

000 

WWUS20 KWNS 180420

SEL6

SPC WW 180420

ARZ000-181100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 716

NWS STORM PREDICTION CENTER NORMAN OK

1120 PM CDT WED OCT 17 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF ARKANSAS



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1120 PM

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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 60 MILES WEST OF MONTICELLO

ARKANSAS TO 35 MILES NORTHEAST OF FLIPPIN ARKANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU6).



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 713...WW 714...WW 715...



DISCUSSION...CLUSTERS OF INTENSE THUNDERSTORMS CONTINUE TO

RE-DEVELOP ACROSS AR AS UPPER TROUGH ROTATES THROUGH REGION.  VERY

STRONG VERTICAL SHEAR PROFILES /3KM SRH OVER 500 M2/S2/ AND

DEWPOINTS IN THE LOWER 70S WILL MAINTAIN A RISK OF SUPERCELLS

CAPABLE OF TORNADOES AND DAMAGING WINDS THROUGH MUCH OF THE NIGHT.



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 24035.





...HART

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