

745 

WWUS20 KWNS 030311

SEL6

SPC WW 030311

MIZ000-WIZ000-LSZ000-030800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 456

NWS STORM PREDICTION CENTER NORMAN OK

1015 PM CDT MON JUL 2 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN UPPER MICHIGAN

       NORTHEAST WISCONSIN

       LAKE SUPERIOR



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1015 PM

UNTIL 300 AM CDT.



HAIL TO 2 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 85

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES WEST

NORTHWEST OF IRONWOOD MICHIGAN TO 20 MILES EAST NORTHEAST OF

MARQUETTE MICHIGAN.  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 455...



DISCUSSION...SCATTERED INTENSE THUNDERSTORMS ARE INCREASING ACROSS

WESTERN UPPER MI...WHILE A MATURE BOW ECHO TRACKS ACROSS WESTERN

LAKE SUPERIOR TOWARD THE WATCH AREA.  PRESENT INDICATIONS ARE THAT

LOCALLY DAMAGING WINDS AND LARGE HAIL WILL BE POSSIBLE WITH BOTH OF

THESE CONVECTIVE REGIMES FOR SEVERAL MORE HOURS ACROSS THE WATCH

AREA.



AVIATION...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 29035.





...HART

