KDLH [130231]: Preliminary Local Storm Report...summary

NWUS53 KDLH 130231
LSRDLH

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DULUTH MN
928 PM CDT WED MAR 12 2008

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

0600 PM SNOW 3 SW BRAINERD 46.32N 94.24W
03/12/2008 M0.5 INCH CROW WING MN TRAINED SPOTTER

0630 PM SNOW SARONA 45.71N 91.81W
03/12/2008 M1.0 INCH WASHBURN WI TRAINED SPOTTER

0715 PM SNOW EXELAND 45.67N 91.24W
03/12/2008 M1.5 INCH SAWYER WI TRAINED SPOTTER

0730 PM SNOW CROSSLAKE 46.68N 94.09W
03/12/2008 M3.0 INCH CROW WING MN TRAINED SPOTTER

0730 PM SNOW PILLAGER 46.33N 94.48W
03/12/2008 M1.3 INCH CASS MN TRAINED SPOTTER

0750 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M1.5 INCH PRICE WI TRAINED SPOTTER

0815 PM SNOW NISSWA 46.50N 94.30W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

0820 PM SNOW ISLAND LAKE 47.01N 92.19W
03/12/2008 M1.0 INCH ST. LOUIS MN TRAINED SPOTTER

0820 PM SNOW 5 N PILLAGER 46.40N 94.48W
03/12/2008 M2.0 INCH CASS MN TRAINED SPOTTER

0830 PM SNOW 3 N BRAINERD 46.40N 94.19W
03/12/2008 M2.3 INCH CROW WING MN TRAINED SPOTTER

0830 PM SNOW 4 SSW BRUNO 46.23N 92.70W
03/12/2008 M1.0 INCH PINE MN CO-OP OBSERVER

0900 PM SNOW 5 SE GRAND RAPIDS 47.18N 93.45W
03/12/2008 M1.5 INCH ITASCA MN TRAINED SPOTTER

0900 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M3.0 INCH PRICE WI TRAINED SPOTTER

0900 PM SNOW DULUTH 46.78N 92.12W
03/12/2008 M1.1 INCH ST. LOUIS MN OFFICIAL NWS OBS

0900 PM SNOW LITTLEFORK 48.40N 93.56W
03/12/2008 M0.3 INCH KOOCHICHING MN CO-OP OBSERVER

0900 PM SNOW 2 E PEQUOT LAKES 46.60N 94.28W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

&&

THE TOTALS BELOW ARE SEPARATED INTO SNOW...AND ICE AND SLEET
CATEGORIES...THEN BY AMOUNT...AND ARE NOT NECESSARILY THE
FINAL AMOUNT FOR EACH LOCATION.

SNOW REPORTS LISTED BY AMOUNT

INCHES LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
3.00 1 W PHILLIPS WI PRICE 0900 PM
3.00 CROSSLAKE MN CROW WING 0730 PM
2.30 3 N BRAINERD MN CROW WING 0830 PM
2.00 2 E PEQUOT LAKES MN CROW WING 0900 PM
2.00 5 N PILLAGER MN CASS 0820 PM
2.00 NISSWA MN CROW WING 0815 PM
1.50 5 SE GRAND RAPIDS MN ITASCA 0900 PM
1.50 1 W PHILLIPS WI PRICE 0750 PM
1.50 EXELAND WI SAWYER 0715 PM
1.30 PILLAGER MN CASS 0730 PM
1.10 DULUTH MN ST. LOUIS 0900 PM
1.00 4 SSW BRUNO MN PINE 0830 PM
1.00 ISLAND LAKE MN ST. LOUIS 0820 PM
1.00 SARONA WI WASHBURN 0630 PM
0.50 3 SW BRAINERD MN CROW WING 0600 PM
0.30 LITTLEFORK MN KOOCHICHING 0900 PM

$$

SGOHDE

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KDLH [130230]: Preliminary Local Storm Report...summary

NWUS53 KDLH 130230
LSRDLH

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DULUTH MN
928 PM CDT WED MAR 12 2008

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

0600 PM SNOW 3 SW BRAINERD 46.32N 94.24W
03/12/2008 M0.5 INCH CROW WING MN TRAINED SPOTTER

0630 PM SNOW SARONA 45.71N 91.81W
03/12/2008 M1.0 INCH WASHBURN WI TRAINED SPOTTER

0715 PM SNOW EXELAND 45.67N 91.24W
03/12/2008 M1.5 INCH SAWYER WI TRAINED SPOTTER

0730 PM SNOW CROSSLAKE 46.68N 94.09W
03/12/2008 M3.0 INCH CROW WING MN TRAINED SPOTTER

0730 PM SNOW PILLAGER 46.33N 94.48W
03/12/2008 M1.3 INCH CASS MN TRAINED SPOTTER

0750 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M1.5 INCH PRICE WI TRAINED SPOTTER

