETT UT TRAINED SPOTTER

THE 59 MPH WIND GUST OCCURRED AT 330 PM MST. GUSTS OF 40
TO 50 MPH STILL OCCURRING AT 350 PM MDT.

&&

$$

JPRINGLE

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KBOI [302210]: Preliminary Local Storm Report

NWUS55 KBOI 302210
LSRBOI

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE ID
310 PM MST SUN DEC 30 2007

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

1117 AM SNOW 3 NW KEATING 44.91N 117.65W
12/30/2007 M0.5 INCH BAKER OR TRAINED SPOTTER

TRAINED SPOTTER MEASURED 0.5 INCHES OF NEW SNOWFALL
OVERNIGHT WITH 6 INCHES OF SNOW DEPTH.

&&

$$

SLEWIS

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KCYS [302156]: Preliminary Local Storm Report...corrected

NWUS55 KCYS 302156
LSRCYS

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHEYENNE WY
256 PM MST SUN DEC 30 2007

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

0245 PM HEAVY SNOW ENCAMPMENT 41.21N 106.79W
12/30/2007 U0.0 INCH CARBON WY PUBLIC

LOCAL BUSINESS IN ENCAMPMENT REPORTED BRUTAL CONDITIONS
OUTSIDE WITH VISIBILITY LIMITED SINCE LATE MORNING TO
ABOUT 100 TO 200 YARDS. NEW SNOWFALL AMOUNT WAS NOT
AVAILABLE DUE TO THE SIGNIFICANT WINDS ALSO OCCURRING.

&&

$$

SJC

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KCYS [302154]: Preliminary Local Storm Report

NWUS55 KCYS 302154
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
254 PM MST SUN DEC 30 2007

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

0245 PM HEAVY SNOW ENCAMPMENT 41.21N 106.79W
12/30/2007 U0.0 INCH CARBON WY PUBLIC

LOCAL BUSINESS IN ENCAMPMENT REPORTED BRUTAL CONDITIONS
OUTSIDE WITH VISIBILITY LIMITED SINCE LATE MORNING TO
ABOUT 100 TO 200 YARDS.

&&

$$

SJC

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KCYS [302152]: Preliminary Local Storm Report

NWUS55 KCYS 302152
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
252 PM MST SUN DEC 30 2007

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

0235 PM NON-TSTM WND GST 1 N FEDERAL 41.26N 105.09W
12/30/2007 M71 MPH LARAMIE WY TRAINED SPOTTER

&&

$$

SJC

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KCYS [302135]: Preliminary Local Storm Report

NWUS55 KCYS 302135
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
235 PM MST SUN DEC 30 2007

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

0230 PM HEAVY SNOW BROOKLYN LAKE 41.37N 106.25W
12/30/2007 M15.0 INCH ALBANY WY MESONET

ELEV. 10240 FEET. NEARBY TRAINED SPOTTER REPORTED VERY
SIMILAR SNOWFALL TOTALS FROM EVENING OF 12/29/07 THROUGH
230 PM MST 12/30/07...WITH SNOW CONTINUING TO FALL AT
GREATER THAN ONE INCH PER HOUR AT TIME OF REPORT.

&&

$$

SJC

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KGJT [302134]: Preliminary Local Storm Report

NWUS55 KGJT 302134
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
234 PM MST SUN DEC 30 2007

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

0232 PM HEAVY SNOW 3 E STEAMBOAT SPRINGS 40.48N 106.76W
12/30/2007 M17.0 INCH ROUTT CO TRAINED SPOTTER

STORM TOTAL SNOWFALL AT STEAMBOAT SPRINGS SKI AREA AS OF
130 PM MST THIS AFTERNOON.

&&

$$

JPRINGLE

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KPDT [302111]: Preliminary Local Storm Report

NWUS56 KPDT 302111
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
111 PM PST SUN DEC 30 2007

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

1145 AM HEAVY SNOW 1 SSW CAMP SHERMAN 44.44N 121.65W
12/30/2007 E6.0 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 TO 7 INCHES SNOW OVERNIGHT. CURRENTLY 30
DEGREES AND MODERATELY SNOWING.

1210 PM HEAVY SNOW WNW CAMP SHERMAN 44.46N 121.65W
12/30/2007 M5.0 INCH JEFFERSON OR TRAINED SPOTTER

RECEIVED 5 INCHES SNOW OVERNIGHT. CURRENTLY LT TO MOD
SNOW WITH OCNL SUNBREAKS AND 31 DEGREES. 9 INCHES OF SNOW
ON GROUND.

&&

$$

AA

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MESO: Mesoscale Discussion 2276

ACUS11 KWNS 302107
SWOMCD
SPC MCD 302107
GAZ000-FLZ000-302200-

MESOSCALE DISCUSSION 2276
NWS STORM PREDICTION CENTER NORMAN OK
0307 PM CST SUN DEC 30 2007

AREAS AFFECTED...SERN GA

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 302107Z - 302200Z

ISOLATED BRIEF DAMAGING WIND/TORNADO THREAT WILL EXIST IN SERN GA
THE NEXT HOUR OR SO...THOUGH THE THREAT APPEARS TOO LIMITED FOR A
WW.

PREFRONTAL LINE OF CONVECTION HAS SHIFTED EWD ACROSS MOST OF THE
CAROLINAS AND EXTENDS SWWD ACROSS SERN GA FROM NEAR SAV TO 35N TLH.
AHEAD OF THIS BOUNDARY...TEMPERATURES HAD WARMED INTO THE MID 70S
AND DEWPOINTS INTO THE MID 60S...RESULTING IN MLCAPES UP TO 1000
J/KG. DESPITE WEAK LAPSE RATES AND MOSTLY UNIDIRECTIONAL SWLY WIND
PROFILES...THE DEGREE OF INSTABILITY AND 30-40 KT DEEP LAYER SHEAR
WAS SUFFICIENT FOR WEAK MID LEVEL ROTATION IN ONE OR TWO STORMS.
THE ENVIRONMENT MAY SUPPORT A BRIEF WIND/TORNADO THREAT FOR THE NEXT
HOUR OR SO...BUT SHOULD WEAKEN AS THE STORMS SHIFT EWD AWAY FROM THE
STRONGER FORCING AND ENCOUNTER DECREASING INSTABILITY.

.IMY.. 12/30/2007

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

ATTN...WFO...CHS...JAX...TAE...

