ZCZC SPCPWOSPC ALL
   WOUS40 KWNS 220950
   IAZ000-ILZ000-MNZ000-MOZ000-WIZ000-221800-
   
   PUBLIC SEVERE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0450 AM CDT SUN MAY 22 2011
   
   ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE MID AND UPPER
   MISSISSIPPI VALLEY THIS AFTERNOON AND EVENING...
   
   THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
   DEVELOPMENT OF TORNADOES...LARGE HAIL AND DAMAGING WINDS OVER PARTS
   OF THE MID AND UPPER MISSISSIPPI VALLEY THIS AFTERNOON AND EVENING.
   
   THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
   
          EASTERN AND SOUTHERN IOWA
          WESTERN AND NORTHERN ILLINOIS
          SOUTHEAST MINNESOTA
          NORTHEAST MISSOURI
          WESTERN AND SOUTHERN WISCONSIN
   
   ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM THE SOUTHERN PLAINS
   THROUGH THE OZARKS INTO THE UPPER GREAT LAKES.
   
   A POTENT UPPER LEVEL STORM CONTAINING STRONG JET STREAM WINDS NOW
   OVER NEBRASKA WILL TRACK NORTHEAST INTO SOUTHERN MINNESOTA LATER
   TODAY...AND INTO WISCONSIN TONIGHT.
   
   AHEAD OF THIS FEATURE...INCREASINGLY WARM AND HUMID AIR WILL SPREAD
   NORTHEAST ACROSS MISSOURI INTO MUCH OF IOWA...ILLINOIS...WISCONSIN
   AND SOUTHEAST MINNESOTA. 
   
   A COLD FRONT ASSOCIATED WITH THE UPPER LEVEL DISTURBANCE WILL SWEEP
   EAST ACROSS THOSE STATES LATER TODAY AND TONIGHT...AND WILL SERVE AS
   A FOCUS FOR INTENSE THUNDERSTORMS AS DAYTIME HEATING FURTHER
   DESTABILIZES THE REGION.
   
   THE COMBINATION OF STRONG THUNDERSTORMS WITH WIND PROFILES THAT WILL
   BE FAVORABLE FOR STORM ROTATION MAY YIELD A FEW TORNADOES...ONE OR
   TWO OF WHICH COULD BE STRONG...IN ADDITION TO VERY LARGE HAIL AND
   DAMAGING WIND.
   
   WHILE THE GREATEST SEVERE THREAT SHOULD EXIST DURING THE MID TO LATE
   AFTERNOON OVER PARTS OF THE MID AND UPPER MISSISSIPPI VALLEYS...A
   MORE LIMITED SEVERE RISK MAY CONTINUE THROUGH THE EVENING AS THE
   STORMS MERGE INTO A LINE AND CONTINUE EAST TOWARD INDIANA AND LOWER
   MICHIGAN.
   
   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.
   
   ..CORFIDI.. 05/22/2011
   
   $$