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988 

WWUS20 KWNS 191852

SEL1

SPC WW 191852

IAZ000-KSZ000-MOZ000-NEZ000-200300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 181

NWS STORM PREDICTION CENTER NORMAN OK

150 PM CDT SUN MAY 19 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  SOUTHWEST IOWA

  CENTRAL AND EASTERN KANSAS

  WEST CENTRAL AND NORTHWEST MISSOURI

  SOUTHEAST NEBRASKA



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES LIKELY WITH A FEW INTENSE TORNADOES POSSIBLE

  NUMEROUS LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL

    EVENTS TO 3 INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS

    TO 80 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 115 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHWEST OF

FALLS CITY NEBRASKA TO 45 MILES SOUTH OF WICHITA KANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



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 179...WW 180...



DISCUSSION...RAPID BOUNDARY LAYER DESTABILIZATION IS UNDERWAY ACROSS

CENTRAL AND EASTERN KANSAS...WHERE FORCING FOR UPWARD VERTICAL

MOTION IN THE EXIT REGION OF A 500 MB JET STREAK WILL AID STORM

INITIATION DURING THE NEXT FEW HOURS.  DISCRETE SUPERCELLS APPEAR

LIKELY... ESPECIALLY INITIALLY...BEFORE CONVECTION BEGINS TO

CONSOLIDATE... WITH THE UPSCALE GROWTH OF A SEVERE MESOSCALE

CONVECTIVE SYSTEM EXPECTED BY EARLY EVENING.  STORMS WILL SPREAD

INTO ADJACENT PORTIONS OF SOUTHEAST NEBRASKA...SOUTHWEST IOWA AND

WESTERN MISSOURI.  STRONGEST STORMS WILL BE CAPABLE OF PRODUCING

VERY LARGE HAIL...A FEW TORNADOES...SOME POSSIBLY STRONG...BEFORE

DAMAGING WINDS BECOME A MORE PROMINENT RISK THIS EVENING.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...KERR

