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900 

WWUS20 KWNS 011906

SEL0

SPC WW 011906

ALZ000-FLZ000-MSZ000-CWZ000-020200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 10

NWS STORM PREDICTION CENTER NORMAN OK

105 PM CST TUE FEB 1 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST ALABAMA

       THE WESTERN FLORIDA PANHANDLE

       PARTS OF EAST CENTRAL AND SOUTHEAST MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 105 PM UNTIL

800 PM CST.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 85 MILES NORTHWEST OF

EVERGREEN ALABAMA TO 40 MILES SOUTH SOUTHEAST OF GULFPORT

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 9...



DISCUSSION...A BROKEN SQUALL LINE WILL CONTINUE EWD ACROSS SE LA AND

SRN MS THROUGH THE AFTERNOON...REACHING SW AL AROUND 23Z.  OTHER

CONVECTION IS DEVELOPING IN ADVANCE OF THE LINE FROM SE LA INTO SE

MS ALONG THE LLJ AND MOIST AXIS.  A SPECIAL 18Z SOUNDING FROM LIX

SHOWED THAT THE PRIMARY INSTABILITY IS STILL BASED JUST ABOVE THE

SURFACE...BUT VERY STRONG LOW-LEVEL SHEAR IS STILL SUPPORTIVE OF

DAMAGING WINDS AND A COUPLE OF TORNADOES...ESPECIALLY GIVEN THE MORE

CELLULAR CONVECTIVE MODES NOW OBSERVED.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.

MEAN STORM MOTION VECTOR 24045.





...THOMPSON

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