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676 

WWUS20 KWNS 111942

SEL3

SPC WW 111942

KSZ000-OKZ000-TXZ000-120300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 143

NWS STORM PREDICTION CENTER NORMAN OK

240 PM CDT SUN MAY 11 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  WESTERN AND CENTRAL KANSAS

  NORTHWEST OKLAHOMA INCLUDING THE EASTERN PANHANDLE

  NORTHEAST TEXAS PANHANDLE



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 240 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  A COUPLE TORNADOES POSSIBLE

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5

    INCHES IN DIAMETER LIKELY

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF SALINA

KANSAS TO 15 MILES SOUTH SOUTHEAST OF GAGE OKLAHOMA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU3).



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 141...WW 142...



DISCUSSION...RAPID TSTM DEVELOPMENT IS UNDERWAY ALONG THE DRYLINE

WITHIN A STEEP LAPSE RATE AND MODERATELY UNSTABLE ENVIRONMENT. A

CONTINUED STRENGTHENING OF DEEP-LAYER FLOW FIELDS INTO THIS EVENING

WILL SUPPORT SUPERCELL STRUCTURES CAPABLE OF VERY LARGE HAIL

INITIALLY. THE THREAT FOR A COUPLE OF TORNADOES MAY INCREASE THIS

EVENING WITH ANY STORMS THAT CAN REMAIN DISCRETE OWING TO INCREASING

AMOUNTS OF LOW-LEVEL SHEAR AND MOISTURE.



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

550. MEAN STORM MOTION VECTOR 24030.





...MEAD

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