

000 

WWUS20 KWNS 290812

SEL2

SPC WW 290812

MNZ000-WIZ000-LSZ000-291300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 772

NWS STORM PREDICTION CENTER NORMAN OK

315 AM CDT TUE JUL 29 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST MINNESOTA

       NORTHWEST WISCONSIN

       LAKE SUPERIOR



EFFECTIVE THIS TUESDAY MORNING FROM 315 AM UNTIL 800 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 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST

SOUTHWEST OF DULUTH MINNESOTA TO 45 MILES SOUTHEAST OF KENNEDY

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 769...WW 771...



DISCUSSION...MCS CONTINUES TO EVOLVE OVER NRN MN EARLY THIS MORNING

WITH A HISTORY OF STRONG/ISOLATED SEVERE WIND GUSTS.  DESPITE DEEPER

STABLE BOUNDARY LAYER NEAR LAKE SUPERIOR WHICH MAY WEAKEN SEVERE

THREAT EVENTUALLY...WIND DAMAGE POTENTIAL IS EXPECTED TO PERSIST

INTO NERN MN/NWRN WI BEFORE DIMINISHING.



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 400. MEAN STORM

MOTION VECTOR 27040.





...EVANS

