SPC Severe Thunderstorm Watch 259

WW 259 SEVERE TSTM KS MO 062050Z – 070400Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 259
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CDT SUN MAY 6 2012

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

       EASTERN KANSAS
       NORTHWEST AND WEST-CENTRAL MISSOURI

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1100 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 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES EAST
SOUTHEAST OF KANSAS CITY MISSOURI TO 70 MILES SOUTHWEST OF
EMPORIA KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 257...WW 258...

DISCUSSION...TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND
INTENSITY ACROSS THE WATCH AREA THIS AFTERNOON INTO EVENING AS COLD
FRONT CONTINUES SEWD AND INTERACTS WITH A MODERATE-STRONGLY UNSTABLE
AIR MASS.  THE STRONGEST VERTICAL SHEAR WILL REMAIN WITHIN
POST-FRONTAL ENVIRONMENT WITH MULTICELLS LIKELY BEING THE PREFERRED
STORM MODE.  LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE WITH THE
STRONGEST STORMS.

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 550. MEAN STORM
MOTION VECTOR 26020.


...MEAD

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0259.html