0815 PM SNOW NISSWA 46.50N 94.30W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

0820 PM SNOW ISLAND LAKE 47.01N 92.19W
03/12/2008 M1.0 INCH ST. LOUIS MN TRAINED SPOTTER

0820 PM SNOW 5 N PILLAGER 46.40N 94.48W
03/12/2008 M2.0 INCH CASS MN TRAINED SPOTTER

0830 PM SNOW 3 N BRAINERD 46.40N 94.19W
03/12/2008 M2.3 INCH CROW WING MN TRAINED SPOTTER

0830 PM SNOW 4 SSW BRUNO 46.23N 92.70W
03/12/2008 M1.0 INCH PINE MN CO-OP OBSERVER

0900 PM SNOW 5 SE GRAND RAPIDS 47.18N 93.45W
03/12/2008 M1.5 INCH ITASCA MN TRAINED SPOTTER

0900 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M3.0 INCH PRICE WI TRAINED SPOTTER

0900 PM SNOW DULUTH 46.78N 92.12W
03/12/2008 M1.1 INCH ST. LOUIS MN OFFICIAL NWS OBS

0900 PM SNOW LITTLEFORK 48.40N 93.56W
03/12/2008 M0.3 INCH KOOCHICHING MN CO-OP OBSERVER

0900 PM SNOW 2 E PEQUOT LAKES 46.60N 94.28W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

&&

$$

SGOHDE

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KDLH [130218]: Preliminary Local Storm Report

NWUS53 KDLH 130218
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
917 PM CDT WED MAR 12 2008

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

0830 PM SNOW 4 SSW BRUNO 46.23N 92.70W
03/12/2008 M1.0 INCH PINE MN CO-OP OBSERVER

0830 PM SNOW 3 N BRAINERD 46.40N 94.19W
03/12/2008 M2.3 INCH CROW WING MN TRAINED SPOTTER

0900 PM SNOW 2 E PEQUOT LAKES 46.60N 94.28W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

0900 PM SNOW LITTLEFORK 48.40N 93.56W
03/12/2008 M0.3 INCH KOOCHICHING MN CO-OP OBSERVER

0900 PM SNOW DULUTH 46.78N 92.12W
03/12/2008 M1.1 INCH ST. LOUIS MN OFFICIAL NWS OBS

0900 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M3.0 INCH PRICE WI TRAINED SPOTTER

0900 PM SNOW 5 SE GRAND RAPIDS 47.18N 93.45W
03/12/2008 M1.5 INCH ITASCA MN TRAINED SPOTTER

&&

$$

SGOHDE

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KGRB [130159]: Preliminary Local Storm Report

NWUS53 KGRB 130159
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
859 PM CDT WED MAR 12 2008

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

0845 PM SNOW RHINELANDER 45.63N 89.41W
03/12/2008 M1.5 INCH ONEIDA WI BROADCAST MEDIA

MODERATE SNOW STILL FALLING

&&

$$

EB

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KGRB [130152]: Preliminary Local Storm Report

NWUS53 KGRB 130152
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
852 PM CDT WED MAR 12 2008

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

0851 PM SNOW GREEN BAY 44.51N 88.00W
03/12/2008 M0.7 INCH BROWN WI OFFICIAL NWS OBS

&&

$$

SANDERS

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KDLH [130134]: Preliminary Local Storm Report...summary

NWUS53 KDLH 130134
LSRDLH

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DULUTH MN
834 PM CDT WED MAR 12 2008

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

0600 PM SNOW 3 SW BRAINERD 46.32N 94.24W
03/12/2008 M0.5 INCH CROW WING MN TRAINED SPOTTER

0630 PM SNOW SARONA 45.71N 91.81W
03/12/2008 M1.0 INCH WASHBURN WI TRAINED SPOTTER

0715 PM SNOW EXELAND 45.67N 91.24W
03/12/2008 M1.5 INCH SAWYER WI TRAINED SPOTTER

0730 PM SNOW PILLAGER 46.33N 94.48W
03/12/2008 M1.3 INCH CASS MN TRAINED SPOTTER

0730 PM SNOW CROSSLAKE 46.68N 94.09W
03/12/2008 M3.0 INCH CROW WING MN TRAINED SPOTTER

0750 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M1.5 INCH PRICE WI TRAINED SPOTTER

0800 PM SNOW DULUTH 46.78N 92.12W
03/12/2008 M0.5 INCH ST. LOUIS MN OFFICIAL NWS OBS

0815 PM SNOW NISSWA 46.50N 94.30W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

0820 PM SNOW 5 N PILLAGER 46.40N 94.48W
03/12/2008 M2.0 INCH CASS MN TRAINED SPOTTER

0820 PM SNOW ISLAND LAKE 47.01N 92.19W
03/12/2008 M1.0 INCH ST. LOUIS MN TRAINED SPOTTER

&&

THE TOTALS BELOW ARE SEPARATED INTO SNOW...AND ICE AND SLEET
CATEGORIES...THEN BY AMOUNT...AND ARE NOT NECESSARILY THE
FINAL AMOUNT FOR EACH LOCATION.

