KDMX [061803]: Preliminary Local Storm Report

NWUS53 KDMX 061803
LSRDMX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1202 PM CST THU DEC 06 2007

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

1159 AM SNOW CARROLL 42.07N 94.86W
12/06/2007 E1.0 INCH CARROLL IA LAW ENFORCEMENT

&&

$$

MRUSSELL

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KDMX [061800]: Preliminary Local Storm Report

NWUS53 KDMX 061800
LSRDMX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1200 PM CST THU DEC 06 2007

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

1159 AM SNOW DENISON 42.02N 95.35W
12/06/2007 E3.0 INCH CRAWFORD IA FIRE DEPT/RESCUE

&&

$$

MRUSSELL

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KMPX [061756]: Preliminary Local Storm Report

NWUS53 KMPX 061756
LSRMPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1156 AM CST THU DEC 06 2007

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

1155 AM SNOW CUSHING 46.19N 94.56W
12/06/2007 M2.0 INCH MORRISON MN TRAINED SPOTTER

&&

$$

KAT

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KFSD [061745]: Preliminary Local Storm Report

NWUS53 KFSD 061745
LSRFSD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1145 AM CST THU DEC 06 2007

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

1144 AM SNOW SIOUX CITY 42.50N 96.39W
12/06/2007 M2.1 INCH WOODBURY IA CO-OP OBSERVER

SNOW OBSERVER REPORTS 2.1 INCHES OF SNOW SHORTLY BEFORE
NOON.

&&

$$

MJF

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KBOU [061744]: Preliminary Local Storm Report...summary

NWUS55 KBOU 061744
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
1044 AM MST THU DEC 06 2007

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

0840 AM HEAVY SNOW GEORGETOWN 39.72N 105.70W
12/06/2007 M6.1 INCH CLEAR CREEK CO TRAINED SPOTTER

0800 AM SNOW KREMMLING 40.06N 106.38W
12/06/2007 M3.0 INCH GRAND CO CO-OP OBSERVER

0730 AM SNOW GRANT 39.45N 105.67W
12/06/2007 M3.0 INCH PARK CO TRAINED SPOTTER

0700 AM HEAVY SNOW 1 NW ROLLINSVILLE 39.93N 105.51W
12/06/2007 M6.1 INCH BOULDER CO AMATEUR RADIO

0700 AM HEAVY SNOW 1 NW NEDERLAND 39.97N 105.52W
12/06/2007 M6.3 INCH BOULDER CO AMATEUR RADIO

0700 AM SNOW JEFFERSON 39.38N 105.80W
12/06/2007 M1.0 INCH PARK CO AMATEUR RADIO

0700 AM SNOW CONIFER 39.52N 105.30W
12/06/2007 M2.2 INCH JEFFERSON CO AMATEUR RADIO

0700 AM SNOW 5 N BAILEY 39.47N 105.47W
12/06/2007 M1.3 INCH PARK CO AMATEUR RADIO

0700 AM SNOW ASPEN SPRINGS 39.83N 105.48W
12/06/2007 M5.0 INCH GILPIN CO AMATEUR RADIO

0650 AM HEAVY SNOW BERTHOUD PASS 39.80N 105.78W
12/06/2007 M17.0 INCH CLEAR CREEK CO TRAINED SPOTTER

SNOWFALL RATE 2.0 INCHES PER HOUR

0650 AM HEAVY SNOW ST MARYS GLACIER 39.84N 105.65W
12/06/2007 M11.0 INCH CLEAR CREEK CO TRAINED SPOTTER

0600 AM HEAVY SNOW 5 S GEORGETOWN 39.64N 105.70W
12/06/2007 M14.0 INCH CLEAR CREEK CO CO-OP OBSERVER

0550 AM SNOW 6 SW BAILEY 39.34N 105.55W
12/06/2007 M1.5 INCH PARK CO TRAINED SPOTTER

0500 AM SNOW BRECKENRIDGE 39.51N 106.05W
12/06/2007 M4.0 INCH SUMMIT CO TRAINED SPOTTER

0500 AM HEAVY SNOW 2 SW WINTER PARK 39.87N 105.81W
12/06/2007 M10.5 INCH GRAND CO TRAINED SPOTTER

0450 AM HEAVY SNOW 11 WNW DILLON 39.69N 106.23W
12/06/2007 M9.5 INCH SUMMIT CO DEPT OF HIGHWAYS

0438 AM HEAVY SNOW 5 S BRECKENRIDGE 39.44N 106.05W
12/06/2007 M8.5 INCH SUMMIT CO TRAINED SPOTTER

&&

$$

JK

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KOAX [061744]: Preliminary Local Storm Report

NWUS53 KOAX 061744
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1144 AM CST THU DEC 06 2007

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

1130 AM SNOW 7 NE LINCOLN 40.89N 96.59W
12/06/2007 M3.0 INCH LANCASTER NE AMATEUR RADIO

&&

$$

JE.KLISH

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KOAX [061734]: Preliminary Local Storm Report

NWUS53 KOAX 061734
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1134 AM CST THU DEC 06 2007

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

1132 AM SNOW AUBURN 40.39N 95.84W
12/06/2007 M2.0 INCH NEMAHA NE CO-OP OBSERVER

1132 AM SNOW OAKDALE 42.07N 97.97W
12/06/2007 E4.0 INCH ANTELOPE NE CO-OP OBSERVER

1132 AM SNOW SCRIBNER 41.66N 96.66W
12/06/2007 E4.0 INCH DODGE NE CO-OP OBSERVER

1133 AM SNOW WEST POINT 41.84N 96.71W
12/06/2007 E3.0 INCH CUMING NE CO-OP OBSERVER

1133 AM SNOW BLOOMFIELD 42.60N 97.65W
12/06/2007 E0.1 INCH KNOX NE CO-OP OBSERVER

ALSO HAD 0.01 INCHES OF ICE ALONG WITH THE SNOW.

