

584 

WWUS20 KWNS 182016

SEL3

SPC WW 182016

ALZ000-GAZ000-190200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 53

NWS STORM PREDICTION CENTER NORMAN OK

415 PM EDT MON MAR 18 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EAST CENTRAL ALABAMA

       WESTERN GEORGIA



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 415 PM UNTIL

1000 PM EDT.



TORNADOES...HAIL TO 2 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 85 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF ATLANTA

GEORGIA TO 45 MILES EAST OF TROY ALABAMA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU3).



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 52...



DISCUSSION...ISOLATED AND DISCRETE THUNDERSTORMS ARE FORMING OVER

EASTERN AL...IN REGION OF 300-400 M2/S2 EFFECTIVE SRH VALUES AND

FAVORABLE DEEP-LAYER SHEAR.  POTENTIAL EXISTS FOR A FEW OF THESE

STORMS TO BECOME SUPERCELLULAR WITH THE RISK OF HAIL AND AN ISOLATED

TORNADO OR TWO.  OTHERWISE...FAST-MOVING BAND OF THUNDERSTORMS OVER

WESTERN AL WILL AFFECT THE WATCH AREA LATER THIS AFTERNOON AND

EVENING WITH A RISK OF DAMAGING WINDS.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 27035.





...HART



148 

WWUS20 KWNS 182016

SEL3

SPC WW 182016

ALZ000-GAZ000-190200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 53

NWS STORM PREDICTION CENTER NORMAN OK

415 PM EDT MON MAR 18 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EAST CENTRAL ALABAMA

       WESTERN GEORGIA



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 415 PM UNTIL

1000 PM EDT.



TORNADOES...HAIL TO 2 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 85 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF ATLANTA

GEORGIA TO 45 MILES EAST OF TROY ALABAMA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU3).



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 52...



DISCUSSION...ISOLATED AND DISCRETE THUNDERSTORMS ARE FORMING OVER

EASTERN AL...IN REGION OF 300-400 M2/S2 EFFECTIVE SRH VALUES AND

FAVORABLE DEEP-LAYER SHEAR.  POTENTIAL EXISTS FOR A FEW OF THESE

STORMS TO BECOME SUPERCELLULAR WITH THE RISK OF HAIL AND AN ISOLATED

TORNADO OR TWO.  OTHERWISE...FAST-MOVING BAND OF THUNDERSTORMS OVER

WESTERN AL WILL AFFECT THE WATCH AREA LATER THIS AFTERNOON AND

EVENING WITH A RISK OF DAMAGING WINDS.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 27035.





...HART

