...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 THUNDERSTORMSWITH 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.
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