

653 

WWUS20 KWNS 132015

SEL3

SPC WW 132015

KSZ000-140300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 663

NWS STORM PREDICTION CENTER NORMAN OK

315 PM CDT SAT OCT 13 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL KANSAS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 315 PM UNTIL

1000 PM CDT.



HAIL TO 2 INCHES 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 65

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH

NORTHEAST OF CONCORDIA KANSAS TO 40 MILES EAST SOUTHEAST OF

MEDICINE LODGE KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 661...WW 662...



DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP SOON IN

THE AREA NEAR PRATT...WHERE VISIBLE SATELLITE IMAGERY SHOWS

DEEPENING CUMULUS ALONG THE SURFACE COLD FRONT.  CONTINUED SURFACE

HEATING IN ADVANCE OF THE FRONT...AND THE APPROACH OF A STRONG

MIDLEVEL TROUGH FROM WRN KS...WILL PROMOTE ADDITIONAL THUNDERSTORM

DEVELOPMENT THROUGH THE AFTERNOON/EVENING ACROSS CENTRAL KS.  LOCAL

VWP/PROFILER OBSERVATIONS SHOW THAT HODOGRAPHS ARE BECOMING MORE

UNIDIRECTIONAL WITH TIME...THOUGH THERE MIGHT BE A SMALL WINDOW OF

OPPORTUNITY FOR A TORNADO IN S CENTRAL KS.  OTHERWISE...CLUSTERS AND

LINE SEGMENTS SHOULD BE THE PRIMARY CONVECTIVE MODE...WITH THE RISK

FOR LARGE HAIL AND DAMAGING WINDS.



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 450. MEAN STORM

MOTION VECTOR 24040.





...THOMPSON

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