

912 

WWUS20 KWNS 280850

SEL0

SPC WW 280850

ALZ000-281500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 40

NWS STORM PREDICTION CENTER NORMAN OK

250 AM CST SAT FEB 28 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL ALABAMA



EFFECTIVE THIS SATURDAY MORNING FROM 250 AM UNTIL 900 AM CST.



TORNADOES...HAIL TO 1.5 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 40 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTHWEST OF

TUSCALOOSA ALABAMA TO 50 MILES EAST NORTHEAST OF MONTGOMERY

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 39...



DISCUSSION...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE TO SLOWLY

INCREASE IN COVERAGE ACROSS PARTS OF MS/AL AHEAD OF APPROACHING

UPPER TROUGH.  A SURFACE BOUNDARY EXTENDS FROM SOUTH OF TUSCALOOSA

TO SOUTH OF MONTGOMERY...AND DEMARKS THE NORTHERN EDGE OF RICHER AND

MORE UNSTABLE AIRMASS.  THE REGION ALONG THIS BOUNDARY WILL POSE THE

GREATEST RISK OF SUPERCELLS AND ISOLATED TORNADOES THROUGH MID

MORNING AS IT LIFTS VERY SLOWLY NORTHWARD.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

400. MEAN STORM MOTION VECTOR 26035.





...HART

