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WWUS20 KWNS 081403

SEL8

SPC WW 081403

ARZ000-MSZ000-TNZ000-082100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 368

NWS STORM PREDICTION CENTER NORMAN OK

905 AM CDT FRI JUN 8 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       MUCH OF SOUTHERN AND EASTERN ARKANSAS

       PARTS OF NORTHERN MISSISSIPPI

       WESTERN AND PARTS OF MIDDLE TENNESSEE



EFFECTIVE THIS FRIDAY MORNING AND AFTERNOON FROM 905 AM UNTIL 400

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 65

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTH

SOUTHEAST OF NASHVILLE TENNESSEE TO 5 MILES SOUTH OF DE QUEEN

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...CONTINUE...WW 367...



DISCUSSION...LINE OF THUNDERSTORMS FROM BOOTHEEL SWWD INTO SERN OK

WILL CONTINUE DEVELOPING E/SE INTO A MODERATELY UNSTABLE AND WEAKLY

CAPPED AIRMASS. WITH 30-40KT OF DEEP LAYER SHEAR COUPLED WITH STEEP

MID LEVEL LAPSE RATES...WIND DAMAGE THREAT WILL INCREASE WITH

CONTINUED SURFACE HEATING.



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 550. MEAN STORM

MOTION VECTOR 24030.





...HALES

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