DAY1SVR: Public Severe Weather Outlook (Automatic)

252
WOUS40 KWNS 251727
PWOSPC
IAZ000-MNZ000-WIZ000-260200-

PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1227 PM CDT FRI JUN 25 2010

...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE NORTHERN PLAINS
TO UPPER MISSISSIPPI VALLEY LATER TODAY AND TONIGHT...

THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
DEVELOPMENT OF SEVERE THUNDERSTORMS WITH VERY LARGE HAIL...DAMAGING
WINDS AND TORNADOES OVER PARTS OF THE NORTHERN PLAINS TO UPPER
MISSISSIPPI VALLEY LATER TODAY AND TONIGHT.

THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE

NORTHERN IOWA
CENTRAL AND SOUTHERN MINNESOTA
SOUTHWESTERN WISCONSIN

OTHER SEVERE THUNDERSTORMS ARE ALSO POSSIBLE FROM THE DAKOTAS
EASTWARD INTO WISCONSIN.

ISOLATED THUNDERSTORMS WERE LOCATED OVER CENTRAL MN AT EARLY
AFTERNOON. WHILE THESE STORMS MAY PRODUCE SEVERE HAIL...SUPERCELLS
ARE EXPECTED TO DEVELOP IN FAR EASTERN SOUTH DAKOTA AND WESTERN
MINNESOTA LATER THIS AFTERNOON. WITH ADDITIONAL HEATING...THESE
STORMS ARE LIKELY TO BECOME SEVERE WITH LARGE HAIL AND EVEN A
TORNADO OR TWO POSSIBLE WITH THE INITIAL STORMS. HOWEVER...A FEW
HOURS AFTER THESE STORMS DEVELOP...THEY SHOULD EVOLVE INTO A SEVERE
THUNDERSTORM LINE. THIS LINE IS EXPECTED TO MOVE SOUTHEASTWARD
ACROSS PARTS OF SOUTHERN/CENTRAL MINNESOTA/NORTHERN IOWA AND
SOUTHWESTERN WISCONSIN THIS EVENING AND INTO THE OVERNIGHT HOURS.
VERY STRONG INSTABILITY AND SUBSTANTIAL VERTICAL SHEAR WILL BE
FAVORABLE FOR WIDESPREAD DAMAGING WINDS. SOME OF THE WIND GUSTS MAY
BE EXTREME...WITH SPEEDS AT OR GREATER THAN 80 MPH POSSIBLE.

STATE AND LOCAL EMERGENCY MANAGERS ARE MONITORING THIS DEVELOPING
SITUATION. THOSE IN THE THREATENED AREA ARE URGED TO REVIEW SEVERE
WEATHER SAFETY RULES AND TO LISTEN TO RADIO...TELEVISION...AND NOAA
WEATHER RADIO FOR POSSIBLE WATCHES...WARNINGS...AND STATEMENTS LATER
TODAY.

..IMY.. 06/25/2010

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