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608 

WWUS20 KWNS 292026

SEL2

SPC WW 292026

ARZ000-LAZ000-TXZ000-300400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 212

NWS STORM PREDICTION CENTER NORMAN OK

325 PM CDT WED APR 29 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       LARGE PART OF SOUTHWEST ARKANSAS

       PARTS OF NORTHWEST LOUISIANA

       LARGE PART OF NORTH CENTRAL AND NORTHEAST TEXAS



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 325 PM UNTIL

1100 PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES NORTHWEST

OF FORT WORTH TEXAS TO 50 MILES SOUTHEAST OF HOT SPRINGS

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 209. WATCH NUMBER 209 WILL NOT

BE IN EFFECT AFTER 325 PM CDT. CONTINUE...WW 210...WW 211...



DISCUSSION...OUTFLOW BOUNDARY JUST S OF RED RIVER WILL BE FOCUS FOR

RENEWED SEVERE THUNDERSTORMS GIVEN THE VERY MOIST/UNSTABLE WARM

SECTOR ACROSS THE WATCH AREA.  IN ADDITION ONGOING SQUALL LINE NOW

ENTERING SWRN AR WILL CONTINUE TO BE A WIND DAMAGE THREAT UNTIL THIS

EVENING WITH BOUNDARY LAYER BEGINS TO STABILIZE. WRN PORTIONS OF

SEVERE WATCH MAY NEED TO BE UPGRADED BY THIS EVENING IF THIS TORNADO

THREAT CURRENTLY ACROSS NWRN TX DEVELOPS FURTHER E.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 26035.





...HALES

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