ABC 33/40 EWARN: Severe Weather Watch Notice

From ABC 33/40 E-Warn :

WWUS20 KWNS 202309
SEL0
SPC WW 202309
ALZ000-FLZ000-MSZ000-210400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 550
NWS STORM PREDICTION CENTER NORMAN OK
610 PM CDT FRI JUL 20 2007

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTHWEST ALABAMA
THE WESTERN FLORIDA PANHANDLE
CENTRAL AND SOUTHEAST MISSISSIPPI

EFFECTIVE THIS FRIDAY EVENING FROM 610 PM UNTIL 1100 PM CDT.

HAIL TO 1 INCH 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 10 MILES SOUTH
SOUTHWEST OF JACKSON MISSISSIPPI TO 10 MILES NORTHEAST OF
CRESTVIEW FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 547...WW 548...WW 549...

DISCUSSION...THUNDERSTORM COVERAGE WILL INCREASE THROUGH THE EVENING
FROM CENTRAL MS SEWD INTO SW AL IN RESPONSE TO MULTIPLE STORM
MERGERS AND INTERACTIONS WITH A COMPOSITE OUTFLOW BOUNDARY MOVING
SWD ACROSS MS/AL. MODERATE INSTABILITY IS PRESENT S OF THE NRN
OUTFLOW BOUNDARY...AND THERE WILL BE THE POTENTIAL FOR ADDITIONAL
BOUNDARY/STORM MERGERS WITH THE OUTFLOW PROGRESSING NEWD FROM LA
INTO MS...AND AS CONVECTION REACHES THE REMNANT SEA BREEZE BOUNDARY
IN SRN AL. WET MICROBURSTS WITH DAMAGING WINDS WILL BE THE MAIN
SEVERE THREAT THROUGH LATE EVENING.

AVIATION...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 500. MEAN STORM MOTION
VECTOR 32015.

...THOMPSON
WWWW

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