Friday Afternoon Severe Weather for IA, IL, IN
Posted by JAC on 6/19/2009, 8:29 am


ZCZC SPCPWOSPC ALL
  WOUS40 KWNS 190937
  IAZ000-ILZ000-INZ000-MIZ000-MOZ000-OHZ000-WIZ000-WVZ000-191730-
 
  PUBLIC SEVERE WEATHER OUTLOOK 
  NWS STORM PREDICTION CENTER NORMAN OK
  0437 AM CDT FRI JUN 19 2009
 
  ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE MID MISSISSIPPI
  VALLEY...THE OHIO VALLEY...AND THE CENTRAL APPALACHIANS TODAY
  THROUGH TONIGHT...
 
  THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
  DEVELOPMENT OF DAMAGING WINDS...LARGE HAIL...AND TORNADOES FROM THE
  MID MISSISSIPPI VALLEY INTO THE OHIO VALLEY AND CENTRAL APPALACHIANS
  TODAY THROUGH TONIGHT.
 
  THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
 
          SOUTHERN AND EASTERN IOWA
          NORTHERN AND CENTRAL ILLINOIS
          NORTHERN AND CENTRAL INDIANA
          SOUTHERN MICHIGAN
          NORTHERN MISSOURI
          OHIO
          SOUTHERN WISCONSIN
          NORTHERN AND WESTERN WEST VIRGINIA
 
  ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM THE CENTRAL PLAINS
  TO THE MID ATLANTIC COAST.
 
  A SEASONABLY STRONG JET STREAM DISTURBANCE NOW OVER COLORADO WILL
  TRACK EAST INTO NEBRASKA TODAY AND INTO THE MID MISSISSIPPI VALLEY
  TONIGHT...BEFORE REACHING THE LOWER GREAT LAKES EARLY SATURDAY.
 
  AHEAD OF THE DISTURBANCE...A BROAD CURRENT OF VERY WARM...MOIST
  ...AND UNSTABLE AIR WILL PREVAIL FROM PARTS OF IOWA AND MISSOURI
  EAST INTO MUCH OF THE OHIO VALLEY AND CENTRAL APPALACHIANS.
  AS DAYTIME HEATING FURTHER DESTABILIZES THE REGION...NUMEROUS STRONG
  TO SEVERE THUNDERSTORMS WILL FORM WITHIN THE AXIS OF INSTABILITY.
  CONDITIONS WILL BE FAVORABLE FOR THE STORMS TO ORGANIZE INTO
  LONG-LIVED...BOW-SHAPED BANDS.
 
  WINDS IN THE MIDDLE AND UPPER LEVELS OF THE ATMOSPHERE WILL INCREASE
  OVER THE MISSISSIPPI AND OHIO RIVER VALLEYS LATER TODAY AND TONIGHT
  WITH THE CONTINUED EASTWARD MOTION OF THE COLORADO UPPER IMPULSE.
  COUPLED WITH THE VERY WARM AND HUMID CONDITIONS PRESENT AT LOWER
  LEVELS...THIS SETUP MAY YIELD SEVERAL SWATHS OF DAMAGING
  THUNDERSTORM WINDS...AREAS OF LARGE HAIL...AND A FEW TORNADOES.
 
  WHILE THE STORMS SHOULD BE MOST WIDESPREAD THIS AFTERNOON THROUGH
  EARLY TONIGHT...A MORE LIMITED SEVERE THREAT WILL CONTINUE THROUGH
  EARLY SATURDAY...ESPECIALLY FROM INDIANA EAST INTO THE CENTRAL
  APPALACHIANS AND MID ATLANTIC STATES.
 
  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.. 06/19/2009
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Friday Afternoon Severe Weather for IA, IL, IN - JAC, 6/19/2009, 8:29 am
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