SNOW REPORTS LISTED BY AMOUNT

INCHES LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
3.00 CROSSLAKE MN CROW WING 0730 PM
2.00 5 N PILLAGER MN CASS 0820 PM
2.00 NISSWA MN CROW WING 0815 PM
1.50 1 W PHILLIPS WI PRICE 0750 PM
1.50 EXELAND WI SAWYER 0715 PM
1.30 PILLAGER MN CASS 0730 PM
1.00 ISLAND LAKE MN ST. LOUIS 0820 PM
1.00 SARONA WI WASHBURN 0630 PM
0.50 DULUTH MN ST. LOUIS 0800 PM
0.50 3 SW BRAINERD MN CROW WING 0600 PM

$$

SGOHDE

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KDLH [130134]: Preliminary Local Storm Report...summary

NWUS53 KDLH 130134
LSRDLH

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DULUTH MN
834 PM CDT WED MAR 12 2008

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

0600 PM SNOW 3 SW BRAINERD 46.32N 94.24W
03/12/2008 M0.5 INCH CROW WING MN TRAINED SPOTTER

0630 PM SNOW SARONA 45.71N 91.81W
03/12/2008 M1.0 INCH WASHBURN WI TRAINED SPOTTER

0715 PM SNOW EXELAND 45.67N 91.24W
03/12/2008 M1.5 INCH SAWYER WI TRAINED SPOTTER

0730 PM SNOW PILLAGER 46.33N 94.48W
03/12/2008 M1.3 INCH CASS MN TRAINED SPOTTER

0730 PM SNOW CROSSLAKE 46.68N 94.09W
03/12/2008 M3.0 INCH CROW WING MN TRAINED SPOTTER

0750 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M1.5 INCH PRICE WI TRAINED SPOTTER

0800 PM SNOW DULUTH 46.78N 92.12W
03/12/2008 M0.5 INCH ST. LOUIS MN OFFICIAL NWS OBS

0815 PM SNOW NISSWA 46.50N 94.30W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

0820 PM SNOW 5 N PILLAGER 46.40N 94.48W
03/12/2008 M2.0 INCH CASS MN TRAINED SPOTTER

0820 PM SNOW ISLAND LAKE 47.01N 92.19W
03/12/2008 M1.0 INCH ST. LOUIS MN TRAINED SPOTTER

&&

$$

SGOHDE

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KDLH [130133]: Preliminary Local Storm Report

NWUS53 KDLH 130133
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
833 PM CDT WED MAR 12 2008

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

0820 PM SNOW 5 N PILLAGER 46.40N 94.48W
03/12/2008 M2.0 INCH CASS MN TRAINED SPOTTER

0820 PM SNOW ISLAND LAKE 47.01N 92.19W
03/12/2008 M1.0 INCH ST. LOUIS MN TRAINED SPOTTER

&&

$$

SGOHDE

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KGRB [130125]: Preliminary Local Storm Report

NWUS53 KGRB 130125
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
824 PM CDT WED MAR 12 2008

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

0824 PM SNOW TOMAHAWK 45.46N 89.73W
03/12/2008 M1.5 INCH LINCOLN WI CO-OP OBSERVER

&&

$$

EB/RS

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KDLH [130123]: Preliminary Local Storm Report

NWUS53 KDLH 130123
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
822 PM CDT WED MAR 12 2008

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

0815 PM SNOW NISSWA 46.50N 94.30W
03/12/2008 M2.0 INCH CROW WING MN TRAINED SPOTTER

&&

$$

SGOHDE

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KGRB [130110]: Preliminary Local Storm Report

NWUS53 KGRB 130110
LSRGRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
809 PM CDT WED MAR 12 2008

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

0745 PM SNOW EDGAR 44.91N 89.96W
03/12/2008 M0.3 INCH MARATHON WI OFFICIAL NWS OBS

0800 PM SNOW 3 N ATHENS 45.07N 90.08W
03/12/2008 M1.3 INCH MARATHON WI OFFICIAL NWS OBS

0807 PM SNOW WAUSAU 44.96N 89.63W
03/12/2008 M1.7 INCH MARATHON WI BROADCAST MEDIA

&&

$$

EB/RS

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KDLH [130100]: Preliminary Local Storm Report

NWUS53 KDLH 130100
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
800 PM CDT WED MAR 12 2008

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

0730 PM SNOW CROSSLAKE 46.68N 94.09W
03/12/2008 M3.0 INCH CROW WING MN TRAINED SPOTTER

0750 PM SNOW 1 W PHILLIPS 45.70N 90.42W
03/12/2008 M1.5 INCH PRICE WI TRAINED SPOTTER

0800 PM SNOW DULUTH 46.78N 92.12W
03/12/2008 M0.5 INCH ST. LOUIS MN OFFICIAL NWS OBS

&&

$$

SGOHDE

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 130055
SWODY1
SPC AC 130052

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0752 PM CDT WED MAR 12 2008

VALID 130100Z - 131200Z

..NO SVR TSTM AREAS FORECAST...

..GREAT LAKES AREA...

ASCENT AND STEEP MID LEVEL LAPSE RATES ACCOMPANYING VORT MAX OVER
THE UPPER MS VALLEY WILL SPREAD EWD THROUGH THE GREAT LAKES REGION
THIS EVENING AND TONIGHT. SHALLOW...ELEVATED...NON PRECIPITATING
CONVECTION IS CURRENTLY DEVELOPING OVER SRN AND CNTRL WI WITHIN ZONE
OF ASCENT DOWNSTREAM FROM THE VORT MAX. SOME OF THE CONVECTION MIGHT
BECOME CAPABLE OF PRODUCING A FEW LIGHTNING STRIKES OVERNIGHT.
HOWEVER...ANY LIGHTNING ACTIVITY WILL LIKELY REMAIN ISOLATED AND
SPORADIC DUE TO LIMITED INSTABILITY.