&&

$$

JB

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KGID [061735]: Preliminary Local Storm Report

NWUS53 KGID 061735
LSRGID

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1135 AM CST THU DEC 06 2007

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

1100 AM SNOW GRAND ISLAND 40.92N 98.37W
12/06/2007 M4.0 INCH HALL NE PUBLIC

1130 AM SNOW 2 N GRAND ISLAND 40.95N 98.37W
12/06/2007 M5.2 INCH HALL NE NWS EMPLOYEE

&&

$$

KISNER

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 061734
SWODY2
SPC AC 061646

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
ISSUED BY AFWA OFFUTT AIR FORCE BASE BELLEVUE NE
1046 AM CST THU DEC 06 2007

VALID 071200Z - 081200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
HIGHLY ZONAL FLOW IS SLOWLY TRANSITIONING TO A MORE MERIDIONAL
PATTERN OVER THE WESTERN U.S. ASSOCIATED WITH A DEEPENING SHORT WAVE
TROUGH. MODELS SEEM TO BE IN GENERAL AGREEMENT WITH THE TIMING AND
PLACEMENT OF THIS FEATURE...THE TROUGH AXIS BEGINS THE PERIOD
POSITIONED OVER NORTHERN CALIFORNIA AND TRACKS SOUTHEASTWARD...
TAKING ON A MORE POSITIVELY TILTED AXIS THROUGH THE PERIOD.
MEANWHILE...DOWNSTREAM UPPER RIDGE GRADUALLY BUILDS FROM THE NORTH
CENTRAL PLAINS THROUGH THE GULF COAST IN RESPONSE TO THE AMPLIFYING
UPSTREAM SHORT WAVE TROUGH.

..GREAT BASIN REGION...
PARAMETERS ARE IN PLACE TO WARRANT MENTION OF ISOLATED LIGHTNING
STRIKES ACROSS EASTERN HALF OF UTAH AS UPPER SHORT WAVE TROUGH
APPROACHES AND MOVE ACROSS THIS REGION THROUGH FRIDAY NIGHT.
SUFFICIENT MOISTURE AND STEEPENING LAPSE RATES ASSOCIATED WITH THE
SHORT WAVE TROUGH WILL SUPPORT WEAK 700-500MB LIFTED INDICES AROUND
0C TO -1C. GIVEN PRESENCE OF STRONG SYNOPTIC SCALE FORCING FOR
ASCENT...IN ADDITION TO OROGRAPHIC LIFT...A COUPLE OF THUNDERSTORMS
ARE NOT OUT OF THE QUESTION.

.AFWA.. 12/06/2007

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KOAX [061728]: Preliminary Local Storm Report

NWUS53 KOAX 061728
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1128 AM CST THU DEC 06 2007

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

1128 AM SNOW VALLEY 41.31N 96.35W
12/06/2007 M3.5 INCH DOUGLAS NE NWS EMPLOYEE

&&

$$

JB

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KTOP [061721]: Preliminary Local Storm Report

NWUS53 KTOP 061721
LSRTOP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1120 AM CST THU DEC 06 2007

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

1115 AM SNOW 1 NW CORNING 39.67N 96.04W
12/06/2007 M4.0 INCH NEMAHA KS TRAINED SPOTTER

&&

$$

EK

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 061715
SWODY1
SPC AC 061610

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
ISSUED BY AFWA OFFUTT AIR FORCE BASE BELLEVUE NE
1010 AM CST THU DEC 06 2007

VALID 061630Z - 071200Z

..NO TSTM AREAS FORECAST...

..SYNOPSIS...

FAST WESTERLY FLOW WILL DOMINATE MOST OF THE COUNTRY WITH A 150 KNOT
JET MAX LOCATED IN THE CENTRAL US. A TROUGH IS DIGGING SOUTHWARD
INTO THE PACIFIC NORTHWEST WITH A -28C COLD CORE ALONG THE TROUGH
AXIS. MOST AREAS ARE QUITE DRY...WITH SOME DEEPER MOISTURE OFF THE
SOUTHERN CALIFORNIA AND GULF COASTS.

..PACIFIC COAST...

SOME WEAK INSTABILITY IS ASSOCIATED WITH THE APPROACH OF THE COLD
CORE OFF THE COAST OF OREGON...WITH LI VALUES APPROACHING ZERO. NO
LIGHTNING STRIKES HAVE BEEN OBSERVED WITH THIS FEATURE IN THE LAST
FEW HOURS...AND THIS AREA IS EXPECTED TO STAY MAINLY OFFSHORE
THROUGH THE FORECAST PERIOD.

..TEXAS GULF COAST...

SHALLOW MOISTURE IS EXPECTED TO ADVECT NORTHWARD INTO SOUTHERN TEXAS
DURING THE FORECAST PERIOD...WITH SURFACE DEWPOINTS RISING INTO THE
LOWER AND MID 60S. THIS WILL OCCUR UNDER A WEAK CAPPING INVERSION
SO THAT CONVECTIVE AND LIGHTNING PROBABILITIES REMAIN LOW.

..SOUTH FLORIDA COAST...

CONVECTION IS ONGOING ALONG A WEAK FRONTAL BOUNDARY SOUTH OF
FLORIDA. A FEW LIGHTNING STRIKES HAVE BEEN NOTED WITH THE STRONGEST
CONVECTION OFFSHORE...BUT GIVEN THE WEAK INSTABILITY LIGHTNING
PROBABILITIES ARE LOW...ESPECIALLY INLAND.

.AFWA.. 12/06/2007

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KOAX [061715]: Preliminary Local Storm Report

NWUS53 KOAX 061715
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1115 AM CST THU DEC 06 2007

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

1115 AM SNOW PIERCE 42.20N 97.53W
12/06/2007 M5.0 INCH PIERCE NE CO-OP OBSERVER

&&

$$

JB

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KOAX [061658]: Preliminary Local Storm Report

NWUS53 KOAX 061658
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1058 AM CST THU DEC 06 2007

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

0953 AM SNOW LITTLE SIOUX 41.81N 96.03W
12/06/2007 M1.3 INCH HARRISON IA TRAINED SPOTTER

&&

$$

JB

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KOAX [061654]: Preliminary Local Storm Report

NWUS53 KOAX 061654
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1054 AM CST THU DEC 06 2007

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

1053 AM SNOW LINCOLN 40.82N 96.69W
12/06/2007 M3.2 INCH LANCASTER NE BROADCAST MEDIA

&&

$$

JB

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 061647
SWODY2
SPC AC 061646

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
ISSUED BY AFWA OFFUTT AIR FORCE BASE BELLEVUE NE
1046 AM CST THU DEC 06 2007

VALID 071200Z - 081200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
HIGHLY ZONAL FLOW IS SLOWLY TRANSITIONING TO A MORE MERIDIONAL
PATTERN OVER THE WESTERN U.S. ASSOCIATED WITH A DEEPENING SHORT WAVE
TROUGH. MODELS SEEM TO BE IN GENERAL AGREEMENT WITH THE TIMING AND
PLACEMENT OF THIS FEATURE...THE TROUGH AXIS BEGINS THE PERIOD
POSITIONED OVER NORTHERN CALIFORNIA AND TRACKS SOUTHEASTWARD...
TAKING ON A MORE POSITIVELY TILTED AXIS THROUGH THE PERIOD.
MEANWHILE...DOWNSTREAM UPPER RIDGE GRADUALLY BUILDS FROM THE NORTH
CENTRAL PLAINS THROUGH THE GULF COAST IN RESPONSE TO THE AMPLIFYING
UPSTREAM SHORT WAVE TROUGH.

