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ZCZC SPCPWOSPC ALL
WOUS40 KWNS 101715
ARZ000-LAZ000-OKZ000-TXZ000-110115-
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1115 AM CST TUE FEB 10 2009
...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE SOUTHERN PLAINS
INTO THE MID AND LOWER MISSISSIPPI VALLEY THIS AFTERNOON AND
TONIGHT...
THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
DEVELOPMENT OF TORNADOES...LARGE HAIL AND DAMAGING WINDS OVER PARTS
OF THE SOUTHERN PLAINS INTO THE MID AND LOWER MISSISSIPPI VALLEY
THIS AFTERNOON AND TONIGHT.
THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
WESTERN 2/3 OF ARKANSAS
NORTHWEST LOUISIANA
MUCH OF THE EASTERN HALF OF OKLAHOMA
NORTHEAST TEXAS
ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM THE MIDDLE TEXAS
COAST EASTWARD TO THE MOUTH OF THE MISSISSIPPI RIVER...AND AS FAR
NORTH AS KANSAS...MISSOURI...AND ILLINOIS.
A STRONG MIDDLE- AND UPPER-LEVEL STORM SYSTEM CONTINUES MOVING
ACROSS THE FOUR CORNERS REGION...AND WILL EMERGE INTO THE CENTRAL
AND SOUTHERN PLAINS LATER THIS AFTERNOON. AHEAD OF THIS SYSTEM...A
MOIST LOW-LEVEL AIRMASS CONTINUES STREAMING NORTHWARD ACROSS TEXAS
AND LOUISIANA INTO EASTERN OKLAHOMA AND THE OZARKS REGION. DAYTIME
HEATING OF THE MOISTENING BOUNDARY LAYER WILL INCREASE THROUGH THE
AFTERNOON ACROSS OKLAHOMA AND TEXAS AS INITIAL CLOUD COVER SHIFTS
EASTWARD. THIS COMBINED WITH COOLING ALOFT IN CONJUNCTION WITH THE
APPROACHING STORM SYSTEM LATER TODAY WILL RESULT IN AIRMASS
DESTABILIZATION -- SUPPORTIVE OF THUNDERSTORM DEVELOPMENT BY MID TO
LATE AFTERNOON.
INITIAL STORM MODE IS FORECAST TO BE SUPERCELLULAR...AS A VERY
STRONG WIND FIELD -- VEERING/INCREASING WITH HEIGHT THROUGH THE
LOWER TROPOSPHERE -- RESULTS IN FAVORABLE SHEAR FOR STORM ROTATION.
AS STORMS DEVELOP FROM CENTRAL OKLAHOMA SOUTHWARD INTO NORTH CENTRAL
TEXAS LATER THIS AFTERNOON...EXPECT LARGE HAIL AND LOCALLY-DAMAGING
WINDS ALONG WITH THE POTENTIAL FOR ISOLATED STRONG TORNADOES.
OVERNIGHT...AS A COLD FRONT APPROACHES FROM THE WEST...STORMS SHOULD
BECOME ORGANIZED IN A MORE LINEAR FASHION ALONG THE FRONT...AND THEN
SPREAD RAPIDLY EASTWARD TOWARD THE MISSISSIPPI VALLEY. ALONG WITH A
CONTINUED THREAT FOR HAIL AND ISOLATED TORNADOES...WIDESPREAD
DAMAGING WINDS SHOULD BECOME INCREASINGLY LIKELY.
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.
..GOSS.. 02/10/2009
$$
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