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WWUS20 KWNS 040831

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 725

NWS STORM PREDICTION CENTER NORMAN OK

330 AM CDT THU AUG 4 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN AND CENTRAL MISSOURI



EFFECTIVE THIS THURSDAY MORNING FROM 330 AM UNTIL 1000 AM CDT.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES EAST

NORTHEAST OF KNOB NOSTER MISSOURI TO 20 MILES SOUTHEAST OF

SPRINGFIELD MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 723...WW 724...



DISCUSSION...SETUP APPEARS SUPPORTIVE OF EWD PROPAGATION OF FAR WRN

MO MCS AS CONSOLIDATED OUTFLOW FROM EARLIER KS CONVECTION MOVES

MAINLY E OR ENELY AND ENCOUNTERS SHALLOW LAYER OF VERY MOIST ELY

FLOW OVER WRN/CNTRL MO.  SPORADIC WET MICROBURSTS MAY OCCUR DUE TO

HEAVY PRECIP LOADING...GIVEN COLLOCATION OF HIGH PWS WITH STEEP

LAPSE RATES ABOVE THE SKIN LAYER.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION

VECTOR 27030.





...CORFIDI

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