.DIAL.. 03/13/2008

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KDLH [130037]: Preliminary Local Storm Report

NWUS53 KDLH 130037
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
737 PM CDT WED MAR 12 2008

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

0730 PM SNOW PILLAGER 46.33N 94.48W
03/12/2008 M1.3 INCH CASS MN TRAINED SPOTTER

&&

$$

SGOHDE

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KDLH [130028]: Preliminary Local Storm Report

NWUS53 KDLH 130028
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
728 PM CDT WED MAR 12 2008

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

0715 PM SNOW EXELAND 45.67N 91.24W
03/12/2008 M1.5 INCH SAWYER WI TRAINED SPOTTER

&&

$$

SGOHDE

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KDLH [122352]: Preliminary Local Storm Report

NWUS53 KDLH 122352
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
651 PM CDT WED MAR 12 2008

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

0630 PM SNOW SARONA 45.71N 91.81W
03/12/2008 M1.0 INCH WASHBURN WI TRAINED SPOTTER

0600 PM SNOW 3 SW BRAINERD 46.32N 94.24W
03/12/2008 M0.5 INCH CROW WING MN TRAINED SPOTTER

&&

$$

SGOHDE

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KCYS [122253]: Preliminary Local Storm Report

NWUS55 KCYS 122253
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
453 PM MDT WED MAR 12 2008

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

1255 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
03/12/2008 M57 MPH CARBON WY DEPT OF HIGHWAYS

1255 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
03/12/2008 M58 MPH CARBON WY DEPT OF HIGHWAYS

1245 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
03/12/2008 M58 MPH CARBON WY DEPT OF HIGHWAYS

1245 PM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
03/12/2008 M58 MPH CARBON WY DEPT OF HIGHWAYS

1244 PM NON-TSTM WND GST 11 SSE GARRETT 41.97N 105.52W
03/12/2008 M59 MPH ALBANY WY MESONET

1244 PM NON-TSTM WND GST VEDAUWOO 41.15N 105.40W
03/12/2008 M60 MPH ALBANY WY DEPT OF HIGHWAYS

1232 PM NON-TSTM WND GST VEDAUWOO 41.15N 105.40W
03/12/2008 M62 MPH ALBANY WY DEPT OF HIGHWAYS

1237 PM NON-TSTM WND GST VEDAUWOO 41.15N 105.40W
03/12/2008 M58 MPH ALBANY WY DEPT OF HIGHWAYS

1205 PM NON-TSTM WND GST BORDEAUX 41.95N 104.95W
03/12/2008 M57 MPH PLATTE WY DEPT OF HIGHWAYS

1235 PM NON-TSTM WND GST BORDEAUX 41.95N 104.95W
03/12/2008 M60 MPH PLATTE WY DEPT OF HIGHWAYS

1235 PM NON-TSTM WND GST BORDEAUX 41.95N 104.95W
03/12/2008 M63 MPH PLATTE WY DEPT OF HIGHWAYS

&&

$$

DDEAL

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 121958
SWODY1
SPC AC 121955

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0255 PM CDT WED MAR 12 2008

VALID 122000Z - 131200Z

..NO SVR TSTM AREAS FORECAST...

..GRTLKS...
COMPACT MID-LVL WAVE OVER THE MID-MO VLY WILL PROGRESS EWD TO NRN
IL/IND/LWR MI TONIGHT. VIGOROUS ASCENT/DIFFERENTIAL CYCLONIC
VORTICITY ADVECTION WILL CONTRIBUTE TO DEEP LAYER SATURATION TONIGHT
DOWNSTREAM INTO THE GRTLKS REGION ALONG THE NRN PERIPHERY OF A STEEP
MID-LVL LAPSE RATE PLUME. THUS...CONVECTION WILL INCREASE THIS
EVENING WITH SPORADIC LIGHTNING PSBL OVERNIGHT...PRIMARILY ALONG THE
PATH OF THE MID-LVL WAVE.

..SE FL CST...
ECOAST SEABREEZE REMAINS WEAK AT BEST FROM THE CAPE SWD...WITH
STRONGEST PORTION N OF PALM BEACH WHERE DEEP LAYER WLY FLOW WAS
WEAKEST. ISOLD SHOWERS HAVE MADE AN ATTEMPT TO FORM EAST OF MIAMI
BEACH...BUT SUSTAINED WLY FLOW AND DRY ADVECTION THROUGH ALL LAYERS
HAVE LIKELY BEEN DETRIMENTAL TO MAINTAINING UPDRAFTS. THIS WILL
LIKELY BE THE CASE THE REMAINDER OF THE AFTN AND GENERAL TSTM
PROBABILITIES HAVE BEEN REMOVED.

.RACY.. 03/12/2008

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 121627
SWODY1
SPC AC 121624

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1124 AM CDT WED MAR 12 2008

VALID 121630Z - 131200Z

..NO SVR TSTM AREAS FORECAST...

