ZCZC SPCPWOSPC ALL
   WOUS40 KWNS 101620
   IAZ000-ILZ000-MIZ000-MNZ000-WIZ000-110200-
   
   PUBLIC SEVERE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1120 AM CDT SUN APR 10 2011
   
   ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE UPPER MISSISSIPPI
   VALLEY FROM MID TO LATE AFTERNOON THROUGH EARLY THIS EVENING...
   
   THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
   DEVELOPMENT OF A FEW STRONG TORNADOES OVER PARTS OF THE UPPER
   MISSISSIPPI VALLEY FROM THE MID-LATE AFTERNOON INTO THE EARLY
   EVENING HOURS
   
   THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
   
          NORTHEASTERN IOWA
          EXTREME NORTHWEST ILLINOIS
          WESTERN UPPER MICHIGAN
          SMALL PART OF EAST-CENTRAL AND SOUTHEAST MINNESOTA
          MUCH OF WISCONSIN
   
   ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM THE CENTRAL AND
   UPPER GREAT LAKES REGION SOUTHWEST INTO THE EASTERN PARTS OF THE
   CENTRAL AND SOUTHERN PLAINS.
   
   ...KEY WEATHER PLAYERS...
   A POTENT STORM SYSTEM OVER THE CENTRAL HIGH PLAINS WILL MOVE
   NORTHEAST INTO THE MIDWEST AND GREAT LAKES THIS AFTERNOON AND
   TONIGHT. AHEAD OF THIS FEATURE...WARM AND MOIST AIR IS STREAMING
   NORTHWARD AHEAD OF A COLD FRONT... RESULTING IN SEASONABLY STRONG
   INSTABILITY NEEDED TO SUPPORT SEVERE THUNDERSTORMS.
   
   ...TIMING...
   
   THE ATMOSPHERE IS BECOMING INCREASINGLY UNSTABLE AS MORNING CLOUDS
   DISSOLVE. SEVERE THUNDERSTORMS WILL LIKELY DEVELOP FROM NORTHWEST
   WISCONSIN...EAST-CENTRAL/SOUTHEAST MINNESOTA AND NORTHEASTERN IOWA
   IN THE 300-500 PM CDT. THE STORMS WILL THEN DEVELOP/MOVE THROUGHOUT
   MUCH OF WISCONSIN...WESTERN UPPER MICHIGAN AND NORTHWESTERN ILLINOIS
   THROUGH EARLY EVENING.
   
   ...IMPACTS...
   
   THUNDERSTORMS THAT DEVELOP LATER TODAY WILL LIKELY GROW INTO
   SUPERCELLS WITH THREAT FOR A FEW STRONG TORNADOES...PARTICULARLY
   ACROSS THE MODERATE RISK AREA.  ADDITIONALLY...VERY LARGE
   HAIL...GREATER THAN HEN EGG SIZE...WILL BE LIKELY ALONG WITH
   DAMAGING WIND GUSTS.
   
   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.
   
   ..DIAL/RACY/HART.. 04/10/2011
   
   $$