30528176 30628400 30858399 31428261 32028195 32268150
32118117 31638121

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 302001
SWODY1
SPC AC 301959

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0159 PM CST SUN DEC 30 2007

VALID 302000Z - 311200Z

..THERE IS A SLGT RISK OF SVR TSTMS ACROSS SRN GA...ERN SC...SERN
NC...

..SRN GA/ERN SC/SE NC...
A LARGE-SCALE UPPER-LEVEL TROUGH IS EVIDENT ON WATER VAPOR IMAGERY
APPROACHING THE MS VALLEY WITH A PLUME OF MID-LEVEL MOISTURE
STREAMING NEWD ACROSS ERN AL...GA INTO THE SRN APPALACHIAN MTNS. AT
THE SFC...A STATIONARY FRONT IS LOCATED FROM ERN SC EXTENDING WSWWD
INTO SCNTRL GA WITH A COLD FRONT MOVING EWD INTO SW GA. A LINE OF
TRAINING CELLS HAVE DEVELOPED ALONG THE AXIS OF A SFC TROUGH AHEAD
OF THE FRONT EXTENDING NEWD INTO FAR SERN SC. THIS LINE WILL LIKELY
CONTINUE TO DEVELOP AND MOVE ENEWD ACROSS A NARROW WARM SECTOR THIS
AFTERNOON. AS THE UPPER-LEVEL SYSTEM APPROACHES THE REGION...A 50 KT
LOW-LEVEL JET OVER SRN AL AND CNTRL GA WILL MOVE QUICKLY NEWD AND
LARGE-SCALE ASCENT WILL DECREASE FROM SOUTHWEST TO NORTHEAST ACROSS
THE REGION. AS A RESULT...THUNDERSTORM POTENTIAL SHOULD END BY EARLY
EVENING ACROSS SRN AND CNTRL GA AND DURING THE MID EVENING ACROSS
ERN SC.

CONCERNING THE SEVERE THREAT...THE LATEST REGIONAL WSR-88D VWPS SHOW
MODERATE DEEP LAYER SHEAR IN PLACE ACROSS THE SLIGHT RISK AREA. THIS
COMBINED WITH BOUNDARY LAYER SHEAR ASSOCIATED WITH THE LOW-LEVEL JET
SHOULD BE ENOUGH FOR AN ORGANIZED SEVERE THREAT IN SPITE OF THE WEAK
INSTABILITY IN PLACE. THE SEVERE THREAT MAY CONTINUE THIS AFTERNOON
AS INSTABILITY INCREASES SLOWLY AND THE LOW-LEVEL JET MOVES NEWD
ACROSS SERN GA AND SC. WIND DAMAGE WOULD LIKELY BE THE PRIMARY
THREAT DUE TO THE STRONG LOW-LEVEL FLOW. HOWEVER...THE SEVERE THREAT
SHOULD DECREASE QUICKLY BY EARLY EVENING AS INSTABILITY DECREASES
ACROSS THE WARM SECTOR.

.BROYLES.. 12/30/2007

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KOTX [301946]: Preliminary Local Storm Report

NWUS56 KOTX 301946
LSROTX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
1146 AM PST SUN DEC 30 2007

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

0650 AM HEAVY SNOW 8 W CHELAN 47.85N 120.20W
12/30/2007 E5.0 INCH CHELAN WA TRAINED SPOTTER

SPOTTER CHELAN 36. ELEVATION 1400 FEET.

1140 AM HEAVY SNOW 5 SW ANATONE 46.08N 117.20W
12/30/2007 M5.0 INCH ASOTIN WA TRAINED SPOTTER

SPOTTER ASOTIN 13. ELEVATION 3800 FEET.

&&

$$

SSAVOY

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KPIH [301836]: Preliminary Local Storm Report

NWUS55 KPIH 301836
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
1136 AM MST SUN DEC 30 2007

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

1124 AM BLIZZARD BERN 42.33N 111.38W
12/30/2007 BEAR LAKE ID CO-OP OBSERVER

WHITE OUT CONDITIONS WITH 5 INCHES OF NEW SNOW.

1124 AM BLIZZARD WESTON 42.04N 111.98W
12/30/2007 FRANKLIN ID CO-OP OBSERVER

WHITE OUT CONDITIONS.

1124 AM BLIZZARD MONTPELIER 42.32N 111.30W
12/30/2007 BEAR LAKE ID TRAINED SPOTTER

WHITE OUT CONDITIONS WITH 6 TO 8 INCHES OF NEW SNOW.

1124 AM BLIZZARD MONTPELIER 42.32N 111.30W
12/30/2007 BEAR LAKE ID LAW ENFORCEMENT

WHITE OUT CONDITIONS BEING REPORTED BY SHERIFFS DEPT.
AROUND THE BEAR LAKE COUNTY.

1124 AM BLIZZARD PRESTON 42.10N 111.87W
12/30/2007 FRANKLIN ID LAW ENFORCEMENT

SPOTTY WHITE OUT CONDITIONS THROUGH OUT COUNTY.

1124 AM BLIZZARD GRACE 42.58N 111.73W
12/30/2007 CARIBOU ID TRAINED SPOTTER

WHITE OUT CONDITIONS WINDS 15 MPH GUSTING TO 20 MPH. MANY
BACK RODAS CLOSED.

1124 AM BLIZZARD CHESTERFIELD 42.87N 111.88W
12/30/2007 CARIBOU ID TRAINED SPOTTER

WHITE OUT CONDITIONS WITH LIGHT SNOW FALLING WINDS
SUSTAINED AT 37 MPH MANY BACK ROADS CLOSED.

1124 AM BLIZZARD WAYAN 42.98N 111.37W
12/30/2007 CARIBOU ID CO-OP OBSERVER

WHITE OUT CONDITIONS.

&&

$$

DPHELPS

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MESO: Mesoscale Discussion 2275

ACUS11 KWNS 301816
SWOMCD
SPC MCD 301815
NCZ000-SCZ000-GAZ000-FLZ000-301945-

MESOSCALE DISCUSSION 2275
NWS STORM PREDICTION CENTER NORMAN OK
1215 PM CST SUN DEC 30 2007

AREAS AFFECTED...CENTRAL FL PANHANDLE...SERN GA...ERN SC AND SERN NC

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 301815Z - 301945Z

VERY ISOLATED AND BRIEF SEVERE STORMS ARE POSSIBLE FROM THE CENTRAL
FL PANHANDLE NEWD INTO SERN GA THROUGH MID AFTERNOON... THOUGH THE
THREAT APPEARS IT WILL BE TOO LIMITED FOR A WW ISSUANCE.