..GREAT BASIN REGION...
PARAMETERS ARE IN PLACE TO WARRANT MENTION OF ISOLATED LIGHTNING
STRIKES ACROSS EASTERN HALF OF UTAH AS UPPER SHORT WAVE TROUGH
APPROACHES AND MOVE ACROSS THIS REGION THROUGH FRIDAY NIGHT.
SUFFICIENT MOISTURE AND STEEPENING LAPSE RATES ASSOCIATED WITH THE
SHORT WAVE TROUGH WILL SUPPORT WEAK 700-500MB LIFTED INDICES AROUND
0C TO -1C. GIVEN PRESENCE OF STRONG SYNOPTIC SCALE FORCING FOR
ASCENT...IN ADDITION TO OROGRAPHIC LIFT...A COUPLE OF THUNDERSTORMS
ARE NOT OUT OF THE QUESTION.

.AFWA.. 12/06/2007

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KMKX [061627]: Preliminary Local Storm Report

NWUS53 KMKX 061627
LSRMKX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1027 AM CST THU DEC 06 2007

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

1159 PM SNOW 1 N SUN PRAIRIE 43.20N 89.23W
12/04/2007 M6.5 INCH DANE WI TRAINED SPOTTER

0745 AM HEAVY SNOW MILWAUKEE 43.03N 87.92W
12/05/2007 M8.0 INCH MILWAUKEE WI COUNTY OFFICIAL

BURST OF LAKE EFFECT SNOW FROM 430 AM UNTIL 630 AM.

1200 PM HEAVY SNOW 3 WNW LAKE MILLS 43.09N 88.96W
12/05/2007 M6.6 INCH JEFFERSON WI PUBLIC

DRIFTING SNOW.

&&

$$

GD

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KTOP [061621]: Preliminary Local Storm Report

NWUS53 KTOP 061621
LSRTOP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1021 AM CST THU DEC 06 2007

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

1015 AM SNOW 6 SSE HADDAM 39.78N 97.26W
12/06/2007 M3.5 INCH WASHINGTON KS TRAINED SPOTTER

SLEET/SNOW MIX BEGAN AROUND 6AM...AND SWITCHED OVER TO
ALL SNOW JUST BEFORE 7AM. 3.5 INCHES OF SNOW ON GROUND AS
OF 1015AM.

&&

$$

EK

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 061611
SWODY1
SPC AC 061610

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
ISSUED BY AFWA OFFUTT AIR FORCE BASE BELLEVUE NE
1010 AM CST THU DEC 06 2007

VALID 061630Z - 071200Z

..NO TSTM AREAS FORECAST...

..SYNOPSIS...

FAST WESTERLY FLOW WILL DOMINATE MOST OF THE COUNTRY WITH A 150 KNOT
JET MAX LOCATED IN THE CENTRAL US. A TROUGH IS DIGGING SOUTHWARD
INTO THE PACIFIC NORTHWEST WITH A -28C COLD CORE ALONG THE TROUGH
AXIS. MOST AREAS ARE QUITE DRY...WITH SOME DEEPER MOISTURE OFF THE
SOUTHERN CALIFORNIA AND GULF COASTS.

..PACIFIC COAST...

SOME WEAK INSTABILITY IS ASSOCIATED WITH THE APPROACH OF THE COLD
CORE OFF THE COAST OF OREGON...WITH LI VALUES APPROACHING ZERO. NO
LIGHTNING STRIKES HAVE BEEN OBSERVED WITH THIS FEATURE IN THE LAST
FEW HOURS...AND THIS AREA IS EXPECTED TO STAY MAINLY OFFSHORE
THROUGH THE FORECAST PERIOD.

..TEXAS GULF COAST...

SHALLOW MOISTURE IS EXPECTED TO ADVECT NORTHWARD INTO SOUTHERN TEXAS
DURING THE FORECAST PERIOD...WITH SURFACE DEWPOINTS RISING INTO THE
LOWER AND MID 60S. THIS WILL OCCUR UNDER A WEAK CAPPING INVERSION
SO THAT CONVECTIVE AND LIGHTNING PROBABILITIES REMAIN LOW.

..SOUTH FLORIDA COAST...

CONVECTION IS ONGOING ALONG A WEAK FRONTAL BOUNDARY SOUTH OF
FLORIDA. A FEW LIGHTNING STRIKES HAVE BEEN NOTED WITH THE STRONGEST
CONVECTION OFFSHORE...BUT GIVEN THE WEAK INSTABILITY LIGHTNING
PROBABILITIES ARE LOW...ESPECIALLY INLAND.

.AFWA.. 12/06/2007

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KDLH [061605]: Preliminary Local Storm Report

NWUS53 KDLH 061605
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1004 AM CST THU DEC 06 2007

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

0908 AM SNOW 3 NE NISSWA 46.53N 94.25W
12/06/2007 M0.3 INCH CROW WING MN TRAINED SPOTTER

0959 AM SNOW 7 NW DULUTH 46.85N 92.22W
12/06/2007 M0.5 INCH ST. LOUIS MN OFFICIAL NWS OBS

DULUTH NWS OFFICE

1000 AM SNOW 6 WSW SQUAW LAKE 47.59N 94.26W
12/06/2007 M0.5 INCH ITASCA MN TRAINED SPOTTER

DIXON LAKE

&&

$$

TLONKA

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KPUB [061603]: Preliminary Local Storm Report

NWUS55 KPUB 061603
LSRPUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
903 AM MST THU DEC 06 2007

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

0621 AM SNOW 1 N WOLF CREEK PASS 37.48N 106.79W
12/06/2007 M4.0 INCH MINERAL CO PUBLIC

&&

$$

MN

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KOAX [061601]: Preliminary Local Storm Report

NWUS53 KOAX 061601
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1001 AM CST THU DEC 06 2007

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

0900 AM SNOW 1 N VALLEY 41.33N 96.35W
12/06/2007 M0.8 INCH DOUGLAS NE NWS EMPLOYEE

0.8 SNOW FALL AT NWS OFFICE.

&&

$$

LANDSVORK

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KBOU [061545]: Preliminary Local Storm Report...summary

