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938 

WWUS20 KWNS 160953

SEL0

SPC WW 160953

ALZ000-FLZ000-LAZ000-MSZ000-CWZ000-161700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 30

NWS STORM PREDICTION CENTER NORMAN OK

455 AM CDT SUN MAR 16 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  SOUTHERN ALABAMA

  EXTREME WESTERN PANHANDLE OF FLORIDA

  SMALL PART OF SOUTHEASTERN LOUISIANA

  SOUTHEASTERN MISSISSIPPI

  COASTAL WATERS



* EFFECTIVE THIS SUNDAY MORNING FROM 455 AM UNTIL NOON CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES POSSIBLE

  A FEW SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE

MILES EITHER SIDE OF A LINE FROM 35 MILES NORTH NORTHWEST OF

SLIDELL LOUISIANA TO 35 MILES EAST SOUTHEAST OF EVERGREEN

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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.



&&



DISCUSSION...BAND OF TSTMS ACROSS PORTIONS SRN MS AND SERN LA IS

GRADUALLY BECOMING BETTER ORGANIZED AS IT MOVES INTO MRGLLY

FAVORABLE NEAR-SFC AIR MASS THAT IS FCST TO DESTABILIZE FURTHER

THROUGH REMAINDER MORNING.  ADDITIONAL DISCRETE/CLUSTERED

DEVELOPMENT HAS BEEN GROWING E OF THAT LINE AS WELL...WITHIN REGIME

OF MORE BACKED SFC WINDS ALONG AND S OF MARINE FRONT.  LARGE

LOW-LEVEL HODOGRAPHS AND FAVORABLE DEEP SHEAR EACH SUGGEST POTENTIAL

FOR QLCS VORTICES WITH DAMAGING GUSTS AND A TORNADO OR TWO

POSSIBLE...AND AT LEAST TRANSIENT SUPERCELLS MAY EVOLVE FROM TSTMS

AHEAD OF MAIN LINE.



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

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

GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.

MEAN STORM MOTION VECTOR 24035.





...EDWARDS

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