

872 

WWUS20 KWNS 022302

SEL8

SPC WW 022302

ARZ000-LAZ000-OKZ000-TXZ000-030500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 228

NWS STORM PREDICTION CENTER NORMAN OK

605 PM CDT SAT MAY 2 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ARKANSAS

       NORTHERN LOUISIANA

       SOUTHEAST OKLAHOMA

       NORTHEAST AND NORTH CENTRAL TEXAS



EFFECTIVE THIS SATURDAY NIGHT FROM 605 PM UNTIL MIDNIGHT CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF

FORT WORTH TEXAS TO 50 MILES SOUTHEAST OF MONTICELLO ARKANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 225...WW 226...WW 227...



DISCUSSION...MULTIPLE CLUSTERS OF SEVERE STORMS ARE MOVING ACROSS

NORTHEAST TX AND INTO SOUTHERN AR/NORTHERN LA THIS EVENING.  VERY

UNSTABLE AIRMASS AND SUFFICIENT VERTICAL SHEAR...COUPLED WITH

APPROACHING STRONG UPPER TROUGH WILL POSE A CONTINUED RISK OF SEVERE

STORMS FOR SEVERAL MORE HOURS.  BOWS/LEWPS AND ISOLATED SUPERCELLS

MAY RESULT IN TORNADOES...DAMAGING WINDS...AND HAIL.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 25030.





...HART

