

342 

WWUS20 KWNS 110647

SEL7

SPC WW 110647

ARZ000-OKZ000-TXZ000-111100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 127

NWS STORM PREDICTION CENTER NORMAN OK

150 AM CDT MON APR 11 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST ARKANSAS

       EXTREME SOUTHEAST OKLAHOMA

       NORTHEAST TEXAS



EFFECTIVE THIS MONDAY MORNING FROM 150 AM UNTIL 600 AM CDT.



TORNADOES...HAIL TO 2 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 EAST AND WEST OF A LINE FROM 10 MILES WEST SOUTHWEST OF

TYLER TEXAS TO 35 MILES EAST NORTHEAST OF DE QUEEN ARKANSAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 123...WW 124...WW 126...



DISCUSSION...CLUSTERS OF INTENSE THUNDERSTORMS...INCLUDING BOW

ECHOES...ARE TRACK NORTHEASTWARD ACROSS NORTHEAST TX.  THESE STORMS

WILL PROGRESS ACROSS THE WATCH AREA THROUGH THE EARLY MORNING HOURS.

 DAMAGING WINDS ARE THE GREATEST THREAT.  HOWEVER...STRONG LOW LEVEL

VERTICAL SHEAR AND BOW/LEWP STRUCTURES WILL POSE A THREAT FOR

ISOLATED TORNADOES.



AVIATION...TORNADOES AND 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 25035.





...HART