AT 18Z...LEADING EDGE OF CONVECTION WAS LOCATED NEAR A OGB-VDI-MAI
LINE. 30-40 KT DEEP LAYER SHEAR AND MUCAPES BETWEEN 500-1000 J/KG
MAY SUPPORT A BRIEF SEVERE THREAT AS THIS CONVECTION SHIFTS EWD
THROUGH THE AFTERNOON. HOWEVER...THIS CONVECTION SHOULD REMAIN
WELL EAST OF THE STRONGER FORCING...CURRENTLY SPREADING THROUGH
AL/NWRN GA...AHEAD OF AN INTENSE SHORTWAVE TROUGH LOCATED ALONG THE
MS RIVER. GIVEN THE WEAK FORCING AND MARGINAL ENVIRONMENT FOR
SEVERE...A WW IS NOT ANTICIPATED IN THE NEAR TERM.

AS THE UPPER TROUGH LIFTS NEWD AND BECOMES MORE STRONGLY NEGATIVELY
TILTED...LARGE SCALE ASCENT SHOULD SPREAD NEWD ACROSS GA AND INTO
THE MID ATLANTIC STATES. HOWEVER...THE BOUNDARY LAYER BEHIND THE
ONGOING CONVECTION IS COOL AND STABLE...AND COMBINED WITH POOR MID
LEVEL LAPSE RATES...SEVERE CONVECTION IS UNLIKELY WITHIN THE REGION
OF STRONGER FORCING.

.IMY.. 12/30/2007

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

ATTN...WFO...MHX...RAH...ILM...CHS...CAE...JAX...FFC...TAE...

31158213 29968413 30458459 31818261 33198106 35067901
34697801 33007989 31978114

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KPDT [301746]: Preliminary Local Storm Report

NWUS56 KPDT 301746
LSRPDT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
946 AM PST SUN DEC 30 2007

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

0730 AM HEAVY SNOW 5 NE SISTERS 44.34N 121.49W
12/30/2007 M6.0 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 6 INCHES SNOW IN PAST 3 HOURS. STORM TOTAL IS 6
INCHES...SNOW DEPTH IS 10 INCHES.

0800 AM SNOW 9 N ELLENSBURG 47.13N 120.55W
12/30/2007 M2.0 INCH KITTITAS WA TRAINED SPOTTER

RECEIVED 2 INCHES SNOW OVERNIGHT. CURRENTLY LT TO MOD
SNOW AND 30 DEGREES. WINDS 10 TO 15 MPH CAUSING BLOWING
SNOW AND VISIBILITY 1.5 MILES OCCASIONALLY LESS THAN
QUARTER MILE.

0810 AM SNOW 3 NNE SISTERS 44.33N 121.54W
12/30/2007 M3.5 INCH DESCHUTES OR TRAINED SPOTTER

RECEIVED 3.5 INCHES IN 11 HOURS. CURRENTLY LT SNOW AND 29
DEGREES.

0845 AM HEAVY SNOW 5 WNW APPLETON 45.82N 121.36W
12/30/2007 M12.0 INCH KLICKITAT WA TRAINED SPOTTER

SNOWDEN AREA RECEIVED 12 INCHES SNOW OVERNIGHT. CURRENTLY
HVY SNOW...VERY LOW VISIBILITY WITH WHITEOUT CONDITIONS
AND 29 DEGREES.

0915 AM SNOW 11 W GLENWOOD 46.02N 121.53W
12/30/2007 M5.0 INCH KLICKITAT WA TRAINED SPOTTER

TROUT LAKE RECEIVED 5 INCHES OVERNIGHT. 29 INCHES ON
GROUND. CURRENTLY NOT SNOWING BUT WINDY WITH VISIBILITY 1
TO 2 MILES OCCASIONALLY LESS THAN QUARTER MILE.

0800 AM SNOW 2 NW TOLLGATE 45.79N 118.11W
12/30/2007 E3.0 INCH UMATILLA OR TRAINED SPOTTER

TOLLGATE STORE RECEIVED APPROX 3 INCHES SNOW OVERNIGHT.

&&

$$

AA

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 301717
SWODY2
SPC AC 301715

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1115 AM CST SUN DEC 30 2007

VALID 311200Z - 011200Z

..NO SVR TSTM AREAS FORECAST...

AN UPPER-LEVEL TROUGH OVER THE PLAINS STATES TONIGHT WILL MOVE INTO
THE MS VALLEY MONDAY. AN IMPRESSIVE 130 KT MID-LEVEL JET ASSOCIATED
WITH THE TROUGH WILL DRIFT EWD AS MID-LEVEL FLOW INCREASES ACROSS
THE SERN STATES. THIS WILL HELP DRIVE A COLD FRONT SWD INTO CNTRL
FLORIDA MONDAY. A FEW THUNDERSTORMS MAY DEVELOP ALONG THE BOUNDARY
MONDAY AFTERNOON AS SFC TEMPS WARM. HOWEVER...INSTABILITY IS
FORECAST TO REMAIN WEAK AND SHEAR SHOULD BE TOO MARGINAL FOR A
SEVERE THREAT MONDAY AFTERNOON.

.BROYLES.. 12/30/2007

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KFFC [301701]: Preliminary Local Storm Report

NWUS52 KFFC 301701
LSRFFC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1201 PM EST SUN DEC 30 2007

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

1110 AM HAIL GRESSTON 32.29N 83.25W
12/30/2007 E0.25 INCH DODGE GA EMERGENCY MNGR

HAIL FELL FOR 4 TO 5 MINUTES.

&&

$$

SBK

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KBOI [301700]: Preliminary Local Storm Report

NWUS55 KBOI 301700
LSRBOI

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE ID
959 AM MST SUN DEC 30 2007

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

0759 AM SNOW 2 ENE COUNCIL 44.74N 116.39W
12/30/2007 M2.3 INCH ADAMS ID TRAINED SPOTTER

0833 AM SNOW 5 NNW GLENDALE 44.89N 116.44W
12/30/2007 M2.0 INCH ADAMS ID TRAINED SPOTTER

0833 AM SNOW 7 NW MCCALL 44.99N 116.21W
12/30/2007 M6.0 INCH ADAMS ID PUBLIC

BRUNDAGE SKI RESORT SNOWSTAKE REPORTED 6 INCHES OF NEW
SNOW.

