

000 

WWUS20 KWNS 242002

SEL7

SPC WW 242002

ARZ000-MOZ000-OKZ000-250400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 177

NWS STORM PREDICTION CENTER NORMAN OK

300 PM CDT TUE APR 24 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN ARKANSAS

       SOUTHWEST MISSOURI

       EASTERN OKLAHOMA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 300 PM UNTIL

1100 PM CDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH OF GROVE

OKLAHOMA TO 20 MILES WEST SOUTHWEST 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 172...WW 173...WW

174...WW 175...WW 176...



DISCUSSION...SUSTAINED STORMS/POSSIBLE SUPERCELLS EXPECTED TO SPREAD

NEWD INTO WW THROUGH THIS EVENING...WHERE INCREASINGLY SHEARED

ENVIRONMENT AND RICH LOW LEVEL MOISTURE RETURN SUGGEST THREAT FOR

HAIL AND POSSIBLE TORNADOES...DESPITE COMPLEX AND LIKELY

SLIGHTLY-ELEVATED STORM MODES.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 23040.





...CORFIDI

