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147 

WWUS20 KWNS 030018

SEL0

SPC WW 030018

ARZ000-KSZ000-MOZ000-OKZ000-030700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 460

NWS STORM PREDICTION CENTER NORMAN OK

720 PM CDT FRI AUG 2 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  FAR NORTHWEST ARKANSAS

  CENTRAL AND EASTERN KANSAS

  SOUTHWEST MISSOURI

  NORTHERN OKLAHOMA



* EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 720 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  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 SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES NORTH

NORTHWEST OF MEDICINE LODGE KANSAS TO 20 MILES EAST OF JOPLIN

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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.



&&



DISCUSSION...HIGH-BASED STORMS ARE ALREADY DEVELOPING WITHIN A

DEEPLY MIXED ENVIRONMENT ACROSS SOUTHWEST/SOUTH-CENTRAL KS...WITH

THESE LIKELY TO CONTINUE TO INCREASE IN COVERAGE/INTENSITY INTO

ADDITIONAL PORTIONS OF CENTRAL KS THIS EVENING...WHILE MAINLY

ELEVATED STORMS OTHERWISE EXPAND/MOVE EAST-SOUTHEASTWARD ACROSS

EASTERN KS/WESTERN MO/NORTHEAST OK. INITIAL RISK OF SEVERE HAIL WILL

EXIST THIS EVENING...WITH DAMAGING WINDS POTENTIALLY BECOMING MORE

OF A CONCERN BY LATE EVENING INTO THE OVERNIGHT AS POTENTIAL MCS

DEVELOPMENT OCCURS. HEAVY RAINFALL WILL ALSO BE A CONCERN INTO THE

OVERNIGHT.



AVIATION...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 550. MEAN STORM

MOTION VECTOR 27030.





...GUYER

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