NWUS55 KBOU 061545
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
845 AM MST THU DEC 06 2007

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

0840 AM HEAVY SNOW GEORGETOWN 39.72N 105.70W
12/06/2007 M6.1 INCH CLEAR CREEK CO TRAINED SPOTTER

0730 AM SNOW GRANT 39.45N 105.67W
12/06/2007 M3.0 INCH PARK CO TRAINED SPOTTER

0700 AM SNOW ASPEN SPRINGS 39.83N 105.48W
12/06/2007 M5.0 INCH GILPIN CO AMATEUR RADIO

0700 AM SNOW 5 N BAILEY 39.47N 105.47W
12/06/2007 M1.3 INCH PARK CO AMATEUR RADIO

0700 AM SNOW CONIFER 39.52N 105.30W
12/06/2007 M2.2 INCH JEFFERSON CO AMATEUR RADIO

0700 AM SNOW JEFFERSON 39.38N 105.80W
12/06/2007 M1.0 INCH PARK CO AMATEUR RADIO

0700 AM HEAVY SNOW 1 NW NEDERLAND 39.97N 105.52W
12/06/2007 M6.3 INCH BOULDER CO AMATEUR RADIO

0700 AM HEAVY SNOW 1 NW ROLLINSVILLE 39.93N 105.51W
12/06/2007 M6.1 INCH BOULDER CO AMATEUR RADIO

0650 AM HEAVY SNOW BERTHOUD PASS 39.80N 105.78W
12/06/2007 M17.0 INCH CLEAR CREEK CO TRAINED SPOTTER

SNOWFALL RATE 2.0 INCHES PER HOUR

0650 AM HEAVY SNOW ST MARYS GLACIER 39.84N 105.65W
12/06/2007 M11.0 INCH CLEAR CREEK CO TRAINED SPOTTER

0600 AM HEAVY SNOW 5 S GEORGETOWN 39.64N 105.70W
12/06/2007 M14.0 INCH CLEAR CREEK CO AMATEUR RADIO

0550 AM SNOW 6 SW BAILEY 39.34N 105.55W
12/06/2007 M1.5 INCH PARK CO TRAINED SPOTTER

0500 AM SNOW BRECKENRIDGE 39.51N 106.05W
12/06/2007 M4.0 INCH SUMMIT CO TRAINED SPOTTER

0500 AM HEAVY SNOW 2 SW WINTER PARK 39.87N 105.81W
12/06/2007 M10.5 INCH GRAND CO TRAINED SPOTTER

0450 AM HEAVY SNOW 11 WNW DILLON 39.69N 106.23W
12/06/2007 M9.5 INCH SUMMIT CO DEPT OF HIGHWAYS

0438 AM HEAVY SNOW 5 S BRECKENRIDGE 39.44N 106.05W
12/06/2007 M8.5 INCH SUMMIT CO TRAINED SPOTTER

&&

$$

JK

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KFSD [061546]: Preliminary Local Storm Report

NWUS53 KFSD 061546
LSRFSD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
946 AM CST THU DEC 06 2007

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

0945 AM SNOW SIOUX CITY 42.50N 96.39W
12/06/2007 M1.0 INCH WOODBURY IA CO-OP OBSERVER

SNOW OBSERVER REPORTS ONE INCH AT ABOUT 945 AM.

&&

$$

MJF

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KFSD [061541]: Preliminary Local Storm Report

NWUS53 KFSD 061541
LSRFSD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
941 AM CST THU DEC 06 2007

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

0935 AM HEAVY SNOW SIOUX CITY 42.50N 96.39W
12/06/2007 U0.0 INCH WOODBURY IA TRAINED SPOTTER

NEAR THE SIOUX CITY AIRPORT. REPORTED MODERATE TO HEAVY
SNOW. VISIBILITY 200 TO 300 YARDS WITH SNOW AND BLOWING
SNOW. GRASS IS NEARLY COVERED.

&&

$$

MJF

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KMPX [061529]: Preliminary Local Storm Report

NWUS53 KMPX 061529
LSRMPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
929 AM CST THU DEC 06 2007

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

0928 AM SNOW MANKATO 44.17N 93.99W
12/06/2007 M1.0 INCH BLUE EARTH MN TRAINED SPOTTER

MOSTLY LIGHT SNOW HAS FALLEN THIS MORNING BUT RECENTLY
HAS BECOME MORE MODERATE.

&&

$$

KAT

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KOAX [061507]: Preliminary Local Storm Report

NWUS53 KOAX 061507
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
907 AM CST THU DEC 06 2007

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

0907 AM SNOW NEWMAN GROVE 41.75N 97.78W
12/06/2007 E3.0 INCH MADISON NE PUBLIC

&&

$$

JB

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KLBF [061507]: Preliminary Local Storm Report

NWUS53 KLBF 061507
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
906 AM CST THU DEC 06 2007

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

0850 AM HEAVY SNOW 12 SW AMELIA 42.11N 99.13W
12/06/2007 M6.0 INCH HOLT NE PUBLIC

SIX INCHES OF SNOW SINCE 4AM.

&&

$$

BTAYLOR

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KLBF [061505]: Preliminary Local Storm Report

NWUS53 KLBF 061505
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
904 AM CST THU DEC 06 2007

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

0850 AM HEAVY SNOW SWAN LAKE 42.18N 99.09W
12/06/2007 M7.0 INCH HOLT NE CO-OP OBSERVER

SEVEN INCHES OF SNOW SINCE MIDNIGHT.

