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957 

WWUS20 KWNS 260010

SEL1

SPC WW 260010

LAZ000-MSZ000-CWZ000-260700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 521

NWS STORM PREDICTION CENTER NORMAN OK

710 PM CDT SUN OCT 25 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  SOUTHEASTERN LOUISIANA

  COASTAL MISSISSIPPI

  COASTAL WATERS



* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 710 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  A COUPLE TORNADOES POSSIBLE



SUMMARY...A GRADUAL INCREASE IN TORNADO THREAT IS APPARENT ACROSS

THE WATCH AREA AND SHOULD CONTINUE THROUGH AT LEAST PART OF THE

OVERNIGHT HOURS.  GIVEN THE LIKELIHOOD OF A FEW MORE SUPERCELLS

DEVELOPING FROM THIS POINT FORWARD...THIS TORNADO WATCH IS NOW IN

EFFECT.  OTHERWISE...SEE SPC MESOSCALE DISCUSSION 1887 FOR INITIAL

METEOROLOGICAL REASONING.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES EITHER SIDE OF A LINE FROM 40 MILES SOUTH SOUTHWEST OF NEW

ORLEANS LOUISIANA TO 50 MILES EAST SOUTHEAST OF GULFPORT

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



&&



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

400. MEAN STORM MOTION VECTOR 17525.





...EDWARDS

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