SEL2
SPC WW 291658
ALZ000-FLZ000-GAZ000-300000-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 232
NWS STORM PREDICTION CENTER NORMAN OK
1200 PM CDT SAT MAY 29 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
MUCH OF SOUTHERN AND CENTRAL ALABAMA
MUCH OF FLORIDA PANHANDLE
PARTS OF SOUTHWEST GEORGIA
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM NOON UNTIL 700
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 115
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH
SOUTHEAST OF CRESTVIEW FLORIDA TO 60 MILES NORTH OF MONTGOMERY
ALABAMA. 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.
DISCUSSION...WITH A MOIST AND MDTLY UNSTABLE AIR MASS IN PLACE
COUPLED WITH 25-30KT OF CYCLONIC SHEAR ON E SIDE OF UPPER LOW NEAR
KJAN...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY ACROSS
THE WATCH AREA THRU THE AFTERNOON. MULTICELLULAR/PULSE MODE OF
STORMS WILL SUPPORT LARGE HAIL AND DAMAGING DOWNBURSTS WINDS AS
STORMS MOVE SLOWLY N AND NW TO E OF UPPER LOW CENTER.
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 550. MEAN STORM
MOTION VECTOR 19010.
...HALES
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