&&

$$

BTAYLOR

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KBOU [061454]: Preliminary Local Storm Report...summary

NWUS55 KBOU 061454
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
754 AM MST THU DEC 06 2007

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

0730 AM SNOW GRANT 39.45N 105.67W
12/06/2007 M3.0 INCH PARK CO TRAINED SPOTTER

0650 AM HEAVY SNOW BERTHOUD PASS 39.80N 105.78W
12/06/2007 M17.0 INCH CLEAR CREEK CO TRAINED SPOTTER

SNOWFALL RATE 2.0 INCHES PER HOUR

0650 AM HEAVY SNOW ST MARYS GLACIER 39.84N 105.65W
12/06/2007 M11.0 INCH CLEAR CREEK CO TRAINED SPOTTER

0600 AM HEAVY SNOW 5 S GEORGETOWN 39.64N 105.70W
12/06/2007 M14.0 INCH CLEAR CREEK CO AMATEUR RADIO

0550 AM SNOW 6 SW BAILEY 39.34N 105.55W
12/06/2007 M1.5 INCH PARK CO TRAINED SPOTTER

0500 AM SNOW BRECKENRIDGE 39.51N 106.05W
12/06/2007 M4.0 INCH SUMMIT CO TRAINED SPOTTER

0500 AM HEAVY SNOW 2 SW WINTER PARK 39.87N 105.81W
12/06/2007 M10.5 INCH GRAND CO TRAINED SPOTTER

0450 AM HEAVY SNOW 11 WNW DILLON 39.69N 106.23W
12/06/2007 M9.5 INCH SUMMIT CO DEPT OF HIGHWAYS

0438 AM HEAVY SNOW 5 S BRECKENRIDGE 39.44N 106.05W
12/06/2007 M8.5 INCH SUMMIT CO TRAINED SPOTTER

&&

$$

JK

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KICT [061448]: Preliminary Local Storm Report

NWUS53 KICT 061448
LSRICT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
848 AM CST THU DEC 06 2007

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

0804 AM FREEZING RAIN N SUSANK 38.64N 98.78W
12/06/2007 E0.13 INCH BARTON KS TRAINED SPOTTER

AN EIGHTH OF AN INCH OF GLAZE MAINLY ON ELEVATED
SURFACES.

&&

$$

CDB

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KTOP [061445]: Preliminary Local Storm Report

NWUS53 KTOP 061445
LSRTOP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
843 AM CST THU DEC 06 2007

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

0830 AM SNOW 5 SW SCANDIA 39.74N 97.85W
12/06/2007 M2.5 INCH REPUBLIC KS TRAINED SPOTTER

A THIN COATING OF ICE ON THE GROUND...FOLLOWED BY 2.5
INCHES OF SNOW. ALL SNOW FALLING AT 830AM.

&&

$$

EK

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KOAX [061444]: Preliminary Local Storm Report

NWUS53 KOAX 061444
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
844 AM CST THU DEC 06 2007

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

0810 AM SNOW TECUMSEH 40.37N 96.19W
12/06/2007 M0.5 INCH JOHNSON NE CO-OP OBSERVER

SNOW TOTAL THROUGH 830 AM.

&&

$$

JB

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KPUB [061424]: Preliminary Local Storm Report

NWUS55 KPUB 061424
LSRPUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
724 AM MST THU DEC 06 2007

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

0600 AM SNOW CLIMAX 39.37N 106.18W
12/06/2007 M10.0 INCH LAKE CO CO-OP OBSERVER

.69 INCHES WATER EQUIVALENT.

0717 AM SNOW 6 NW BUENA VISTA 38.91N 106.21W
12/06/2007 M2.0 INCH CHAFFEE CO TRAINED SPOTTER

&&

$$

MN

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KOAX [061411]: Preliminary Local Storm Report

NWUS53 KOAX 061411
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
811 AM CST THU DEC 06 2007

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

0810 AM SNOW SEWARD 40.91N 97.10W
12/06/2007 M1.0 INCH SEWARD NE CO-OP OBSERVER

&&

$$

JB

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KICT [061411]: Preliminary Local Storm Report

NWUS53 KICT 061411
LSRICT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
811 AM CST THU DEC 06 2007

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

0804 AM FREEZING RAIN NORWICH 37.46N 97.85W
12/06/2007 E0.13 INCH KINGMAN KS CO-OP OBSERVER

AN EIGHTH OF AN INCH OF GLAZE MAINLY ON ELEVATED
SURFACES.

&&

$$

CDB

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KBOU [061402]: Preliminary Local Storm Report...summary

NWUS55 KBOU 061402
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
701 AM MST THU DEC 06 2007

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

0650 AM HEAVY SNOW BERTHOUD PASS 39.80N 105.78W
12/06/2007 M17.0 INCH CLEAR CREEK CO TRAINED SPOTTER

SNOWFALL RATE 2.0 INCHES PER HOUR

0650 AM HEAVY SNOW ST MARYS GLACIER 39.84N 105.65W
12/06/2007 M11.0 INCH CLEAR CREEK CO TRAINED SPOTTER

0600 AM HEAVY SNOW 5 S GEORGETOWN 39.64N 105.70W
12/06/2007 M14.0 INCH CLEAR CREEK CO AMATEUR RADIO

0550 AM SNOW 6 SW BAILEY 39.34N 105.55W
12/06/2007 M1.5 INCH PARK CO TRAINED SPOTTER

0500 AM SNOW BRECKENRIDGE 39.51N 106.05W
12/06/2007 M4.0 INCH SUMMIT CO TRAINED SPOTTER

0500 AM HEAVY SNOW 2 SW WINTER PARK 39.87N 105.81W
12/06/2007 M10.5 INCH GRAND CO TRAINED SPOTTER

0450 AM HEAVY SNOW 11 WNW DILLON 39.69N 106.23W
12/06/2007 M9.5 INCH SUMMIT CO DEPT OF HIGHWAYS

0438 AM HEAVY SNOW 5 S BRECKENRIDGE 39.44N 106.05W
12/06/2007 M8.5 INCH SUMMIT CO TRAINED SPOTTER

&&

$$

JK

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KICT [061355]: Preliminary Local Storm Report

NWUS53 KICT 061355
LSRICT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
755 AM CST THU DEC 06 2007

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

0752 AM FREEZING RAIN EUREKA 37.82N 96.29W
12/06/2007 E0.00 INCH GREENWOOD KS LAW ENFORCEMENT

A FEW ACCIDENTS ACROSS THE COUNTY DUE TO SLICK ROADS FROM
LIGHT FREEZING RAIN.

&&

$$

KED

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KICT [061352]: Preliminary Local Storm Report

NWUS53 KICT 061352
LSRICT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
752 AM CST THU DEC 06 2007

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

0750 AM FREEZING RAIN ANTHONY 37.15N 98.03W
12/06/2007 E0.00 INCH HARPER KS LAW ENFORCEMENT

SLICK ROADS ACROSS THE COUNTY DUE TO LIGHT FREEZING RAIN.
REPORTS OF SEVERAL VEHICLES SLIDING OFF ROADWAYS.

&&

$$

KED

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KLBF [061326]: Preliminary Local Storm Report

NWUS53 KLBF 061326
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
726 AM CST THU DEC 06 2007

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

0722 AM SLEET 7 S VALENTINE 42.77N 100.55W
12/06/2007 E0.00 INCH CHERRY NE PUBLIC

AN OBSERVER REPORTED 2 INCHES OF SNOW AND ONE HALF INCH
OF ICE 7 MILES SOUTH OF VALENTINE JUST WEST OF HIGHWAY
83.

