

097 

WWUS20 KWNS 181832

SEL2

SPC WW 181832

ALZ000-ARZ000-GAZ000-LAZ000-MSZ000-TNZ000-190200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 52

NWS STORM PREDICTION CENTER NORMAN OK

130 PM CDT MON MAR 18 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL ALABAMA

       EXTREME SOUTHEAST ARKANSAS

       NORTHWEST GEORGIA

       EXTREME NORTHEAST LOUISIANA

       CENTRAL MISSISSIPPI

       SOUTHERN MIDDLE TENNESSEE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 130 PM UNTIL 900

PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES SOUTHWEST

OF GREENVILLE MISSISSIPPI TO 20 MILES EAST OF ROME GEORGIA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 51...



DISCUSSION...AN INTENSIFYING BAND OF THUNDERSTORMS EXTENDS FROM

SOUTHEAST AR...ACROSS NORTH CENTRAL MS...INTO NORTHWEST AL.  THESE

STORMS ARE EXPECTED TO CONTINUE TO STRENGTHEN AND SPREAD ACROSS THE

WATCH AREA THIS AFTERNOON AND EVENING.  MODERATE INSTABILITY...COOL

TEMPERATURES ALOFT...AND FAVORABLE DEEP LAYER EFFECTIVE SHEAR

PROFILES WILL PROMOTE ROTATING CELLS AND BOWING STRUCTURES CAPABLE

OF LARGE HAIL AND DAMAGING WINDS.  AN ISOLATED TORNADO CANNOT BE

RULED OUT AS WELL.



AVIATION...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 27040.





...HART



754 

WWUS20 KWNS 181832

SEL2

SPC WW 181832

ALZ000-ARZ000-GAZ000-LAZ000-MSZ000-TNZ000-190200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 52

NWS STORM PREDICTION CENTER NORMAN OK

130 PM CDT MON MAR 18 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL ALABAMA

       EXTREME SOUTHEAST ARKANSAS

       NORTHWEST GEORGIA

       EXTREME NORTHEAST LOUISIANA

       CENTRAL MISSISSIPPI

       SOUTHERN MIDDLE TENNESSEE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 130 PM UNTIL 900

PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES SOUTHWEST

OF GREENVILLE MISSISSIPPI TO 20 MILES EAST OF ROME GEORGIA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 51...



DISCUSSION...AN INTENSIFYING BAND OF THUNDERSTORMS EXTENDS FROM

SOUTHEAST AR...ACROSS NORTH CENTRAL MS...INTO NORTHWEST AL.  THESE

STORMS ARE EXPECTED TO CONTINUE TO STRENGTHEN AND SPREAD ACROSS THE

WATCH AREA THIS AFTERNOON AND EVENING.  MODERATE INSTABILITY...COOL

TEMPERATURES ALOFT...AND FAVORABLE DEEP LAYER EFFECTIVE SHEAR

PROFILES WILL PROMOTE ROTATING CELLS AND BOWING STRUCTURES CAPABLE

OF LARGE HAIL AND DAMAGING WINDS.  AN ISOLATED TORNADO CANNOT BE

RULED OUT AS WELL.



AVIATION...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 27040.





...HART