0854 AM SNOW 12 NE BOISE 43.73N 116.06W
12/30/2007 M2.0 INCH BOISE ID PUBLIC

BOGUS BASIN SKI RESORT SNOWSTAKE REPORTED 2 INCHES OF NEW
SNOW.

0854 AM SNOW 5 SW DONNELLY 44.68N 116.15W
12/30/2007 M5.0 INCH VALLEY ID PUBLIC

TAMARACK SKI RESORT WEBSITE REPORTED 5 INCHES OF NEW SNOW
WITHIN THE PAST 24 HRS.

0854 AM SNOW N IDAHO CITY 43.84N 115.85W
12/30/2007 M4.0 INCH BOISE ID CO-OP OBSERVER

COOP OBSERVER REPORTED 4 INCHES OF NEW SNOW IN PAST 24
HRS.

0854 AM NON-TSTM WND GST N HALFWAY 44.88N 117.11W
12/30/2007 U0.00 MPH BAKER OR TRAINED SPOTTER

TRAINED SPOTTER REPORTED SIGNIFICANT WIND GUSTS...SPEED
UNKNOWN...STRONG ENOUGH TO DISPLACE DECK FURNITURE.

0854 AM SNOW 6 SSE ROCK CREEK 44.84N 118.01W
12/30/2007 M1.0 INCH BAKER OR TRAINED SPOTTER

0854 AM SNOW 5 S MCCALL 44.85N 116.11W
12/30/2007 E2.0 INCH VALLEY ID TRAINED SPOTTER

&&

$$

MTHIMMES

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KFFC [301655]: Preliminary Local Storm Report

NWUS52 KFFC 301655
LSRFFC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1154 AM EST SUN DEC 30 2007

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

1055 AM HAIL 2 SSE HAWKINSVILLE 32.26N 83.46W
12/30/2007 E0.25 INCH PULASKI GA PUBLIC

&&

$$

SBK

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 301547
SWODY1
SPC AC 301544

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0944 AM CST SUN DEC 30 2007

VALID 301630Z - 311200Z

..THERE IS A SLGT RISK OF SVR TSTMS TODAY INTO THIS EVENING FROM
SRN GA TO THE COASTAL CAROLINAS...

..SE STATES THROUGH THIS EVENING...
A MID LEVEL TROUGH NEAR THE ARKLATEX THIS MORNING WILL MOVE ENEWD TO
THE TN VALLEY BY THIS EVENING...AND THEN THE CENTRAL APPALACHIANS
AND MID ATLANTIC BY LATE TONIGHT. PRECEDING THIS MID LEVEL
TROUGH...A SURFACE FRONT EXTENDS NEWD FROM THE WRN FL PANHANDLE TO
CENTRAL GA/SC AND SRN NC. CYCLOGENESIS IS EXPECTED ALONG THIS
BOUNDARY AND IN ADVANCE OF THE MID LEVEL TROUGH...WITH THE
DEVELOPING SURFACE CYCLONE EXPECTED TO MOVE FROM CENTRAL GA THIS
MORNING TO NE NC BY THIS EVENING.

THUNDERSTORMS ARE ONGOING IN A BAND ALONG THE COLD FRONT FROM THE FL
PANHANDLE INTO CENTRAL GA WHERE LOW-LEVEL CONVERGENCE/ASCENT IS
MAXIMIZED ALONG THE W EDGE OF THE RICHER MOISTURE. DESPITE BOUNDARY
LAYER DEWPOINTS IN THE MID-UPPER 60S WITH CONTINUED MOISTURE
ADVECTION AND VERTICAL MIXING...REGIONAL 12Z SOUNDINGS REVEALED
RATHER POOR MID LEVEL LAPSE RATES WITHIN THE WARM SECTOR. THE POOR
LAPSE RATES AND EXTENSIVE CLOUDS WILL LIMIT DESTABILIZATION...WITH
MUCAPE VALUES LIKELY TO REMAIN AOB 500-1000 J/KG. WITH THE MAJORITY
OF THE CONVECTION EXPECTED TO REMAIN ON THE COOL SIDE OF THE SURFACE
FRONT...THE SEVERE STORM THREAT WILL BE CONFINED TO A NARROW
CORRIDOR ALONG THE BOUNDARY /IN THE PATH OF THE SURFACE WAVE/.

THE COMBINATION OF WEAK INSTABILITY AND RELATIVELY LONG/STRAIGHT
HODOGRAPH STRUCTURES APPEARS SUFFICIENT FOR EMBEDDED BOW ECHOES
AND/OR SUPERCELLS. DAMAGING WINDS WILL BE THE PRIMARY
THREAT...THOUGH A TORNADO OR TWO COULD OCCUR GIVEN THE MOIST
PROFILES AND SOMEWHAT STRONGER LOW-LEVEL SHEAR IMMEDIATELY IN
ADVANCE OF THE SURFACE WAVE THIS AFTERNOON/EVENING.

.THOMPSON.. 12/30/2007

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KDLH [301506]: Preliminary Local Storm Report

NWUS53 KDLH 301506
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
906 AM CST SUN DEC 30 2007

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

0555 AM SNOW DULUTH 46.78N 92.12W
12/30/2007 M0.3 INCH ST. LOUIS MN OFFICIAL NWS OBS

DULUTH NWS OFFICE. SNOW DEPTH 19 INCHES.

0640 AM SNOW 12 N ISLE 46.32N 93.46W
12/30/2007 M0.2 INCH AITKIN MN CO-OP OBSERVER

0650 AM SNOW BUTTERNUT 46.01N 90.50W
12/30/2007 M2.0 INCH ASHLAND WI CO-OP OBSERVER

0740 AM SNOW PARK FALLS 45.93N 90.45W
12/30/2007 M2.0 INCH PRICE WI TRAINED SPOTTER

SNOW DEPTH 18 INCHES.

0740 AM SNOW GILE 46.43N 90.23W
12/30/2007 M0.8 INCH IRON WI TRAINED SPOTTER

0758 AM SNOW UPSON 46.37N 90.41W
12/30/2007 M1.0 INCH IRON WI CO-OP OBSERVER

SNOW DEPTH 22 INCHES.

