PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0702 AM CDT WED MAY 13 2009
...SEVERE THUNDERSTORMS EXPECTED FROM THE CENTRAL/SOUTHERN PLAINS TO
THE MID MISSISSIPPI VALLEY LATER TODAY AND TONIGHT...
THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
DEVELOPMENT OF TORNADOES...LARGE HAIL AND DAMAGING WINDS FROM THE
CENTRAL/SOUTHERN PLAINS TO THE MID MISSISSIPPI VALLEY LATER TODAY
AND TONIGHT.
THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
NORTHWEST ARKANSAS
ILLINOIS
SOUTHEAST KANSAS
MISSOURI
OKLAHOMA
ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM NORTH TEXAS TO THE
GREAT LAKES.
SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP LATER TODAY ALONG A
SHARP COLD FRONT THAT WILL SURGE SOUTHEASTWARD ACROSS THE CENTRAL
PLAINS INTO THE MID MISSISSIPPI VALLEY. THUNDERSTORMS ARE EXPECTED
TO INTENSIFY DURING THE HEAT OF THE DAY AS A VERY MOIST LOW LEVEL
AIRMASS SURGES INTO AN INCREASINGLY CONVERGENT FRONTAL
ZONE...INITIALLY ACROSS PARTS OF SOUTHEAST IA AND WEST CENTRAL
ILLINOIS...THEN DEVELOPING SOUTHWESTWARD ACROSS MISSOURI INTO KANSAS
BY LATE AFTERNOON. THIS ACTIVITY WILL SPREAD SOUTHWARD INTO
OKLAHOMA AND ARKANSAS LATER THIS EVENING. VERY LARGE HAIL AND
DAMAGING WINDS ARE LIKELY WITH MANY STORMS...ALONG WITH A FEW
TORNADOES.
ADDITIONALLY...A MID LEVEL CIRCULATION LOCATED JUST NORTHWEST OF
FORT SMITH ARKANSAS WILL LIFT NORTHEASTWARD INTO SOUTHERN MISSOURI
THIS AFTERNOON. THIS FEATURE WILL LIKELY ENHANCE SEVERE POTENTIAL
DOWNSTREAM ACROSS PARTS OF EASTERN/SOUTHERN MISSOURI INTO SOUTHERN
ILLINOIS. WIND/MOISTURE PROFILES WITH THIS CIRCULATION SUGGEST A
FEW STRONG TORNADOES MAY BE NOTED WITH SUPERCELLS THAT EVOLVE ACROSS
THIS REGION. IN ADDITION...LARGE HAIL AND DAMAGING WINDS SHOULD ALSO
BE ANTICIPATED WITH THESE STORMS.
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.
