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WWUS20 KWNS 222024

SEL4

SPC WW 222024

WIZ000-LMZ000-230200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 514

NWS STORM PREDICTION CENTER NORMAN OK

325 PM CDT THU JUL 22 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN WISCONSIN

       LAKE MICHIGAN



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 325 PM UNTIL

900 PM 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 40 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTH SOUTHWEST OF

LONEROCK WISCONSIN TO 35 MILES EAST NORTHEAST OF RACINE

WISCONSIN.  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.



DISCUSSION...SCATTERED THUNDERSTORMS ARE INTENSIFYING ALONG A

BOUNDARY OVER SOUTHERN WI...WHILE OTHER MORE DISCRETE STORMS FORM

OVER NORTHEAST IA.  STRONG LOW LEVEL VERTICAL SHEAR IS PRESENT

ACROSS THE WATCH AREA...WITH SHEAR PROFILES FAVORABLE FOR SUPERCELLS

AND POSSIBLE TORNADOES.  DAMAGING WINDS AND HAIL WILL ALSO BE

POSSIBLE IN STRONGER STORMS.



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 28030.





...HART

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