518
WOUS40 KWNS 191653
PWOSPC
IAZ000-ILZ000-INZ000-MOZ000-OHZ000-PAZ000-WVZ000-200100-
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1153 AM CDT FRI JUN 19 2009
...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE MID MISSISSIPPI
VALLEY...THE OHIO VALLEY...AND THE CENTRAL APPALACHIANS 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
THROUGH TONIGHT.
THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
SOUTHEASTERN IOWA
NORTHERN AND CENTRAL ILLINOIS
NORTHERN AND CENTRAL INDIANA
NORTHEASTERN MISSOURI
MUCH OF OHIO
EXTREME SOUTHWESTERN PENNSYLVANIA
WESTERN WEST VIRGINIA
ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM THE
CENTRAL/SOUTHERN PLAINS TO THE MID ATLANTIC COAST.
A SEASONABLY STRONG JET STREAM DISTURBANCE...MOVING THROUGH THE
CENTRAL PLAINS...WILL TRACK EASTWARD INTO THE MID MISSISSIPPI VALLEY
TONIGHT...BEFORE REACHING THE NORTHERN OH VALLEY EARLY SATURDAY.
AHEAD OF THE DISTURBANCE...A VERY WARM...MOIST...AND UNSTABLE AIR
MASS WILL BE SITUATED ACROSS THE MISSISSIPPI/OHIO VALLEYS AND
CENTRAL APPALACHIANS. AS DAYTIME HEATING FURTHER DESTABILIZES THE
ATMOSPHERE...NUMEROUS STRONG TO SEVERE THUNDERSTORMS WILL FORM
WITHIN THE AXIS OF INSTABILITY. CONDITIONS WILL BE FAVORABLE FOR A
FEW SUPERCELLS WITH LARGE HAIL AND EVEN A FEW TORNADOES. HOWEVER
...THE GREATER THREAT IS FOR THESE STORMS TO ORGANIZE INTO
LONG-LIVED...BOW-SHAPED COMPLEXES...WITH WIDESPREAD WIND
DAMAGE...SOME SIGNIFICANT...EXPECTED LATE THIS AFTERNOON AND
OVERNIGHT. THE HIGHEST THREAT FOR MORE CONCENTRATED AND INTENSE
SEVERE WEATHER WILL STRETCH FROM SOUTHEASTERN IOWA/NORTHEASTERN
MISSOURI EASTWARD INTO SOUTHWESTERN PENNSYLVANIA/WESTERN WEST
VIRGINIA.
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.
..IMY.. 06/19/2009
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page