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000 

WWUS20 KWNS 102135

SEL8

SPC WW 102135

KSZ000-MOZ000-OKZ000-110500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 378

NWS STORM PREDICTION CENTER NORMAN OK

435 PM CDT SUN JUN 10 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST KANSAS

       SOUTHWEST MISSOURI

       NORTHEAST OKLAHOMA



EFFECTIVE THIS SUNDAY AFTERNOON FROM 435 PM UNTIL MIDNIGHT CDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTHWEST OF

CHANUTE KANSAS TO 30 MILES NORTHEAST OF SPRINGFIELD MISSOURI.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 376...WW 377...



DISCUSSION...TSTMS/SUPERCELLS EXPECTED TO DEVELOP/PERSIST IN LOW

LEVEL INSTABILITY/CONVERGENCE ZONE ALONG AND JUST E OF WWD-MOVING

COMPOSITE OUTFLOW BOUNDARY IN SW MO/NW AR.  PROFILER AND VWP DATA

SUGGEST THAT DEEP WSWLY SHEAR IS SUFFICIENT FOR SUSTAINED

SUPERCELLS...WITH FLOW APPARENTLY BEING ENHANCED BY JET STREAK

ASSOCIATED WITH ERN MO MCV.  GIVEN MOIST/SLOWLY HEATING BOUNDARY

LAYER E OF BOUNDARY...SETUP MAY SUPPORT TORNADOES IN ADDITION TO

LARGE HAIL/HIGH WIND...ESPECIALLY IN A NARROW CORRIDOR NEAR THE

SLOWLY-MOVING BOUNDARY.



AVIATION...TORNADOES AND 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

500. MEAN STORM MOTION VECTOR 26025.





...CORFIDI

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