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674 

WWUS20 KWNS 072213

SEL5

SPC WW 072213

KSZ000-NEZ000-080500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 455

NWS STORM PREDICTION CENTER NORMAN OK

415 PM MDT THU AUG 7 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WESTERN KANSAS

  SOUTHWEST NEBRASKA



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 415 PM UNTIL

  1100 PM MDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES EAST

NORTHEAST OF IMPERIAL NEBRASKA TO 70 MILES SOUTH SOUTHWEST OF

GARDEN CITY KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 454...



DISCUSSION...A QUASI-LINEAR COMPLEX WILL CONTINUE TO MOVE GENERALLY

EASTWARD AND POSE A LOCALLY DAMAGING WIND/SOME HAIL RISK ACROSS

NORTHWEST KS AND SOUTHWEST NEB THROUGH EARLY/MID-EVENING. OTHER

STRONG/SEVERE STORMS ARE LIKELY TO INCREASE AND SPREAD EASTWARD THIS

EVENING FROM SOUTHEAST CO INTO SOUTHWEST KS. OVERALL SCENARIO WILL

BE SUPPORTED BY MODERATE VERTICAL SHEAR/INSTABILITY AND WEAK

LOW-LEVEL UPSLOPE FLOW.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 27030.





...GUYER

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