..GREAT LAKES AREA TONIGHT...
A NRN STREAM SHORTWAVE TROUGH NOW OVER THE NRN PLAINS...WITH A
PRONOUNCED EMBEDDED SPEED MAXIMUM OVER NEB...WILL PROGRESS EWD TO
THE NRN IL/INDIANA/LOWER MI AREA TONIGHT. LOW-LEVEL MOISTURE IS
QUITE LIMITED UPSTREAM FROM THIS AREA THIS MORNING...SO SUSTAINED
ASCENT WITH WAA AND DPVA WILL BE NEEDED TO SATURATE THE COLUMN ON
THE NRN FRINGE OF A MID LEVEL LAPSE RATE PLUME EMANATING FROM THE
CENTRAL PLAINS. THE NET RESULT SHOULD BE SUFFICIENT MOISTENING AND
MID LEVEL INSTABILITY FOR ISOLATED ELEVATED THUNDERSTORMS TONIGHT
ALONG THE PATH OF THE MID LEVEL WAVE.

..SE FL COAST THIS AFTERNOON...
A WEAKENING COLD FRONT IS SAGGING SWD INTO CENTRAL FL IN ADVANCE OF
A MID LEVEL TROUGH MOVING EWD OVER N/NE GULF OF MEXICO. WEAK WLY
LOW-LEVEL FLOW AND VERY DRY AIR IN THE MID LEVELS SUGGEST THAT
THUNDERSTORM DEVELOPMENT IS UNLIKELY OVER MOST OF THE CENTRAL/SRN
PART OF PENINSULA THIS AFTERNOON. A POSSIBLE EXCEPTION WILL BE
ALONG THE IMMEDIATE SE COAST WHERE LOW-LEVEL CONVERGENCE WILL BE
AIDED BY LOCAL SEA BREEZE CIRCULATIONS THIS AFTERNOON...IN THE
PRESENCE OF MODEST INSTABILITY.

.THOMPSON/JEWELL.. 03/12/2008

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 121231
SWODY1
SPC AC 121230

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0730 AM CDT WED MAR 12 2008

VALID 121300Z - 131200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
PROGRESSIVE SPLIT FLOW REGIME WILL PERSIST THROUGH THE DAY ONE
PERIOD. SEVERAL SHORT WAVE TROUGHS WILL BE EMBEDDED WITHIN THIS
LARGER-SCALE PATTERN THOUGH THE PRIMARY FEATURES OF INTEREST WILL
BE: 1) IMPULSE TRANSLATING FROM THE NRN PLAINS EWD ACROSS THE GREAT
LAKES AND 2) SRN BRANCH SYSTEM WHICH WILL MOVE FROM THE CNTRL GULF
COAST ESEWD ACROSS THE FL PENINSULA.

IN THE LOW LEVELS...WEAK CYCLONE DEVELOPMENT IS FORECAST TO OCCUR IN
ASSOCIATION WITH THE FORMER SYSTEM MENTIONED ABOVE WITH THIS FEATURE
DEVELOPING GENERALLY EWD FROM THE MID MO VALLEY INTO THE UPPER
MIDWEST. A WARM FRONT ATTENDANT TO THIS LOW WILL LIFT NEWD THROUGH
THE MID MS AND LOWER OH VALLEYS THROUGH THE FORECAST PERIOD.
MEANWHILE...TRAILING COLD FRONT WILL PUSH SWD THROUGH THE CNTRL INTO
SRN PLAINS.

..OH VALLEY/UPPER GREAT LAKES...
LOW-LEVEL MOISTURE WILL REMAIN QUITE LIMITED AHEAD OF SURFACE LOW
AND COLD FRONT. HOWEVER...A PLUME OF STEEP MIDLEVEL LAPSE RATES
WILL BE COINCIDENT WITH UPPER SYSTEM...CONTRIBUTING TO POCKETS OF
WEAK CONVECTIVE INSTABILITY WITH MUCAPES 200-400 J/KG. ELEVATED
TSTMS WILL BECOME INCREASINGLY LIKELY TONIGHT N OF WARM FRONT ALONG
NOSE OF STRENGTHENING LLJ WHERE FORCING FOR ASCENT VIA WAA ACTS ON
DESTABILIZING ENVIRONMENT.

..SERN FL PENINSULA...
WLY LOW-LEVEL FLOW WILL EXIST TODAY AHEAD OF WEAK FRONTAL BOUNDARY
SAGGING SWD THROUGH THE PENINSULA. THIS SHOULD SERVE TO ENHANCE
CONVERGENCE ALONG SEA-BREEZE BOUNDARY AS IT PUSHES ALONG/OFF THE
SERN FL COAST THIS AFTERNOON. AIR MASS IS EXPECTED TO REMAIN MOIST
/DEWPOINTS IN THE LOWER TO MID 60S/ AND AT LEAST WEAKLY UNSTABLE
WITH MLCAPES AROUND 500 J/KG. FORCING FOR ASCENT ASSOCIATED WITH
APPROACHING MIDLEVEL TROUGH COUPLED WITH THE INCREASING CONVERGENCE
IN THE LOW LEVELS SHOULD BE SUFFICIENT TO INITIATE SHOWERS AND
ISOLATED TSTMS ALONG THE IMMEDIATE COAST THIS AFTERNOON INTO
EVENING.

