WATCHES: Tornado Watch Number 8

WWUS20 KWNS 101851
SEL8
SPC WW 101851
OKZ000-TXZ000-110200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 8
NWS STORM PREDICTION CENTER NORMAN OK
1250 PM CST TUE FEB 10 2009

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

CENTRAL AND SOUTHWEST OKLAHOMA
NORTHWEST TEXAS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 1250 PM UNTIL
800 PM CST.

TORNADOES...HAIL TO 3 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 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF CHANDLER
OKLAHOMA TO 35 MILES SOUTHEAST OF ABILENE TEXAS. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU8).

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...CU FIELD CONTINUES TO INCREASE OVER NORTHWEST TX AND
SOUTHWEST OK...IN REGION OF RELATIVELY STRONG HEATING AND INCREASING
MOISTURE. FORECAST SOUNDINGS SUGGEST THIS REGION IS NEAR CONVECTIVE
INITIATION. STORMS ARE EXPECTED TO BECOME SUPERCELLULAR WITH VERY
LARGE HAIL AND ISOLATED TORNADOES POSSIBLE. THREAT FOR STRONG
TORNADOES WILL INCREASE BY EARLY EVENING AS LOW LEVEL VERTICAL WIND
PROFILES STRENGTHEN.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 24035.

...HART

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