SEL9
SPC WW 280149
ALZ000-MSZ000-280900-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 39
NWS STORM PREDICTION CENTER NORMAN OK
745 PM CST FRI FEB 27 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL ALABAMA
CENTRAL AND EASTERN MISSISSIPPI
EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 745 PM
UNTIL 300 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 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTHWEST OF
GREENWOOD MISSISSIPPI TO 15 MILES EAST SOUTHEAST OF AUBURN
ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
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 38. WATCH NUMBER 38 WILL NOT BE IN EFFECT AFTER 745
PM CST.
DISCUSSION...TSTMS/POSSIBLE SUPERCELLS EXPECTED TO PERSIST ALONG AND
JUST N OF SHALLOW WNW/ESE OUTFLOW BOUNDARY EXTENDING FROM CNTRL MS
INTO CNTRL AL. ALTHOUGH POTENTIAL FOR ADDITIONAL STORM DEVELOPMENT
MAY TEMPORARILY BE DIMINISHED BY NOCTURNAL STABILIZATION...APPROACH
OF 70 KT MID LVL SPEED MAX NOW IN OK SUGGESTS THAT AN ASSOCIATED
INCREASE WILL OCCUR IN WSWLY LLJ OVER WW. THIS IN TURN MAY LEAD TO
AN INCREASE IN STORM COVERAGE LATER TONIGHT/EARLY SAT. STRENGTH OF
DEEP SHEAR AND SUSTAINED NATURE OF LOW LVL WAA MAY SUPPORT A FEW
SUPERCELLS WITH HAIL...SMALL SCALE BOWING SEGMENTS WITH WIND...AND
POSSIBLE TORNADOES.
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
450. MEAN STORM MOTION VECTOR 28030.
...CORFIDI
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