.MEAD/EVANS.. 03/12/2008

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 121229
SWODY1
SPC AC 121226

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0726 AM CDT WED MAR 12 2008

VALID 121300Z - 131200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
PROGRESSIVE SPLIT FLOW REGIME WILL PERSIST THROUGH THE DAY ONE
PERIOD. SEVERAL SHORT WAVE TROUGHS WILL BE EMBEDDED WITHIN THIS
LARGER-SCALE PATTERN THOUGH THE PRIMARY FEATURES OF INTEREST WILL
BE: 1) IMPULSE TRANSLATING FROM THE NRN PLAINS EWD ACROSS THE GREAT
LAKES AND 2) SRN BRANCH SYSTEM WHICH WILL MOVE FROM THE CNTRL GULF
COAST ESEWD ACROSS THE FL PENINSULA.

IN THE LOW LEVELS...WEAK CYCLONE DEVELOPMENT IS FORECAST TO OCCUR IN
ASSOCIATION WITH THE FORMER SYSTEM MENTIONED ABOVE WITH THIS FEATURE
DEVELOPING GENERALLY EWD FROM THE MID MO VALLEY INTO THE UPPER
MIDWEST. A WARM FRONT ATTENDANT TO THIS LOW WILL LIFT NEWD THROUGH
THE MID MS AND LOWER OH VALLEYS THROUGH THE FORECAST PERIOD.
MEANWHILE...TRAILING COLD FRONT WILL PUSH SWD THROUGH THE CNTRL INTO
SRN PLAINS.

..OH VALLEY/UPPER GREAT LAKES...
LOW-LEVEL MOISTURE WILL REMAIN QUITE LIMITED AHEAD OF SURFACE LOW
AND COLD FRONT. HOWEVER...A PLUME OF STEEP MIDLEVEL LAPSE RATES
WILL BE COINCIDENT WITH UPPER SYSTEM...CONTRIBUTING TO POCKETS OF
WEAK CONVECTIVE INSTABILITY WITH MUCAPES 200-400 J/KG. ELEVATED
TSTMS WILL BECOME INCREASINGLY LIKELY TONIGHT N OF WARM FRONT ALONG
NOSE OF STRENGTHENING LLJ WHERE FORCING FOR ASCENT VIA WAA ACTS ON
DESTABILIZING ENVIRONMENT.

..SERN FL PENINSULA...
WLY LOW-LEVEL FLOW WILL EXIST TODAY AHEAD OF WEAK FRONTAL BOUNDARY
SAGGING SWD THROUGH THE PENINSULA. THIS SHOULD SERVE TO ENHANCE
CONVERGENCE ALONG SEA-BREEZE BOUNDARY AS IT PUSHES ALONG/OFF THE
SERN FL COAST THIS AFTERNOON. AIR MASS IS EXPECTED TO REMAIN MOIST
/DEWPOINTS IN THE LOWER TO MID 60S/ AND AT LEAST WEAKLY UNSTABLE
WITH MLCAPES AROUND 500 J/KG. FORCING FOR ASCENT ASSOCIATED WITH
APPROACHING MIDLEVEL TROUGH COUPLED WITH THE INCREASING CONVERGENCE
IN THE LOW LEVELS SHOULD BE SUFFICIENT TO INITIATE SHOWERS AND
ISOLATED TSTMS ALONG THE IMMEDIATE COAST THIS AFTERNOON INTO
EVENING.

.MEAD/EVANS.. 03/12/2008

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 120842
SWOD48
SPC AC 120841

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0341 AM CDT WED MAR 12 2008

VALID 151200Z - 201200Z

..DISCUSSION...

ECMWF AND GFS ARE IN REASONABLE AGREEMENT WITH MID LEVEL SPEED MAX
EJECTING EWD ACROSS THE NRN GULF STATES AND OFF THE CAROLINA COAST
EARLY SUNDAY MORNING. DEEP SW-WLY FLOW SHOULD ALLOW FOR BOUNDARY
LAYER RECOVERY AND STEEPER LAPSE RATES TO SPREAD ACROSS
CONVECTIVE-FREE ZONE OF TX/LOWER MS VALLEY INTO THE ERN GULF
STATES/CAROLINAS...ENHANCING INSTABILITY WITHIN STRONGLY SHEARED
ENVIRONMENT. ORGANIZED SEVERE THUNDERSTORMS SHOULD SPREAD FROM WEST
TO EAST BEFORE ENDING WITH FRONTAL PASSAGE EARLY SUNDAY MORNING.

BEYOND DAY4 TOO MUCH UNCERTAINTY EXISTS WITH EVOLUTION OF WRN U.S.
TROUGH FOR A SEVERE OUTLOOK.

.DARROW.. 03/12/2008

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 120730
SWODY3
SPC AC 120728

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0228 AM CDT WED MAR 12 2008

VALID 141200Z - 151200Z

..THERE IS A SLGT RISK OF SVR TSTMS FROM ERN OK...EWD ACROSS AR
INTO TN...SWD ACROSS THE CNTRL GULF STATES...

..ERN SRN PLAINS/LOWER MS VALLEY/GULF STATES...