&&

$$

JSWEET

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KBOU [061323]: Preliminary Local Storm Report...summary

NWUS55 KBOU 061323
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
623 AM MST THU DEC 06 2007

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

0550 AM SNOW 6 SW BAILEY 39.34N 105.55W
12/06/2007 M1.5 INCH PARK CO TRAINED SPOTTER

0500 AM SNOW BRECKENRIDGE 39.51N 106.05W
12/06/2007 M4.0 INCH SUMMIT CO TRAINED SPOTTER

0500 AM HEAVY SNOW 2 SW WINTER PARK 39.87N 105.81W
12/06/2007 M10.5 INCH GRAND CO TRAINED SPOTTER

0450 AM HEAVY SNOW 11 WNW DILLON 39.69N 106.23W
12/06/2007 M9.5 INCH SUMMIT CO DEPT OF HIGHWAYS

0438 AM HEAVY SNOW 5 S BRECKENRIDGE 39.44N 106.05W
12/06/2007 M8.5 INCH SUMMIT CO TRAINED SPOTTER

&&

$$

JK

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KBOU [061254]: Preliminary Local Storm Report

NWUS55 KBOU 061254
LSRBOU

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
554 AM MST THU DEC 06 2007

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

0550 AM SNOW 6 SW BAILEY 39.34N 105.55W
12/06/2007 M1.5 INCH PARK CO TRAINED SPOTTER

0500 AM SNOW BRECKENRIDGE 39.51N 106.05W
12/06/2007 M4.0 INCH SUMMIT CO TRAINED SPOTTER

0500 AM HEAVY SNOW 2 SW WINTER PARK 39.87N 105.81W
12/06/2007 M10.5 INCH GRAND CO TRAINED SPOTTER

0450 AM HEAVY SNOW 11 WNW DILLON 39.69N 106.23W
12/06/2007 M8.5 INCH SUMMIT CO DEPT OF HIGHWAYS

0438 AM HEAVY SNOW 5 S BRECKENRIDGE 39.44N 106.05W
12/06/2007 M8.5 INCH SUMMIT CO TRAINED SPOTTER

&&

$$

JK

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KICT [061217]: Preliminary Local Storm Report

NWUS53 KICT 061217
LSRICT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
617 AM CST THU DEC 06 2007

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

0612 AM SLEET MCPHERSON 38.37N 97.66W
12/06/2007 E0.00 INCH MCPHERSON KS LAW ENFORCEMENT

SLEET BEGINNING TO COVER THE GROUND IN NORTHERN PART OF
COUNTY. SLEET AND FREEZING RAIN IN SOUTH PART OF COUNTY
WITH THIN COATING OF ICE ON SURFACES.

&&

$$

KED

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KICT [061211]: Preliminary Local Storm Report

NWUS53 KICT 061211
LSRICT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
611 AM CST THU DEC 06 2007

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

0603 AM FREEZING RAIN MCPHERSON 38.37N 97.66W
12/06/2007 E0.00 INCH MCPHERSON KS TRAINED SPOTTER

FREEZING RAIN IN MCPHERSON HAS GLAZED UP ROADS MAKING
EVERYTHING VERY SLICK.

&&

$$

CDB

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KMPX [061202]: Preliminary Local Storm Report

NWUS53 KMPX 061202
LSRMPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
602 AM CST THU DEC 06 2007

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

0601 AM SNOW DONNELLY 45.69N 96.01W
12/06/2007 M1.0 INCH STEVENS MN CO-OP OBSERVER

&&

$$

MTF

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 061143
SWODY1
SPC AC 061140

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0540 AM CST THU DEC 06 2007

VALID 061300Z - 071200Z

..NO TSTM AREAS FORECAST...

GENERAL ZONAL FLOW PATTERN IS PRESENT TODAY OVER THE NATION WITH
FAST WEST-NORTHWEST FLOW AND SEVERAL EMBEDDED SHORTWAVE TROUGHS.
ONE STRONG TROUGH WILL APPROACH COASTAL ORE/NORTHERN CA LATER
TODAY...PROVIDING STEEP LAPSE RATES AND UVVS ACROSS THE REGION.
ISOLATED LIGHTNING STRIKES WILL BE POSSIBLE OFF THE COAST...BUT
CURRENT INDICATIONS ARE THAT LIGHTNING POTENTIAL INLAND IS LOW.

SCATTERED THUNDERSTORMS ARE ONGOING THIS MORNING SOUTH OF THE FL
KEYS. THIS ACTIVITY WILL PERSIST FOR A FEW MORE HOURS AND SAG
SOUTHWARD TOWARD CUBA. THUNDERSTORM POTENTIAL OVER FL APPEARS LOW
AT THIS TIME.

ELSEWHERE...DRY/COOL AND STABLE CONDITIONS ARE EXPECTED TO PRECLUDE
ORGANIZED THUNDERSTORM ACTIVITY TODAY.

.HART.. 12/06/2007

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MESO: Mesoscale Discussion 2184

ACUS11 KWNS 061140
SWOMCD
SPC MCD 061140 COR
MOZ000-KSZ000-IAZ000-NEZ000-SDZ000-061445-

MESOSCALE DISCUSSION 2184
NWS STORM PREDICTION CENTER NORMAN OK
0540 AM CST THU DEC 06 2007

AREAS AFFECTED...ERN NEB/FAR SWRN IA/NERN-EAST CENTRAL KS AND
ADJACENT PART OF MO

CONCERNING...WINTER MIXED PRECIPITATION

VALID 061140Z - 061445Z

CORRECTED TO CLARIFY NWD EXTENT OF FREEZING RAIN THREAT

SNOWFALL RATES UP TO 1 IN/HR ARE EXPECTED TO DEVELOP ACROSS ERN NEB
FROM HOLT TO YORK/FILLMORE COUNTIES BETWEEN 12-15Z AND INTO FAR ERN
NEB/FAR SWRN IA INCLUDING THE OMAHA METRO AREA BETWEEN 15-18Z.
FARTHER S...THERMODYNAMIC PROFILES PER FORECAST SOUNDINGS INDICATE A
WARM LAYER IN THE LOW LEVELS WILL SUPPORT A MIXTURE OF SLEET/
FREEZING RAIN ACROSS MAINLY EAST CENTRAL KS AND ADJACENT PARTS OF
WEST CENTRAL MO...GENERALLY S OF THE I-70 CORRIDOR...BY 18Z.

