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

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.