

562 

WWUS20 KWNS 020723

SEL6

SPC WW 020723

WIZ000-LSZ000-021500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 716

NWS STORM PREDICTION CENTER NORMAN OK

220 AM CDT TUE AUG 2 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL WISCONSIN

       LAKE SUPERIOR



EFFECTIVE THIS TUESDAY MORNING FROM 220 AM UNTIL 1000 AM CDT.



HAIL TO 1.5 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 SOUTH

SOUTHWEST OF DULUTH MINNESOTA TO 55 MILES EAST OF WAUSAU

WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 714...WW 715...



DISCUSSION...COMPLEX MCS NOW S OF DLH EXPECTED TO MOVE GENERALLY ESE

TO SE INTO WI LATER THIS MORNING...SUPPORTED BY SUBSTANTIAL

WAA/MOISTURE TRANSPORT ASSOCIATED WITH 40 KT WSWLY LLJ AND HEIGHT

FALLS ON SRN FRINGE OF CANADIAN UPR IMPULSE.  WHILE THE NEAR-SFC

LAYER LIKELY WILL REMAIN SOMEWHAT STABILIZED FROM EARLIER

CONVECTION...STRENGTH OF STORMS FORMING ABOVE THIS LAYER...STRENGTH

OF WIND FIELD...AND PW AROUND 2 INCHES SUGGEST POTENTIAL FOR BOWING

STRUCTURES WITH DMGG WIND AND POSSIBLY MARGINALLY SVR HAIL.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 31035.





...CORFIDI