AT 10Z...REGIONAL RADARS INDICATED AN AREA OF PRECIPITATION MAINLY
IN THE FORM OF LIGHT SNOW ACROSS CENTRAL NEB AND A MIXTURE OF PTYPES
INTO NORTH CENTRAL NEB. WINTRY PRECIPITATION IS EXPECTED TO EXPAND
IN AREAL COVERAGE AND INCREASE IN INTENSITY ACROSS ERN NEB/NERN KS
THIS MORNING. THIS WILL OCCUR AS ASCENT WITHIN LEFT EXIT REGION OF
WLY MID/UPPER LEVEL JETS ACCOMPANYING CENTRAL ROCKIES SHORT WAVE
TROUGH DEVELOPS EWD INTO THE CENTRAL PLAINS. THIS ASCENT WILL BE
ENHANCED BY INCREASING WAA REGIME ALONG AXIS OF STRONG SSWLY LLJ
EXTENDING INTO ERN NEB BY LATE MORNING. ALTHOUGH ONGOING
PRECIPITATION BEGAN AS A MIXTURE OF WINTER PTYPES...THE EXPECTED
INCREASE OF UVVS WILL SUPPORT SUFFICIENT COOLING IN THE COLUMN FOR
THE PTYPE TO BE MAINLY SNOW ACROSS ERN NEB TO NWRN MO WHERE SNOWFALL
RATES SHOULD APPROACH 1 IN/HR BY MID-LATE MORNING. GIVEN THE
POTENTIAL FOR STRONG UVVS TO EXTEND SWD...FREEZING RAIN RATES S OF
I-70 CORRIDOR MAY REACH FROM 0.05 TO 0.1 IN/HR FOR A FEW HOURS ONCE
PRECIPITATION BEGINS AROUND 15-18Z.

.PETERS.. 12/06/2007

..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...EAX...FSD...OAX...TOP...ICT...GID...LBF...

41519553 40759525 40109524 39789494 39309461 38359450
38139500 38219598 38699728 39569786 40539782 41409809
42189852 42719872 42919833 42769696 42359641 41779612

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MESO: Mesoscale Discussion 2184

ACUS11 KWNS 061049
SWOMCD
SPC MCD 061049
MOZ000-KSZ000-IAZ000-NEZ000-SDZ000-061445-

MESOSCALE DISCUSSION 2184
NWS STORM PREDICTION CENTER NORMAN OK
0449 AM CST THU DEC 06 2007

AREAS AFFECTED...ERN NEB/FAR SWRN IA/NERN-EAST CENTRAL KS AND
ADJACENT PART OF MO

CONCERNING...WINTER MIXED PRECIPITATION

VALID 061049Z - 061445Z

SNOWFALL RATES UP TO 1 IN/HR ARE EXPECTED TO DEVELOP ACROSS ERN NEB
FROM HOLT TO YORK/FILLMORE COUNTIES BETWEEN 12-15Z AND INTO FAR ERN
NEB/FAR SWRN IA INCLUDING THE OMAHA METRO AREA BETWEEN 15-18Z.
FARTHER S...THERMODYNAMIC PROFILES PER FORECAST SOUNDINGS INDICATE A
WARM LAYER IN THE LOW LEVELS WILL SUPPORT A MIXTURE OF SLEET/
FREEZING RAIN ACROSS MAINLY NERN-EAST CENTRAL KS AND ADJACENT PARTS
OF NWRN MO BY 18Z.

AT 10Z...REGIONAL RADARS INDICATED AN AREA OF PRECIPITATION MAINLY
IN THE FORM OF LIGHT SNOW ACROSS CENTRAL NEB AND A MIXTURE OF PTYPES
INTO NORTH CENTRAL NEB. WINTRY PRECIPITATION IS EXPECTED TO EXPAND
IN AREAL COVERAGE AND INCREASE IN INTENSITY ACROSS ERN NEB/NERN KS
THIS MORNING. THIS WILL OCCUR AS ASCENT WITHIN LEFT EXIT REGION OF
WLY MID/UPPER LEVEL JETS ACCOMPANYING CENTRAL ROCKIES SHORT WAVE
TROUGH DEVELOPS EWD INTO THE CENTRAL PLAINS. THIS ASCENT WILL BE
ENHANCED BY INCREASING WAA REGIME ALONG AXIS OF STRONG SSWLY LLJ
EXTENDING INTO ERN NEB BY LATE MORNING. ALTHOUGH ONGOING
PRECIPITATION BEGAN AS A MIXTURE OF WINTER PTYPES...THE EXPECTED
INCREASE OF UVVS WILL SUPPORT SUFFICIENT COOLING IN THE COLUMN FOR
THE PTYPE TO BE MAINLY SNOW ACROSS ERN NEB WHERE SNOWFALL RATES
SHOULD APPROACH 1 IN/HR BY MID-LATE MORNING. GIVEN THE POTENTIAL
FOR STRONG UVVS TO EXTEND SWD INTO NERN KS/NWRN MO...FREEZING RAIN
RATES MAY REACH FROM 0.05 TO 0.1 IN/HR FOR A FEW HOURS ONCE
PRECIPITATION BEGINS AROUND 15-18Z.

.PETERS.. 12/06/2007

..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...EAX...FSD...OAX...TOP...ICT...GID...LBF...

41519553 40759525 40109524 39789494 39309461 38359450
38139500 38219598 38699728 39569786 40539782 41409809
42189852 42719872 42919833 42769696 42359641 41779612

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 060954
SWOD48
SPC AC 060953

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0353 AM CST THU DEC 06 2007

VALID 091200Z - 141200Z

..PREDICTABILITY IS TOO LOW TO OUTLOOK SEVERE THREAT AREA...

