WATCHES: Severe Thunderstorm Watch Number 124

WWUS20 KWNS 171830
SEL4
SPC WW 171830
OKZ000-TXZ000-180000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 124
NWS STORM PREDICTION CENTER NORMAN OK
130 PM CDT MON MAR 17 2008

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

PARTS OF WESTERN OKLAHOMA
PARTS OF NORTHWEST AND WEST CENTRAL TEXAS

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 130 PM 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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
OKLAHOMA CITY OKLAHOMA TO 40 MILES EAST SOUTHEAST OF SAN ANGELO
TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY
ALONG THE COLD FRONT/DRY LINE THAT EXTENDS FROM SWRN OK TO W OF SJT.
STRONG DEEP LAYER SHEAR PROFILES AND STEEP MID LEVEL LAPSE RATES
SUPPORT LARGE HAIL POTENTIAL. STORMS PARTICULARLY ALONG THE DRY
LINE COULD DEVELOP INTO SUPERCELLS ENHANCING SEVERE THREAT DURING
THE AFTERNOON.

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 500. MEAN STORM
MOTION VECTOR 22030.

..HALES

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