SPC Severe Thunderstorm Watch 86

WW 86 SEVERE TSTM KS OK TX 092235Z – 100600Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 86
NWS STORM PREDICTION CENTER NORMAN OK
535 PM CDT TUE APR 9 2013

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

       CENTRAL KANSAS
       CENTRAL AND WESTERN OKLAHOMA
       WESTERN NORTH TEXAS

EFFECTIVE THIS TUESDAY AFTERNOON AND WEDNESDAY MORNING FROM 535
PM UNTIL 100 AM 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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH
SOUTHWEST OF WICHITA FALLS TEXAS TO 45 MILES NORTH OF HUTCHINSON
KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

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...SCATTERED THUNDERSTORMS ARE EXPECTED TO INTENSIFY THIS
AFTERNOON AND EVENING OVER THE WATCH AREA.  STORMS WILL BE BEHIND A
STRONG SURFACE COLD FRONT.  BUT DESPITE THE VERY COLD LOW LEVEL
ENVIRONMENT...FORECAST SOUNDINGS SHOW AMPLE ELEVATED INSTABILITY AND
SHEAR FOR ROTATING THUNDERSTORMS CAPABLE OF LARGE HAIL.  COVERAGE OF
STORMS MAY CONTINUE TO INCREASE THROUGH MIDNIGHT.

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 23035.


...HART

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0086.html