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012 

WWUS20 KWNS 150043

SEL3

SPC WW 150043

KSZ000-MOZ000-150700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 393

NWS STORM PREDICTION CENTER NORMAN OK

740 PM CDT THU JUN 14 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN KANSAS

       EXTREME NORTHWEST MISSOURI



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 740 PM

UNTIL 200 AM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST OF

HUTCHINSON KANSAS TO 10 MILES SOUTH OF SAINT JOSEPH MISSOURI.

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 389...WW 390...WW

391...WW 392...



DISCUSSION...A COMPLEX LINE OF THUNDERSTORMS FROM EXTREME SWRN IA

INTO WRN KS CONTAINS A NUMBER OF LEWPS/SMALL SCALE BOW ECHOES

ACCORDING TO RADAR.  THE LINE IS EXPECTED TO MOVE SEWD THIS EVENING

INTO THE LOW LEVEL MOISTURE AND INSTABILITY AXIS OVER KS...ENHANCED

BY A STRENGTHENING LOW LEVEL JET AND ASSOCIATED STRONG CONVERGENCE

AND MASS FLUX INTO THE STORMS.  MODEL GUIDANCE SUGGESTS SOME

SECTIONS OF THE LINE MAY ACCELERATE SEWD TONIGHT WITH POTENTIAL FOR

A MORE WIDESPREAD DAMAGING WIND THREAT DEVELOPING IN ASSOCIATION

WITH A FORWARD PROPAGATING QLCS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 27025.





...WEISS

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