0854 AM SNOW BAYFIELD 46.81N 90.82W
12/30/2007 M0.5 INCH BAYFIELD WI CO-OP OBSERVER

0855 AM SNOW GRANTSBURG 45.78N 92.68W
12/30/2007 M0.5 INCH BURNETT WI TRAINED SPOTTER

SNOW DEPTH 12 INCHES.

&&

$$

TLONKA

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KJAN [301437]: Preliminary Local Storm Report

NWUS54 KJAN 301437
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
837 AM CST SUN DEC 30 2007

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

1237 AM HAIL 2 N UNION 32.60N 89.12W
12/30/2007 E0.50 INCH NESHOBA MS LAW ENFORCEMENT

PEA TO DIME-SIZE HAIL NEAR THE NEWTON AND NESHOBA COUNTY
BORDER WAS REPORTED BY NESHOBA COUNTY 911.

&&

$$

EC

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KGJT [301426]: Preliminary Local Storm Report

NWUS55 KGJT 301426
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
726 AM MST SUN DEC 30 2007

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

0721 AM SNOW 7 SSE SILVERTON 37.72N 107.61W
12/30/2007 M4.0 INCH SAN JUAN CO DEPT OF HIGHWAYS

RED MOUNTAIN PASS OVERNIGHT SNOWFALL 4 INCHES...AND 2
INCHES AT MOLAS PASS. BLOWING SNOW REPORTED AT BOTH
LOCATIONS THIS MORNING.

&&

$$

JPRINGLE

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MESO: Mesoscale Discussion 2274

ACUS11 KWNS 301325
SWOMCD
SPC MCD 301325
GAZ000-FLZ000-ALZ000-301500-

MESOSCALE DISCUSSION 2274
NWS STORM PREDICTION CENTER NORMAN OK
0725 AM CST SUN DEC 30 2007

AREAS AFFECTED...FL PNHDL INTO CNTRL GA

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 301325Z - 301500Z

ONGOING TSTMS ARE EXPECTED TO BECOME SURFACE-BASED BY MID TO LATE
MORNING WITH AN INCREASING THREAT OF DAMAGING WINDS AND PERHAPS
TORNADOES. CONVECTIVE TRENDS ARE BEING MONITORED FOR A
POSSIBLE WW PRIOR TO NOON.

LATEST MESOANALYSIS INDICATED PRIMARY BAROCLINIC ZONE EXTENDING FROM
E-CNTRL NC WWD TO WEAK LOW PRESSURE NEAR SOP...SWWD TO LOW PRESSURE
E OF CSG...AND CONTINUING SWWD TO LOW PRESSURE E OF PNS. THE MOST
VIGOROUS TSTM ACTIVITY AS OF 13Z WAS OCCURRING FROM BARBOUR COUNTY
IN SERN AL SWWD INTO SANTA ROSA AND OKALOOSA COUNTIES IN THE FL
PNHDL...ALONG WRN EDGE OF HIGHER THETA-E AIR MASS STREAMING NEWD
FROM THE NERN GULF OF MEXICO.

WHILE WEAK MIDLEVEL LAPSE RATES WHERE LIMITING THE DEGREE OF
CONVECTIVE INSTABILITY PER 12Z TLH SOUNDING...MIDLEVEL COOLING FROM
THE W /REF 12Z LIX SOUNDING/ COUPLED WITH A WARMING/MOISTENING
BOUNDARY LAYER SHOULD SUPPORT GRADUAL DESTABILIZATION THIS MORNING
ACROSS DISCUSSION AREA. THIS WILL OCCUR IN CONCERT WITH STEADILY
STRENGTHENING TROPOSPHERIC WIND FIELDS WITH APPROACH OF UPPER TROUGH
FROM THE LOWER MS VALLEY. AS SUCH...ONGOING ACTIVITY SHOULD BECOME
SURFACE-BASED BY MID TO LATE MORNING WITH AN INCREASING THREAT OF
ORGANIZED STORMS...INCLUDING SUPERCELLS AND BOWING STRUCTURES.

.MEAD.. 12/30/2007

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

ATTN...WFO...JAX...FFC...TAE...BMX...MOB...

30448646 31348567 32118472 32858334 32648277 32068236
31038317 30268413 29778484 29808597

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 301226
SWODY1
SPC AC 301223

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0623 AM CST SUN DEC 30 2007

VALID 301300Z - 311200Z

..THERE IS A SLGT RISK OF SVR TSTMS OVER PART OF THE SOUTHEAST...

..SOUTHEAST...
FAST MOVING SHORTWAVE TROUGH AND ASSOCIATED MID/UPPER LEVEL JET
ENERGY NOW EJECTING OUT OF THE SRN PLAINS WILL MOVE QUICKLY ENEWD
ACROSS THE SRN/CENTRAL APPALACHIANS TODAY. THIS WILL OCCUR AS
SECOND...STRONG IMPULSE DIGS ACROSS THE CENTRAL/NRN ROCKIES AND
REDEVELOPS MID/UPPER LEVEL TROUGH OVER THE CENTRAL PLAINS TONIGHT.
SURFACE FRONT WAS DRAPED FROM THE E-CENTRAL NC COAST ROUGHLY SWWD
INTO CENTRAL GA AND INTO THE FAR WRN FL PANHANDLE AT 12Z...WITH WEAK
LOWS EVIDENT NEAR CSG AND PNS. EXPECT SURFACE LOW WILL BECOME MORE
CONSOLIDATED DURING THE MORNING OVER THIS REGION AND THEN TRACK
QUICKLY ENEWD ALONG THE STALLED FRONT INTO SERN NC BY THIS
AFTERNOON. THIS LOW TRACK WILL INCREASE SWLY LOW LEVEL FLOW OFF THE
NERN GULF OF MEXICO AND ALLOW MOISTURE TO SPREAD STEADILY INLAND
TODAY. SURFACE DEW POINTS IN THE LOWER 70S ARE EVIDENT JUST OFF THE
FL PANHANDLE COAST THIS MORNING...WITH AXIS OF MID 60F DEW POINTS
EXTENDING INTO SERN NC.

