WATCHES: Severe Thunderstorm Watch Number 60

WWUS20 KWNS 170530
SEL0
SPC WW 170530
ARZ000-LAZ000-MSZ000-CWZ000-171100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 60
NWS STORM PREDICTION CENTER NORMAN OK
1130 PM CST SAT FEB 16 2008

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

SOUTHEAST ARKANSAS
EASTERN LOUISIANA
WESTERN MISSISSIPPI
COASTAL WATERS

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1130 PM
UNTIL 500 AM CST.

HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES EAST
NORTHEAST OF GREENVILLE MISSISSIPPI TO 50 MILES SOUTH SOUTHEAST
OF INTRACOASTAL CITY LOUISIANA. 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 59...

DISCUSSION...LINE OF THUNDERSTORMS IS INTENSIFYING AS IT MOVES
ACROSS LA. THESE STORMS ARE ASSOCIATED WITH AN EXTREMELY STRONG MID
LEVEL SHORTWAVE TROUGH WHICH WILL EJECT ACROSS WATCH AREA OVERNIGHT.
STRONG WIND FIELDS AT ALL LEVELS WILL MAINTAIN A RISK OF LOCALLY
DAMAGING WINDS WITH BOW/LEWP STRUCTURES...DESPITE RATHER WEAK
INSTABILITY.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM MOTION
VECTOR 24045.

..HART

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