

647 

WWUS20 KWNS 292054

SEL5

SPC WW 292054

ALZ000-LAZ000-MSZ000-CWZ000-300500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 595...RESENT

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT WED AUG 29 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       FAR SOUTHWEST ALABAMA

       SOUTHEAST LOUISIANA

       SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 350 PM UNTIL MIDNIGHT CDT.



TORNADOES...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS

LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES NORTH NORTHWEST OF

BATON ROUGE LOUISIANA TO 35 MILES EAST SOUTHEAST OF MOBILE

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 594. WATCH NUMBER 594 WILL NOT BE IN EFFECT AFTER

350 PM CDT.



DISCUSSION...CONVECTIVE BANDS TO THE EAST/NORTHEAST OF TS ISAAC ARE

EXPECTED TO CONTINUE LIFTING NWD/NWWD FROM THE ADJACENT GULF COASTAL

WATERS INTO SERN LA/SRN MS AND SWRN AL INTO THE EVENING.  VAD WIND

PROFILES AT KLIX/KMOB/KDGX SHOW 50-70 KT LOW LEVEL WINDS...VERY

STRONG LOW LEVEL SHEAR IN THE LOWEST 1 KM...AND 150-300 M2/S2 SRH

BASED ON OBSERVED STORM MOTIONS.  THIS IS CONSISTENT WITH RADAR

OBSERVATIONS OF SHALLOW/BRIEF SUPERCELLS EMBEDDED WITHIN THE

CONVECTIVE BANDS WHICH WILL MAINTAIN A THREAT FOR ISOLATED TORNADOES

INTO TONIGHT AS ISAAC MOVES SLOWLY NWWD ACROSS SRN LA.



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

TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI

WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 15050.





...WEISS



398 

WWUS20 KWNS 292054

SEL5

SPC WW 292054

ALZ000-LAZ000-MSZ000-CWZ000-300500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 595

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT WED AUG 29 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       FAR SOUTHWEST ALABAMA

       SOUTHEAST LOUISIANA

       SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 350 PM UNTIL MIDNIGHT CDT.



TORNADOES...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS

LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES NORTH NORTHWEST OF

BATON ROUGE LOUISIANA TO 35 MILES EAST SOUTHEAST OF MOBILE

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 594. WATCH NUMBER 594 WILL NOT BE IN EFFECT AFTER

350 PM CDT.



DISCUSSION...CONVECTIVE BANDS TO THE EAST/NORTHEAST OF TS ISAAC ARE

EXPECTED TO CONTINUE LIFTING NWD/NWWD FROM THE ADJACENT GULF COASTAL

WATERS INTO SERN LA/SRN MS AND SWRN AL INTO THE EVENING.  VAD WIND

PROFILES AT KLIX/KMOB/KDGX SHOW 50-70 KT LOW LEVEL WINDS...VERY

STRONG LOW LEVEL SHEAR IN THE LOWEST 1 KM...AND 150-300 M2/S2 SRH

BASED ON OBSERVED STORM MOTIONS.  THIS IS CONSISTENT WITH RADAR

OBSERVATIONS OF SHALLOW/BRIEF SUPERCELLS EMBEDDED WITHIN THE

CONVECTIVE BANDS WHICH WILL MAINTAIN A THREAT FOR ISOLATED TORNADOES

INTO TONIGHT AS ISAAC MOVES SLOWLY NWWD ACROSS SRN LA.



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

TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI

WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 15050.





...WEISS