ONGOING CLUSTERS OF STORMS HAVE REMAINED ELEVATED ATOP SHALLOW
STABLE LAYER EARLY THIS MORNING. HOWEVER...COMBINATION OF MODEST
DIURNAL HEATING...CONVERGENCE AND CONTINUED MOISTENING IN THE LOWER
LEVELS SHOULD WEAKEN THIS SHALLOW INVERSION AND ALLOW STORMS TO ROOT
NEAR THE SURFACE BY THE MID TO LATE MORNING. AXIS OF MARGINAL
INSTABILITY IS EXPECTED ACROSS THE WARM SECTOR BY LATER THIS MORNING
WITH MLCAPE FROM 500-750 J/KG ACROSS FL PANHANDLE/SRN
GA...DEVELOPING INTO ERN SC/SERN NC LATER TODAY. BOTH OBSERVED AND
FORECAST HODOGRAPHS ARE QUITE IMPRESSIVE ACROSS THIS REGION...WITH
STRENGTHENING DEEP LAYER SHEAR/MID LEVEL FLOW THROUGH THE DAY. AS
SURFACE-BASED POTENTIAL INCREASES TODAY...SO TOO WILL THE THREAT OF
ISOLATED TORNADOES AND DAMAGING WINDS AS STORMS ORGANIZE INTO
SUPERCELLS AND FAST MOVING LINEAR SEGMENTS. MARGINALLY SEVERE HAIL
WILL ALSO REMAIN POSSIBLE OVER A SLIGHTLY LARGER AREA ASSOCIATED
WITH ELEVATED SUPERCELLS GIVEN MODEST MID LEVEL LAPSE RATES AND
STRONG CLOUD-LAYER SHEAR.

.EVANS.. 12/30/2007

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KPIH [301129]: Preliminary Local Storm Report

NWUS55 KPIH 301129
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
428 AM MST SUN DEC 30 2007

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

0425 AM HIGH SUST WINDS 8 S BELLEVUE 43.35N 114.26W
12/30/2007 U0 MPH BLAINE ID TRAINED SPOTTER

STRONG WINDS CAUSING NEAR BLIZZARD CONDITIONS.

&&

$$

RHD

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 300916
SWOD48
SPC AC 300915

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0315 AM CST SUN DEC 30 2007

VALID 021200Z - 071200Z

..DISCUSSION...

LATEST MEDIUM RANGE MODEL GUIDANCE SUGGESTS WLYS WILL BECOME A BIT
MORE ACTIVE TOWARD THE END OF THE PERIOD AS SEVERAL SHORTWAVE
TROUGHS MOVE ACROSS THE WRN U.S. INTO THE CENTRAL PORTIONS OF THE
COUNTRY. RETURN FLOW ON BACK SIDE OF LARGE SFC ANTICYCLONE WILL
INITIALLY BE OF CONTINENTAL NATURE. ANY SIGNIFICANT
MOISTENING/DESTABILIZATION WILL OCCUR TOWARD THE END OF THE WEEK AT
THE EARLIEST.

.DARROW.. 12/30/2007

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KLIX [300913]: Preliminary Local Storm Report

NWUS54 KLIX 300913
LSRLIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
312 AM CST SUN DEC 30 2007

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

0245 AM HAIL PRAIRIEVILLE 30.30N 90.97W
12/30/2007 E0.50 INCH ASCENSION LA LAW ENFORCEMENT

&&

$$

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 300808
SWODY3
SPC AC 300806

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0206 AM CST SUN DEC 30 2007

VALID 011200Z - 021200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...

ASIDE FROM A FEW WEAK THUNDERSTORMS ACROSS EXTREME SOUTH FL EARLY IN
THE PERIOD...DEEP MOIST CONVECTION WILL STRUGGLE TO DEVELOP OVER THE
CONUS DURING THE DAY3 PERIOD. NEEDLESS TO SAY...ANY ORGANIZED
SEVERE THREAT IS NEGLIGIBLE.

.DARROW.. 12/30/2007

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KLIX [300753]: Preliminary Local Storm Report

NWUS54 KLIX 300753
LSRLIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
153 AM CST SUN DEC 30 2007

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

0143 AM HAIL 2 NW GONZALES 30.24N 90.95W
12/30/2007 U0.25 INCH ASCENSION LA PUBLIC

PUBLIC WAS AWAKEN AND REPORTED SMALL HAIL HITTING ROOF TO
SHERIFFS OFFICE.

&&

$$

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KPDT [300740]: Preliminary Local Storm Report...summary

NWUS56 KPDT 300740
LSRPDT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
1140 PM PST SAT DEC 29 2007

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

0600 AM HEAVY SNOW 1 WSW MEACHAM 45.49N 118.44W
12/29/2007 M12.0 INCH UMATILLA OR TRAINED SPOTTER

12 INCHES OF NEW SNOW SINCE FRIDAY MORNING 12/28/2007.

0600 AM SNOW LA GRANDE 45.33N 118.09W
12/29/2007 M3.0 INCH UNION OR AMATEUR RADIO

3 INCHES OF NEW SNOW SINCE YESTERDAY. ELEVATION 2800
FEET.

0600 AM SNOW 4 NW MEACHAM 45.55N 118.48W
12/29/2007 M5.0 INCH UMATILLA OR AMATEUR RADIO

5 INCHES OF NEW SNOW SINCE 6 AM YESTERDAY. ELEVATION 3800
FEET.

0600 AM SNOW 3 N JOSEPH 45.40N 117.23W
12/29/2007 M1.0 INCH WALLOWA OR AMATEUR RADIO

1 INCH OF NEW SNOW OVER THE PAST 24 HOURS. ELEVATION 4000
FEET.

0909 AM SNOW N COVE 45.30N 117.81W
12/29/2007 M5.5 INCH UNION OR TRAINED SPOTTER

5.5 INCHES OF SNOW IN 24 HOURS. 8 INCHES TOTAL SNOW ON
GROUND. ELEVATION 3000 FEET.

0930 AM SNOW 1 ENE COVE 45.30N 117.79W
12/29/2007 E3.5 INCH UNION OR TRAINED SPOTTER

3 TO 4 INCHES OF NEW SNOW ESTIMATED. ELEVATION 3250 FEET.

0300 PM SNOW 8 NE WHITE SALMON 45.81N 121.37W
12/29/2007 M1.5 INCH KLICKITAT WA TRAINED SPOTTER

1.5 INCHES OF NEW SNOW SINCE 10 AM THIS MORNING.
CURRENTLY SNOWING AT TEMP OF 33F. 3 FEET OF TOTAL SNOW ON
THE GROUND. ELEVATION 2400 FEET.

