

650 

WWUS20 KWNS 282251

SEL3

SPC WW 282251

KSZ000-MOZ000-290500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 113

NWS STORM PREDICTION CENTER NORMAN OK

550 PM CDT WED MAR 28 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST KANSAS

       WEST CENTRAL MISSOURI



EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 550 PM UNTIL MIDNIGHT 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 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES WEST OF

CONCORDIA KANSAS TO 40 MILES EAST SOUTHEAST OF OLATHE KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 112...



DISCUSSION...THUNDERSTORM DEVELOPMENT IS UNDERWAY ALONG A SURFACE

FRONT IN NE KS...WHERE THE INSTABILITY AXIS INTERSECTS THE BOUNDARY.

 MLCAPE NEAR 2500 J/KG AND EFFECTIVE BULK SHEAR OF 30-45 KT WILL

SUPPORT SOME SLOW-MOVING SUPERCELLS...THOUGH WEAKER FLOW ALOFT MAY

TEND TO LIMIT STORM LONGEVITY.  LIKEWISE...LOW-LEVEL SHEAR IS NOT

PARTICULARLY STRONG...THUS LARGE HAIL SHOULD BE THE PRIMARY SEVERE

THREAT FOR THE NEXT FEW HOURS.  LATER THIS EVENING...A GRADUAL

INCREASE IN STORM COVERAGE WITH WAA OVER THE BOUNDARY COULD PROMOTE

COLD POOL DEVELOPMENT AND SOME RISK FOR THE FORMATION OF A SMALL MCS

WITH AN ATTENDANT RISK FOR DAMAGING WINDS.



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 28015.





...THOMPSON

