

979 

WWUS20 KWNS 021251

SEL2

SPC WW 021251

WIZ000-LMZ000-021600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 822

NWS STORM PREDICTION CENTER NORMAN OK

750 AM CDT FRI SEP 2 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN AND CENTRAL WISCONSIN

       LAKE MICHIGAN



EFFECTIVE THIS FRIDAY MORNING FROM 750 AM UNTIL 1100 AM CDT.



HAIL TO 1.5 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 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 85 MILES WEST OF

OSHKOSH WISCONSIN TO 35 MILES EAST OF OSHKOSH WISCONSIN.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU2).



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 821...



DISCUSSION...SMALL FAST MOVING MCS CLUSTER WILL CONTINUE TO POSE A

THREAT FOR ISOLATED WIND DAMAGE AS IT ADVANCES THROUGH THE

MODERATELY UNSTABLE ENVIRONMENT WITH STEEP LOW-MID LEVEL LAPSE RATES

ACROSS CNTRL AND SRN WI EARLY THIS MORNING.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 26050.





...DIAL