&&

$$

APOLAN

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MESO: Mesoscale Discussion 2273

ACUS11 KWNS 300734
SWOMCD
SPC MCD 300734
ALZ000-FLZ000-MSZ000-LAZ000-300900-

MESOSCALE DISCUSSION 2273
NWS STORM PREDICTION CENTER NORMAN OK
0134 AM CST SUN DEC 30 2007

AREAS AFFECTED...S-CNTRL AND SERN LA / SERN MS / SWRN AL / WRN FL
PNHDL

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 300734Z - 300900Z

THE POTENTIAL WILL EXIST FOR MARGINALLY SEVERE HAIL WITH THE MOST
INTENSE ELEVATED STORMS EARLY THIS MORNING. IN ADDITION...LOCALLY
HEAVY RAINFALL WITH HOURLY RATES APPROACHING 1.0-1.5 INCHES WILL BE
POSSIBLE DUE TO TRAINING AND/OR BACKBUILDING OF STORMS.

LATEST MESOANALYSIS INDICATED A QUASI-STATIONARY BOUNDARY EXTENDING
FROM CNTRL GA SWWD THROUGH THE WRN FL PNHDL AND INTO THE NRN GULF OF
MEXICO. RUC OBJECTIVE FIELDS AND REGIONAL VWPS INDICATE THAT
WAA/ISENTROPIC ASCENT ASSOCIATED WITH A BROAD SWLY FLOW REGIME AT
850 MB IS LARGELY CONTRIBUTING TO ONGOING TSTMS N OF SURFACE FRONTAL
BOUNDARY. SHORT TERM MODEL GUIDANCE SUGGESTS THAT THIS AIR FLOW
PATTERN WILL CONTINUE THROUGH THE EARLY MORNING HOURS...GRADUALLY
STRENGTHENING WITH TIME IN RESPONSE TO APPROACH OF MIDLEVEL TROUGH
CURRENTLY OVER TX.

RUC PROXIMITY SOUNDINGS INDICATE THAT STORMS ARE ROOTED IN A
MOIST...ELEVATED AIR MASS ROUGHLY 0.5-1.5 KM AGL. THIS MOISTURE
COUPLED WITH RATHER STEEP MID-LEVEL LAPSE RATES ARE RESULTING IN
MODEST...ELEVATED INSTABILITY WITH MUCAPES OF 500-1000 J/KG.
MOREOVER...THESE DATA ALSO INDICATE THAT CLOUD BEARING SHEAR IS
SUPPORTIVE OF SOME UPDRAFT ROTATION WITH EFFECTIVE BULK SHEARS OF
35-40 KT. AS SUCH...SOME POTENTIAL WILL EXIST FOR ISOLATED...
MARGINALLY SEVERE HAIL WITH THE MOST INTENSE STORMS.
ADDITIONALLY...CORRIDORS OF LOCALLY EXCESSIVE RAINFALL WILL BE
POSSIBLE OWING TO TRAINING AND/OR BACKBUILDING STORMS WHERE HOURLY
RATES COULD APPROACH 1.0-1.5 INCHES.

.MEAD.. 12/30/2007

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

ATTN...WFO...TAE...BMX...MOB...JAN...LIX...LCH...

29589203 30909043 31948851 32308674 32208607 31618588
30758622 30018758 29338928 28959063 28899167

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KPDT [300735]: Preliminary Local Storm Report...summary

NWUS56 KPDT 300735
LSRPDT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
1135 PM PST SAT DEC 29 2007

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

0600 AM HEAVY SNOW 1 WSW MEACHAM 45.49N 118.44W
12/29/2007 M12.0 INCH UMATILLA OR TRAINED SPOTTER

12 INCHES OF NEW SNOW SINCE FRIDAY MORNING 12/28/2007.

0600 AM SNOW LA GRANDE 45.33N 118.09W
12/29/2007 M3.0 INCH UNION OR AMATEUR RADIO

3 INCHES OF NEW SNOW SINCE YESTERDAY. ELEVATION 2800
FEET.

0600 AM SNOW 4 NW MEACHAM 45.55N 118.48W
12/29/2007 M5.0 INCH UMATILLA OR AMATEUR RADIO

5 INCHES OF NEW SNOW SINCE 6 AM YESTERDAY. ELEVATION 3800
FEET.

0600 AM SNOW 3 N JOSEPH 45.40N 117.23W
12/29/2007 M1.0 INCH WALLOWA OR AMATEUR RADIO

1 INCH OF NEW SNOW OVER THE PAST 24 HOURS. ELEVATION 4000
FEET.

0909 AM SNOW N COVE 45.30N 117.81W
12/29/2007 M5.5 INCH UNION OR TRAINED SPOTTER

5.5 INCHES OF SNOW IN 24 HOURS. 8 INCHES TOTAL SNOW ON
GROUND. ELEVATION 3000 FEET.

0300 PM SNOW 8 NE WHITE SALMON 45.81N 121.37W
12/29/2007 M1.5 INCH KLICKITAT WA TRAINED SPOTTER

1.5 INCHES OF NEW SNOW SINCE 10 AM THIS MORNING.
CURRENTLY SNOWING AT TEMP OF 33F. 3 FEET OF TOTAL SNOW ON
THE GROUND. ELEVATION 2400 FEET.

&&

$$

APOLAN

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KSEW [300723]: Preliminary Local Storm Report

NWUS56 KSEW 300723
LSRSEW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1123 PM PST SAT DEC 29 2007

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

1121 PM HAIL 1 NE FORKS 47.96N 124.38W
12/29/2007 E0.50 INCH CLALLAM WA TRAINED SPOTTER

&&

$$

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 300548
SWODY1
SPC AC 300546

