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WWUS20 KWNS 291805

SEL0

SPC WW 291805

KSZ000-NEZ000-300300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 240

NWS STORM PREDICTION CENTER NORMAN OK

105 PM CDT WED MAY 29 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHWEST KANSAS

  WESTERN AND CENTRAL NEBRASKA



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 105 PM

  UNTIL 1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES POSSIBLE

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

    INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH SOUTHEAST OF

HILL CITY KANSAS TO 30 MILES NORTH NORTHWEST OF BROKEN BOW

NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 239...



DISCUSSION...A COMPLEX CONVECTIVE EVOLUTION IS ANTICIPATED TODAY

OWING TO ONGOING ELEVATED STORMS AND THE PRESENCE OF MULTIPLE

BOUNDARIES.  SURFACE-BASED STORMS ARE EXPECTED TO INCREASE IN

COVERAGE THIS AFTERNOON FROM THE VICINITY OF MIGRATORY SURFACE LOW

AND ASSOCIATED SURFACE TROUGH TO ALONG AN OUTFLOW BOUNDARY LIFTING

NWD THROUGH S-CNTRL NEB.  WHILE A MIXTURE OF STORM MODES IS

ANTICIPATED...THE COMBINATION OF A MOIST...MODERATELY UNSTABLE AIR

MASS AND STRENGTHENING LOW-LEVEL SHEAR WILL SUPPORT EMBEDDED

SUPERCELLS WITH A RISK FOR TORNADOES...IN ADDITION TO LARGE HAIL AND

DAMAGING WINDS.



AVIATION...TORNADOES AND 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 23030.





...MEAD

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