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WWUS20 KWNS 091937

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 766

NWS STORM PREDICTION CENTER NORMAN OK

240 PM CDT FRI OCT 9 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL ALABAMA



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 240 PM UNTIL 700

PM CDT.



HAIL TO 1.5 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 55

STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH

SOUTHEAST OF TUSCALOOSA ALABAMA TO 25 MILES NORTHEAST OF

HUNTSVILLE ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 763...WW 764...WW 765...



DISCUSSION...BROKEN LINE OF TSTMS WILL CONTINUE ENEWD ACROSS WW

THROUGH THE EARLY TO MID EVENING AHEAD OF STRONG SURFACE COLD FRONT.

 DEEP LAYER SHEAR REMAINS QUITE STRONG AND SHOULD SUSTAIN BOW ECHOES

AND/OR SUPERCELL STRUCTURES WITH THE MORE INTENSE CORES.  WIND

DAMAGE IS EXPECTED TO ACCOMPANY THIS ACTIVITY...AND AN ISOLATED

TORNADO CAN NOT BE RULED OUT ESPECIALLY INTO PARTS OF NWRN AL.

ADDITIONAL STORMS MAY CONTINUE INCREASING AHEAD OF THE LINE WITH

POTENTIAL FOR ISOLATED DAMAGING WINDS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM

MOTION VECTOR 26040.





...EVANS

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