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1146 PM CST SAT DEC 29 2007

VALID 301200Z - 311200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
SHORT WAVE TROUGH EXPECTED TO BE OVER TX/OK AT 12Z TODAY WILL TRACK
NEWD INTO THE TN VALLEY BY 31/00Z...AS IT PHASES WITH A FEW NRN
STREAM IMPULSES MOVING ESEWD TOWARD THE OH/TN VALLEYS. THE PHASED
TROUGH SHOULD THEN BECOME MORE NEGATIVELY TILTED AS IT MOVES QUICKLY
NEWD ACROSS THE MID ATLANTIC REGION TO SRN NEW ENGLAND TONIGHT. AT
12Z TODAY...A SURFACE BOUNDARY SHOULD EXTEND FROM THE CAROLINAS SWWD
TO SRN AL AND THEN INTO THE NWRN GULF. A SURFACE WAVE LOCATED ALONG
THIS BOUNDARY...INITIALLY OVER THE NORTH CENTRAL GULF OR SRN AL...IS
EXPECTED TO TRACK NEWD INTO NRN GA AND THEN THE CENTRAL CAROLINAS
THIS AFTERNOON. RAPID DEEPENING OF THIS LOW IS THEN FORECAST SUNDAY
NIGHT FROM THE DELMARVA REGION NEWD TO JUST OFF OF CAPE COD WITH
APPROACH OF NEGATIVELY TILT UPPER TROUGH. TRAILING PORTION OF THE
SURFACE BOUNDARY FROM THE LOW WILL EVOLVE INTO A COLD FRONT MOVING
EWD ACROSS SRN AL TO GA/FL PANHANDLE DURING THE FIRST HALF OF THE
FORECAST PERIOD...AND SHOULD EXTEND SWWD ACROSS THE ERN CAROLINAS TO
SRN GA/ERN FL PANHANDLE INTO THE ERN GULF BY EARLY EVENING.

..NERN GULF COAST STATES TO CAROLINAS...
TSTMS...MOSTLY LOCATED ALONG AND N OF THE SURFACE BOUNDARY...ARE
EXPECTED TO BE ONGOING AT 12Z TODAY FROM THE LOWER MS VALLEY INTO
PARTS OF MS TO GA/FL PANHANDLE WITHIN ZONE OF WEAK WAA/ISENTROPIC
ASCENT. MODELS SUGGEST THE STRONGEST FORCING WITH THE PHASING
TROUGHS AND GREATEST HEIGHT FALLS SHOULD REMAIN N OF THE SURFACE
FRONT AND WARM SECTOR. HOWEVER...ASCENT WITHIN ENTRANCE REGION OF
STRENGTHENING MID LEVEL JET ACCOMPANYING THE SRN STREAM TROUGH IS
EXPECTED TO TRANSLATE ENEWD FROM THE LOWER MS VALLEY AT 12Z TO THE
SERN STATES BY EARLY EVENING. THIS ASCENT COMBINED WITH MOISTURE
ADVECTION ALONG STRONG SWLY LLJ ORIENTED PARALLEL TO THE SURFACE
BOUNDARY WILL SUPPORT SUFFICIENT DESTABILIZATION...DESPITE WEAK
LAPSE RATES...FOR ADDITIONAL TSTM DEVELOPMENT THROUGH THE FORECAST
PERIOD. GIVEN DEEP SWLY WIND FIELDS...MODELS SUGGEST THE POTENTIAL
FOR SEVERAL BANDS/LINES OF TSTMS TO DEVELOP ALONG AND EAST OF THE
PROGRESSIVE COLD FRONT/SURFACE LOW INTO THE AFTERNOON/EARLY EVENING.
OVERALL WEAK INSTABILITY IS EXPECTED TO LIMIT THE DEVELOPMENT OF
SEVERE TSTMS. HOWEVER...EFFECTIVE BULK SHEAR OF 35-45 KT AND LOW
LEVEL SPEED SHEAR AND SOME DIRECTIONAL SHEAR SUGGEST THE STRONGER
STORMS MAY BECOME ORGANIZED WITH THE POTENTIAL FOR ISOLATED DAMAGING
WINDS AND/OR A BRIEF TORNADO. IF GREATER INSTABILITY IS EXPECTED
ESPECIALLY INTO PARTS OF ERN GA/CAROLINAS THIS AFTERNOON...THEN
PARTS OF THIS REGION MAY REQUIRE AN UPGRADE TO A CATEGORICAL
OUTLOOK.

.PETERS.. 12/30/2007

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 300511
SWODY2
SPC AC 300509

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1109 PM CST SAT DEC 29 2007

VALID 311200Z - 011200Z

..NO SVR TSTM AREAS FORECAST...

..SOUTH FL...

EXPANSIVE AND DOMINANT SFC HIGH...CENTERED OVER THE CNTRL
ROCKIES...WILL BUILD SEWD ACROSS MUCH OF THE CONUS DURING THE DAY2
PERIOD RESULTING IN STRENGTHENING OFFSHORE FLOW ALONG THE GULF
COAST. A PREFRONTAL WIND SHIFT WILL DEVELOP WELL AHEAD OF MAIN COLD
FRONT ACROSS THE CNTRL FL PENINSULA WHICH WILL SERVE AS THE
DEMARKATION BETWEEN MOIST/WEAK LAPSE RATE ENVIRONMENT AND MORE
CONTINENTAL AIRMASS FARTHER NW. AHEAD OF THE PREFRONTAL WIND
SHIFT...FORECAST SOUNDINGS SUGGEST WEAK BUOYANCY IF LIFTING SFC
BASED PARCELS AS TEMPERATURES RISE TO NEAR 80F. LOW LEVEL
CONVERGENCE MAY PROVE ADEQUATE IN THE DEVELOPMENT OF ISOLATED
THUNDERSTORMS...HOWEVER INTENSITY OF UPDRAFTS SHOULD REMAIN RATHER
WEAK GIVEN THE THERMODYNAMIC ENVIRONMENT.

..OH VALLEY...

STRONG SPEED MAX WILL APPROACH THE UPPER OH VALLEY DURING THE LATTER
HALF OF THE DAY2 PERIOD. FOCUSED LARGE SCALE ASCENT WITHIN EXIT
REGION OF THIS FEATURE WILL ENHANCE CONVECTIVE POTENTIAL ALONG SHARP
FRONTAL ZONE. ALTHOUGH PROFILES ARE EXPECTED TO REMAIN QUITE
COLD...FORECAST SOUNDINGS SUGGEST VERY STEEP LAPSE RATES THAT SHOULD
RESULT IN SOME CONVECTION ACROSS THIS REGION. AT THIS TIME IT
APPEARS LIGHTNING ACTIVITY WILL REMAIN QUITE SPARSE...DUE MOSTLY TO
SHALLOW CLOUD DEPTH...THOUGH NOT ENTIRELY OUT OF THE QUESTION GIVEN
THE STRENGTH OF THE APPROACHING SYSTEM.

.DARROW.. 12/30/2007

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