MODELS ARE SUGGESTIVE THAT THE PRIMARY SHORT WAVE IMPULSE...DIGGING
INTO THE AMPLIFIED SOUTHERN BRANCH TROUGH...WILL CONTRIBUTE TO THE
EVOLUTION OF CLOSED LOW IN THE BASE OF THE TROUGH...SOMEWHERE IN THE
VICINITY OF SOUTHERN CALIFORNIA/NORTHERN BAJA...BY LATE THIS COMING
WEEKEND. THEREAFTER...GUIDANCE GENERALLY SUGGESTS THIS FEATURE WILL
BE FORCED EAST NORTHEASTWARD ACROSS THE CENTRAL AND EASTERN U.S. BY
THE MIDDLE OF NEXT WEEK. HOWEVER...THE SPREAD AMONG MODEL GUIDANCE
IS LARGE. UNCERTAINTY ALSO EXISTS CONCERNING THE STRENGTH OF THE
COLD AIR SURGE TO THE LEE OF THE ROCKIES EARLY NEXT WEEK. BUT...IT
CURRENTLY SEEMS MOST PROBABLE THAT SIGNIFICANT SURFACE CYCLOGENESIS
WILL NOT OCCUR...AT LEAST TO THE IMMEDIATE LEE OF THE SOUTHERN
ROCKIES. THIS MAY LIMIT SEVERE POTENTIAL ACROSS TEXAS DURING THE
SUNDAY/MONDAY...DAY4/DAY5...TIME FRAME.

A STRONG SURFACE FRONTAL ZONE ACROSS THE OZARK PLATEAU/OHIO
VALLEY...AND TO THE LEE OF THE CENTRAL APPALACHIANS INTO THE MID
ATLANTIC COAST...COULD PROVIDE A POTENTIAL FOCUS FOR CYCLOGENESIS
NEXT TUESDAY THROUGH THURSDAY. AND...IF THIS OCCURS...A MORE
SIGNIFICANT RISK FOR SEVERE STORMS IS POSSIBLE ACROSS THE
SOUTHEASTERN QUARTER OF THE NATION. BUT...LARGE UNCERTAINTY/LOW
PROBABILITY AT THIS POINT PRECLUDES DELINEATING A SEVERE THREAT
AREA.

.KERR.. 12/06/2007

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 060820
SWODY3
SPC AC 060818

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0218 AM CST THU DEC 06 2007

VALID 081200Z - 091200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
AMPLIFICATION WITHIN THE SOUTHERN BRANCH OF SPLIT POLAR WESTERLIES
APPEARS LIKELY TO CONTINUE THROUGH THIS FORECAST PERIOD.
CONSIDERABLE SPREAD EXISTS AMONG THE MODELS CONCERNING THE DETAILS
OF THE EMBEDDED SHORT WAVE IMPULSES. BUT...GUIDANCE GENERALLY
SUGGESTS THAT THE FIRST IMPULSE EMANATING FROM THE SOUTHWESTERN
TROUGH WILL ACCELERATE NORTHEAST OF THE CENTRAL ROCKIES EARLY
SATURDAY...THROUGH THE UPPER GREAT LAKES REGION BY LATE SATURDAY
NIGHT/EARLY SUNDAY. AT THE SAME TIME...THE PRIMARY UPSTREAM IMPULSE
IS FORECAST TO DIG SOUTH/SOUTHWESTWARD THROUGH SOUTHERN
CALIFORNIA...MAINTAINING THE POSITIVE TILT ORIENTATION OF THE LARGER
SCALE TROUGH...UPSTREAM OF AN UPPER RIDGE BUILDING THROUGH THE
SOUTHEASTERN STATES.

COLD AIR...REINFORCED BY NEW INTRUSIONS ASSOCIATED WITH
PERTURBATIONS IN THE NORTHERN STREAM...IS PROGGED TO LINGER ACROSS
MUCH OF THE NORTHERN TWO THIRDS OF THE NATION EAST OF THE ROCKIES.
AND...AS LOW-LEVEL WARMING OCCURS ACROSS THE SOUTH IN RESPONSE TO
DEVELOPMENTS IN THE SOUTHERN STREAM...A FRONTAL ZONE IS FORECAST TO
STRENGTHEN ACROSS THE SOUTHERN PLAINS RED RIVER VALLEY THROUGH THE
LOWER OHIO VALLEY AND SOUTHERN MID ATLANTIC STATES. A RETURN FLOW
OFF THE WESTERN GULF OF MEXICO WILL CONTINUE. BUT...THE MOISTENING
BOUNDARY LAYER TO THE SOUTH OF THE FRONTAL ZONE APPEARS LIKELY TO
REMAIN LARGELY CAPPED. AND...THIS WILL PROBABLY MINIMIZE SEVERE
POTENTIAL THROUGH EARLY SUNDAY.

..SOUTHERN PLAINS...
AN INCREASINGLY FAVORABLE ENVIRONMENT FOR SEVERE STORMS IS EXPECTED
TO DEVELOP TO THE SOUTH OF THE SURFACE FRONT BY LATE
SATURDAY...ACROSS MUCH OF CENTRAL INTO NORTHEAST TEXAS. SHEAR
BENEATH STRONG SOUTHWESTERLY MID/UPPER FLOW IS FORECAST TO BECOME
SUFFICIENT FOR SUPERCELLS...AS SURFACE DEW POINTS CLIMB THROUGH THE
LOWER/MID 60S...CONTRIBUTING TO MIXED LAYER CAPE OF 500-1000 J/KG.
BROAD ASCENT ASSOCIATED WITH WEAK LOW-LEVEL WARM ADVECTION IS ALSO
LIKELY THROUGH THE PERIOD. BUT...MID/UPPER FORCING NECESSARY TO
WEAKEN INHIBITION IS UNCERTAIN.

THERE IS INDICATION AMONG SOME MODEL GUIDANCE THAT THE INFLECTION
BETWEEN UPSTREAM TROUGH AND DOWNSTREAM RIDGE COULD SHIFT ACROSS
NORTH CENTRAL TEXAS SATURDAY NIGHT...WITH AN INCREASINGLY
DIFLUENT/DIVERGENT UPPER FLOW DOWNSTREAM. THIS COULD BECOME
SUPPORTIVE OF INCREASING CONVECTION...INCLUDING THUNDERSTORM
ACTIVITY...MOST LIKELY ALONG A SOUTHERLY LOW-LEVEL JET AXIS
EXTENDING ACROSS CENTRAL TEXAS INTO THE OZARK PLATEAU. THE BEST
CHANCE FOR STORMS IS PROBABLY IN THE ZONE OF STEEPER LOW-LEVEL
ISENTROPIC ASCENT...TO THE NORTH/COOL SIDE OF THE SURFACE FRONT.
BUT...WITH AT LEAST SOME POTENTIAL FOR STORMS INITIATING TO THE
SOUTH OF THE FRONT...ACROSS PARTS OF CENTRAL/NORTHEAST TEXAS...AT
LEAST LOW SEVERE PROBABILITIES APPEAR TO EXIST AT THE PRESENT TIME.

.KERR.. 12/06/2007

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