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WWUS20 KWNS 171852

SEL7

SPC WW 171852

KSZ000-180300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 117

NWS STORM PREDICTION CENTER NORMAN OK

150 PM CDT WED APR 17 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EASTERN KANSAS



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 150 PM

  UNTIL 1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES WITH A FEW INTENSE TORNADOES POSSIBLE

  SEVERAL VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH NORTHEAST OF

LEAVENWORTH KANSAS TO 60 MILES SOUTHWEST OF CHANUTE KANSAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 113...WW 114...WW

115...WW 116...



DISCUSSION...SEVERE THUNDERSTORMS ARE EXPECTED TO RAPIDLY FORM NEAR

A DEVELOPING SURFACE LOW...AND ALONG AND AHEAD OF A TRAILING COLD

FRONT...LATE THIS AFTERNOON.  THIS LIKELY WILL INCLUDE A FEW

SUPERCELLS CAPABLE OR PRODUCING VERY LARGE HAIL AND TORNADOES.

ACTIVITY MAY INCREASE IN COVERAGE AND CONSOLIDATE INTO AN EVOLVING

SQUALL LINE BY THIS EVENING...BEFORE ADVANCING EASTWARD INTO THE

MIDDLE MISSISSIPPI VALLEY.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 23035.





...KERR

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