STRENGTHENING WLY MID-HIGH LEVEL FLOW ACROSS THE SRN THIRD OF THE
CONUS WILL GREATLY ENHANCE THE SEVERE POTENTIAL OVER PARTS OF THE
SRN U.S. AS MODIFIED GULF AIRMASS RETURNS NWD BENEATH VERY STRONG
VERTICAL SHEAR. LATEST GFS/ECMWF ARE IN FAIRLY GOOD AGREEMENT WITH
TIMING/PLACEMENT OF SFC CYCLOGENESIS FRIDAY ALONG THE RED RIVER OF
SWRN OK WITH A WELL DEFINED WARM FRONT EXPECTED TO EXTEND EWD
ALONG/NORTH SIDE OF THE RED RIVER INTO THE NRN GULF STATES. THIS
FRONTAL BOUNDARY WILL SERVE AS THE PRIMARY ZONE OF EXPECTED SEVERE
THUNDERSTORM DEVELOPMENT DURING THE PERIOD AS VERY STRONG SPEED MAX
RACES EWD ACROSS THE SRN PLAINS INTO AR BY THE END OF THE PERIOD.
FOR THIS FORECAST CYCLE THE NAM HAS BEEN EXCLUDED DUE TO OVER
DEEPENING OF THE SFC LOW INTO SWRN MO WITH A DECIDEDLY NWD BIAS FROM
THE OTHER GUIDANCE.

LATEST THINKING IS DAY2 SHORTWAVE TROUGH WILL DRAW MOISTURE NWD
ACROSS ERN TX/LOWER MS VALLEY PRIOR TO DAY3 UPPER SPEED MAX.
MOISTURE SHOULD THEN WORK ITS WAY SLOWLY WWD NORTH OF WARM FRONT
INTO ERN OK. DEEP WLY FLOW WILL LIKELY RESULT IN A MUCH STRONGER
EML THAN OTHERWISE WOULD BE OBSERVED AND THUS CONVECTIVE INHIBITION
SHOULD IMPEDE THUNDERSTORM DEVELOPMENT ACROSS MUCH OF TX SOUTH OF
THE WARM FRONT. HOWEVER...ALONG/NORTH OF THE WARM FRONT
THUNDERSTORMS SHOULD BEGIN TO DEVELOP ACROSS OK BY LATE AFTERNOON.
THIS ACTIVITY SHOULD THEN SPREAD EWD INTO AN AIRMASS THAT WILL BE
STRONGLY SHEARED AND MUCH MORE UNSTABLE...ESPECIALLY ACROSS AR INTO
NRN MS/WRN TN. FORECAST SOUNDINGS ARE QUITE IMPRESSIVE ACROSS THIS
REGION WITH STRONG SIGNALS FOR SUPERCELL STRUCTURES AND LIKELY
TORNADOES.

ALTHOUGH THE GREATEST AXIS OF SEVERE SHOULD OCCUR ACROSS THE
AFOREMENTIONED STATES...THERE APPEARS TO BE SOME THREAT FOR ISOLATED
SUPERCELLS WELL AHEAD OF THE MAIN SPEED MAX FARTHER SE ACROSS
PORTIONS OF THE CNTRL GULF COAST. THIS ACTIVITY WILL NOT BE
STRONGLY FORCED...BUT SHOULD EVOLVE ALONG ERN EDGE OF CAP WITHIN
MOISTENING BOUNDARY LAYER WHERE MORE THAN ADEQUATE SHEAR FOR
SUSTAINING ORGANIZED ROTATING UPDRAFTS WILL EXIST. THIS ACTIVITY
SHOULD BE AIDED BY DAYTIME HEATING WHERE SFC DEW POINTS WILL BE WELL
INTO THE UPPER 60S. ISOLATED TORNADOES CAN ALSO BE EXPECTED WITH
THIS ACTIVITY.

.DARROW.. 03/12/2008

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 120527
SWODY2
SPC AC 120526

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1226 AM CDT WED MAR 12 2008

VALID 131200Z - 141200Z

..THERE IS A SLGT RISK OF SVR TSTMS ACROSS SERN OK...NERN
TX...WRN/CNTRL AR...

..OK/TX/AR/LA...

STRENGTHENING BELT OF WLYS WILL DEVELOP ACROSS THE SRN U.S. OVER THE
NEXT FEW DAYS AS LATEST SHORT RANGE MODELS ARE IN FAIRLY GOOD
AGREEMENT IN THIS REGARD. PROBLEMS DO ARISE HOWEVER IN THAT
INDIVIDUAL SHORTWAVE TROUGHS WILL BECOME INCREASINGLY DIFFICULT TO
PREDICT BEYOND THE DAY1-2 PERIOD AND TIMING OF THESE FEATURES WILL
PROVE NECESSARY FOR CONFIDENCE IN PLACEMENT OF SEVERE OUTLOOK.

