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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 876

NWS STORM PREDICTION CENTER NORMAN OK

200 PM CST TUE NOV 8 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST TEXAS

       COASTAL WATERS



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 200 PM UNTIL

800 PM CST.



TORNADOES...HAIL TO 1.5 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 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST SOUTHWEST OF

HUNTSVILLE TEXAS TO 45 MILES NORTH NORTHEAST OF PORT ARTHUR

TEXAS.  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 875...



DISCUSSION...PRE-FRONTAL CONVECTION WILL PERSIST THROUGH THE

AFTERNOON...WHILE ADDITIONAL STORMS ARE EXPECTED TO FORM ALONG THE

COLD FRONT LATER THIS AFTERNOON/EVENING AS IT MOVES ACROSS SE TX.

THE PRE-FRONTAL ENVIRONMENT REMAINS QUITE MOIST AND MODERATELY

UNSTABLE...WHILE LOCAL VWP/S REVEAL SUFFICIENT VERTICAL SHEAR TO

MAINTAIN A RISK FOR ISOLATED SUPERCELLS WITH AN ATTENDANT RISK FOR A

TORNADO OR TWO.  A FEW DAMAGING GUSTS WILL ALSO BE POSSIBLE.



AVIATION...TORNADOES AND 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

500. MEAN STORM MOTION VECTOR 24025.





...THOMPSON

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