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WWUS20 KWNS 202010

SEL4

SPC WW 202010

IAZ000-KSZ000-MOZ000-NEZ000-210300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 524

NWS STORM PREDICTION CENTER NORMAN OK

310 PM CDT MON JUN 20 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHWEST IOWA

       MUCH OF EASTERN KANSAS

       SMALL PART OF NORTHWEST MISSOURI

       PARTS OF SOUTHEAST NEBRASKA



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 310 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHEAST OF

TEKAMAH NEBRASKA TO 45 MILES SOUTH SOUTHEAST OF WICHITA KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 523...



DISCUSSION...THUNDERSTORMS WILL ERUPT ALONG THE DRY LINE AS CAP HAS

ABOUT ERODED WITH THE ASCENT FROM THE APPROACHING STRONG TROUGH.

WITH MLCAPES AOA 2500 J/KG AND 50-60KT OF SHEAR...SUPERCELLS WILL BE

THE INITIAL MODE WHICH INCLUDES A VERY LARGE HAIL AND DAMAGING WIND

THREAT.  TORNADOS ARE ALSO POSSIBLE WITH ANY SUPERCELL. STORMS WILL

GROW UPSCALE LATER THIS AFTERNOON WITH POTENTIAL INCREASING FOR A

SIGNIFICANT DAMAGING WIND THREAT.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 24035.





...HALES

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