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WWUS20 KWNS 030634

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 461

NWS STORM PREDICTION CENTER NORMAN OK

130 AM CDT SAT AUG 3 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  FAR EASTERN KANSAS

  WEST CENTRAL THROUGH SOUTH CENTRAL MISSOURI



* EFFECTIVE THIS SATURDAY MORNING FROM 130 AM UNTIL 900 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 105 MILES NORTHWEST

OF SPRINGFIELD MISSOURI TO 40 MILES NORTHEAST OF WEST PLAINS

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 460...



DISCUSSION...ERN KS MCS...FED LARGELY BY WAA AND PERSISTENT 30 KT

INFLOW OF VERY MOIST AIR...EXPECTED TO CONTINUE E INTO FAR WRN MO

BEFORE TURNING SLIGHTLY S OF E LATER THIS MORNING. PRECIP LOADING

AND DOWNWARD MOMENTUM TRANSFER MAY YIELD A FEW DMGG WIND GUSTS.

AHEAD OF THE MCS...STRENGTHENED MOIST SWLY LOW-LVL FLOW HAS HELPED

INITIATE SCTD ...SLIGHTLY ELEVATED STORMS ALONG DIFFUSE FRONTAL ZONE

EXTENDING ROUGHLY WNW-ESE ACROSS W CNTRL THROUGH S CNTRL MO. GIVEN

DEGREE OF ELEVATED BUOYANCY LIKELY PRESENT PER 00Z SGF RAOB...AND

CURRENT SGF VWP DATA...THESE STORMS MAY PERSIST WITH A THREAT FOR

ISOLD SVR HAIL/DMGG WIND.



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 30025.





...CORFIDI

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