

169 

WWUS20 KWNS 310749

SEL9

SPC WW 310749

KSZ000-MOZ000-311300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 259

NWS STORM PREDICTION CENTER NORMAN OK

245 AM CDT FRI MAY 31 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHEAST KANSAS

  PARTS OF NORTHWEST MISSOURI



* EFFECTIVE THIS FRIDAY MORNING FROM 245 AM UNTIL 800 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  A FEW DAMAGING WIND GUSTS TO 65 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 5 MILES WEST

NORTHWEST OF SALINA KANSAS TO 55 MILES EAST SOUTHEAST OF

CHILLICOTHE MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 258...



DISCUSSION...ELEVATED THUNDERSTORM DEVELOPMENT IS ONGOING ACROSS

NORTHEAST KANSAS AND ADJACENT NORTHWEST MISSOURI ATTM...WITHIN AN

ENVIRONMENT FEATURING VERY STEEP MID-LEVEL LAPSE RATES AND THUS

ELEVATED CAPE VALUES IN EXCESS OF 3000 J/KG.  GIVEN THE PRESENCE OF

50-PLUS KT WSWLY MID-LEVEL FLOW...EXPECT STORMS DEVELOPING IN

RESPONSE TO STRONG QG FORCING TO BECOME SUPERCELLULAR...CAPABLE OF

PRODUCING LARGE HAIL AND POSSIBLY LOCALLY DAMAGING WINDS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 55

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 24040.





...GOSS