HAVING SAID THAT...IT APPEARS ONE SUCH SHORTWAVE WILL MOVE ACROSS
OK/TX EARLY IN THE DAY2 PERIOD BEFORE EJECTING ENEWD INTO THE TN
VALLEY DURING THE LATTER HALF OF THE PERIOD. DEEP WLY FLOW OFF THE
HIGHER TERRAIN OF THE SRN ROCKIES WILL UNDOUBTEDLY SPREAD A PLUME OF
STEEP LAPSE RATES EWD...DISPLACED MORE THAN OTHERWISE WOULD BE
NOTED...INTO THE TN VALLEY IN CONJUNCTION WITH LEAD SHORTWAVE.
ADDITIONALLY...LLJ WILL STRENGTHEN AND VEER SWLY AS IT SHIFTS INTO
THE LOWER MS/TN VALLEY BY LATE AFTERNOON. ONE NEGATIVE FOR
ORGANIZED SEVERE THUNDERSTORMS IS BOUNDARY LAYER MOISTURE WILL BE
SLOW TO RETURN AHEAD OF THIS FEATURE BUT RATHER SURGE NWD ACROSS ERN
TX INTO SERN OK IN THE WAKE OF THE TROUGH. IT APPEARS SFC WIND
SHIFT WILL SAG SEWD TO A POSITION FROM NRN AR...SWWD INTO SCNTRL
OK...THEN STALL BEFORE RETREATING DURING THE DAY3 PERIOD. THIS
BOUNDARY WILL BE THE PRIMARY FOCUS FOR POTENTIAL SEVERE THUNDERSTORM
DEVELOPMENT...ESPECIALLY IN THE ABSENCE OF SIGNIFICANT LARGE SCALE
ASCENT. FORECAST SOUNDINGS ACROSS THIS REGION SUGGEST STEEP LAPSE
RATES AND SUBSTANTIAL INHIBITION WILL CAP THUNDERSTORM ACTIVITY WEST
OF I35...HOWEVER SCT THUNDERSTORMS COULD DEVELOP PRIMARILY AFTER 00Z
ACROSS THE SLIGHT RISK AREA ALONG FRONTAL ZONE. LARGE HAIL WILL BE
THE GREATEST RISK WITH THIS ACTIVITY.

..ELSEWHERE...

ISOLATED THUNDERSTORMS WILL DEVELOP ACROSS THE INTERIOR WEST FROM
WRN CO...NWWD TO THE WA/ORE/NRN CA COAST AS STRONG JET SAGS SOUTH OF
THE GREAT BASIN. STEEP LAPSE RATES WILL BE THE MAIN CONTRIBUTING
FACTOR IN DESTABILIZATION ACROSS THIS REGION. MOST ACTIVITY WILL BE
SHORT-LIVED AND STRONGLY DIURNAL DUE TO MARGINAL MOISTURE SUPPLY.

.DARROW.. 03/12/2008

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 120524
SWODY1
SPC AC 120521

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1221 AM CDT WED MAR 12 2008

VALID 121200Z - 131200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...

PROGRESSIVE SPLIT FLOW REGIME WILL PERSIST THROUGH THE DAY ONE
PERIOD. SEVERAL SHORT WAVE TROUGHS WILL BE EMBEDDED WITHIN THIS
LARGER-SCALE PATTERN THOUGH THE PRIMARY FEATURES OF INTEREST WILL
BE: 1) IMPULSE TRANSLATING FROM THE NRN PLAINS EWD ACROSS THE GREAT
LAKES AND 2) SRN BRANCH SYSTEM WHICH WILL MOVE FROM THE CNTRL GULF
COAST ESEWD ACROSS THE FL PENINSULA.

IN THE LOW LEVELS...WEAK CYCLONE DEVELOPMENT IS FORECAST TO OCCUR IN
ASSOCIATION WITH THE FORMER SYSTEM MENTIONED ABOVE WITH THIS FEATURE
DEVELOPING GENERALLY EWD FROM THE MID MO VALLEY INTO THE UPPER
MIDWEST. A WARM FRONT ATTENDANT TO THIS LOW WILL LIFT NEWD THROUGH
THE MID MS AND LOWER OH VALLEYS THROUGH THE FORECAST PERIOD.
MEANWHILE...TRAILING COLD FRONT WILL PUSH SWD THROUGH THE CNTRL INTO
SRN PLAINS.

..OH VALLEY/UPPER GREAT LAKES...

LOW-LEVEL MOISTURE WILL REMAIN QUITE LIMITED AHEAD OF SURFACE LOW
AND COLD FRONT. HOWEVER...A PLUME OF STEEP MIDLEVEL LAPSE RATES
WILL BE COINCIDENT WITH UPPER SYSTEM...CONTRIBUTING TO POCKETS OF
WEAK CONVECTIVE INSTABILITY WITH MUCAPES 200-400 J/KG. ELEVATED
TSTMS WILL BECOME INCREASINGLY LIKELY TONIGHT N OF WARM FRONT ALONG
NOSE OF STRENGTHENING LLJ WHERE FORCING FOR ASCENT VIA WAA ACTS ON
DESTABILIZING ENVIRONMENT.

..SERN FL PENINSULA...

WLY LOW-LEVEL FLOW WILL EXIST TODAY AHEAD OF WEAK FRONTAL BOUNDARY
SAGGING SWD THROUGH THE PENINSULA. THIS SHOULD SERVE TO ENHANCE
CONVERGENCE ALONG SEA-BREEZE BOUNDARY THIS AFTERNOON. AIR MASS IS
EXPECTED TO REMAIN MOIST /DEWPOINTS IN THE LOWER TO MID 60S/ AND AT
LEAST WEAKLY UNSTABLE WITH MLCAPES AROUND 500 J/KG. FORCING FOR
ASCENT ASSOCIATED WITH APPROACHING MIDLEVEL TROUGH COUPLED WITH THE
INCREASING CONVERGENCE IN THE LOW LEVELS SHOULD BE SUFFICIENT TO
INITIATE SHOWERS AND ISOLATED TSTMS ALONG THE IMMEDIATE COAST THIS
AFTERNOON INTO EVENING.

.MEAD.. 03/12/2008

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