

369 

WWUS20 KWNS 280913

SEL0

SPC WW 280913

KSZ000-MOZ000-281600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 390

NWS STORM PREDICTION CENTER NORMAN OK

415 AM CDT SAT MAY 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTH CENTRAL AND SOUTHEAST KANSAS

       PARTS OF SOUTHWEST AND CENTRAL MISSOURI



EFFECTIVE THIS SATURDAY MORNING FROM 415 AM UNTIL 1100 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 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST OF

HUTCHINSON KANSAS TO 25 MILES NORTH OF FORT LEONARD WOOD

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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...BAND OF ELEVATED STORMS WILL CONTINUE TO DEVELOP AND

SPREAD EWD FROM KS INTO WRN MO THROUGH THE MORNING IN ASSOCIATION

WITH LOW-LEVEL WAA.  MUCAPE OF 1000-2000 J/KG AND EFFECTIVE BULK

SHEAR OF 40-50 KT WILL SUPPORT ELEVATED SUPERCELLS CAPABLE OF

PRODUCING LARGE HAIL.  ISOLATED DAMAGING GUSTS WILL ALSO BE POSSIBLE

GIVEN LARGE DCAPE AND ONLY A SHALLOW STABLE BOUNDARY LAYER.



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 27025.





...THOMPSON

