Severe Weather Jan. 24th
Posted: Sun Jan 24, 2010 11:39 am
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 9
NWS STORM PREDICTION CENTER NORMAN OK
630 AM CST SUN JAN 24 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND SOUTHERN ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHEAST MISSISSIPPI
COASTAL WATERS
EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 630 AM UNTIL 100
PM CST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTHEAST OF MOBILE
ALABAMA TO 20 MILES NORTH NORTHWEST OF SELMA 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.
DISCUSSION...LOW-LEVEL MOISTURE CONTINUES TO INCREASE /MID 60S
DEWPOINTS/ AS A WARM FRONT LIFTS NWD ACROSS SRN AL AND THE FL
PANHANDLE. THIS MOISTENING WILL SUPPORT MLCAPE VALUES TO NEAR 500
J/KG WITH CONVECTION ROOTED AT THE SURFACE...IN AN ENVIRONMENT OF
VERY STRONG LOW-LEVEL AND DEEP-LAYER VERTICAL SHEAR. GIVEN THE
GRADUAL INCREASE IN THUNDERSTORMS OBSERVED ACROSS SE MS/SW AL...IT
APPEARS THAT THE THREAT FOR DAMAGING WINDS AND A COUPLE OF TORNADOES
WILL LIKEWISE INCREASE THROUGH THE MORNING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 23045.
...THOMPSON
TORNADO WATCH NUMBER 9
NWS STORM PREDICTION CENTER NORMAN OK
630 AM CST SUN JAN 24 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND SOUTHERN ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHEAST MISSISSIPPI
COASTAL WATERS
EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 630 AM UNTIL 100
PM CST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTHEAST OF MOBILE
ALABAMA TO 20 MILES NORTH NORTHWEST OF SELMA 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.
DISCUSSION...LOW-LEVEL MOISTURE CONTINUES TO INCREASE /MID 60S
DEWPOINTS/ AS A WARM FRONT LIFTS NWD ACROSS SRN AL AND THE FL
PANHANDLE. THIS MOISTENING WILL SUPPORT MLCAPE VALUES TO NEAR 500
J/KG WITH CONVECTION ROOTED AT THE SURFACE...IN AN ENVIRONMENT OF
VERY STRONG LOW-LEVEL AND DEEP-LAYER VERTICAL SHEAR. GIVEN THE
GRADUAL INCREASE IN THUNDERSTORMS OBSERVED ACROSS SE MS/SW AL...IT
APPEARS THAT THE THREAT FOR DAMAGING WINDS AND A COUPLE OF TORNADOES
WILL LIKEWISE INCREASE THROUGH THE MORNING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 23045.
...THOMPSON