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Public Severe Weather Outlook
Print Version
   ZCZC SPCPWOSPC ALL
   WOUS40 KWNS 240921
   ALZ000-ARZ000-LAZ000-MSZ000-TNZ000-241800-
   
   PUBLIC SEVERE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0421 AM CDT SAT APR 24 2010
   
   ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE LOWER MISSISSIPPI
   RIVER VALLEY...MID SOUTH AND TENNESSEE RIVER VALLEY TODAY...
   
   THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
   DEVELOPMENT OF A FEW STRONG...LONG-TRACK TORNADOES OVER PARTS OF THE
   LOWER MISSISSIPPI RIVER VALLEY...MID SOUTH AND TENNESSEE RIVER
   VALLEY TODAY.
   
   THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
   
          ALABAMA
          ARKANSAS
          LOUISIANA
          MISSISSIPPI
          TENNESSEE
   
   ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM...THE NORTHERN GULF
   COAST NORTHWARD INTO THE LOWER MISSOURI VALLEY AND MIDDLE
   MISSISSIPPI VALLEYS EASTWARD INTO THE OHIO VALLEY AND SOUTHERN
   APPALACHIANS.
   
   A VIGOROUS UPPER LEVEL STORM SYSTEM WILL CONTINUE TO STRENGTHEN
   TODAY AS IT MOVES FROM TEXAS NORTHEASTWARD TO THE SOUTHERN GREAT
   LAKES REGION OVERNIGHT.  A COLD FRONT WILL MOVE EASTWARD ACROSS THE
   MIDDLE AND LOWER MISSISSIPPI RIVER VALLEY TODAY BEFORE MOVING
   EASTWARD INTO THE OHIO RIVER VALLEY AND EXTENDING SOUTHWARD TO THE
   MID SOUTH REGION LATE TONIGHT.  
   
   AHEAD OF THE COLD FRONT...A WARM...INCREASING MOIST AND UNSTABLE AIR
   MASS WILL SPREAD NORTHWARD FROM THE LOWER MISSISSIPPI RIVER VALLEY
   AND NORTHERN GULF COAST STATES INTO THE MIDDLE MISSISSIPPI AND OHIO
   RIVER VALLEYS.  STRONG TO SEVERE THUNDERSTORMS ONGOING THIS MORNING
   WILL CONTINUE TO DEVELOP AND BECOME MORE NUMEROUS THROUGHOUT THE DAY
   AND INTO TONIGHT AS THEY SPREAD NORTHEASTWARD ACROSS A LARGE PORTION
   OF THE LOWER AND MIDDLE MISSISSIPPI RIVER VALLEY NORTH AND EASTWARD
   INTO THE OHIO RIVER VALLEY AND SOUTHERN APPALACHIANS.  
   
   A POTENTIALLY SIGNIFICANT SEVERE WEATHER OUTBREAK RESULTING FROM
   INCREASINGLY VOLATILE ATMOSPHERIC CONDITIONS WILL LIKELY INCLUDE AN
   INCREASING AND CONCENTRATED THREAT FOR TORNADOES...LARGE HAIL...AND
   DAMAGING WINDS.  THE AREAS MOST LIKELY TO BE AFFECTED BY THIS
   ACTIVITY WILL BE ACROSS THE LOWER MISSISSIPPI RIVER VALLEY BEGINNING
   THIS MORNING INTO THE AFTERNOON AND SPREADING NORTHEASTWARD INTO THE
   TENNESSEE RIVER VALLEY AND MID SOUTH THIS AFTERNOON AND INTO THE
   NIGHTTIME HOURS.  VERY STRONG WINDS ALOFT CHANGING DIRECTION WITH
   HEIGHT WILL SUPPORT THE POSSIBILITY FOR A FEW STRONG AND POTENTIALLY
   VIOLENT LONG TRACK TORNADOES ACROSS THIS AREA.
   
   STATE AND LOCAL EMERGENCY MANAGERS ARE MONITORING THIS POTENTIALLY
   VERY DANGEROUS 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.
   
   ..SMITH.. 04/24/2010
   
   $$        
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Page last modified: April 24, 2010
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