

104 

WWUS20 KWNS 062049

SEL9

SPC WW 062049

KSZ000-MOZ000-070400-



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

