WATCHES: Severe Thunderstorm Watch Number 394

WWUS20 KWNS 131855
SEL4
SPC WW 131855
KSZ000-OKZ000-TXZ000-140300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 394
NWS STORM PREDICTION CENTER NORMAN OK
155 PM CDT WED JUN 13 2007

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

PARTS OF SOUTHWEST KANSAS
MUCH OF WESTERN AND PARTS OF CENTRAL OKLAHOMA
PARTS OF EASTERN TEXAS PANHANDLE

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL
1000 PM CDT.

HAIL TO 2.5 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 90
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF
DODGE CITY KANSAS TO 15 MILES EAST SOUTHEAST OF FORT SILL
OKLAHOMA. 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.

OTHER WATCH INFORMATION...CONTINUE...WW 391...WW 392...WW 393...

DISCUSSION...WITH A VERY UNSTABLE/VIRTUALLY UNCAPPED AIRMASS ACROSS
WATCH AREA...THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY VICINITY
OUTFLOW BOUNDARY NWRN OK AND DOWN SURFACE TROUGH EASTERN TX
PANHANDLE. SUFFICIENT SHEAR GIVEN INSTABILITY FOR SUPERCELLS.
PRIMARY THREAT WILL BE VERY LARGE HAIL...DOWNBURST DAMAGING WINDS
AND VERY HEAVY RAIN.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 22020.

..HALES

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