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013 

WWUS20 KWNS 050703

SEL7

SPC WW 050703

MIZ000-LEZ000-051200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 467

NWS STORM PREDICTION CENTER NORMAN OK

305 AM EDT THU JUL 5 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN LOWER MICHIGAN

       LAKE ERIE



EFFECTIVE THIS THURSDAY MORNING FROM 305 AM UNTIL 800 AM EDT.



HAIL TO 1 INCH 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 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES EAST OF

FLINT MICHIGAN TO 35 MILES WEST SOUTHWEST OF JACKSON MICHIGAN.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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.



DISCUSSION...SMALL MCS WITH A HISTORY OF WIND DAMAGE WILL CONTINUE

SEWD ACROSS THE WATCH AREA EARLY THIS MORNING.  THE COMBINATION OF A

WARM AND MOIST INFLOW AIR MASS AND MODERATELY STRONG DEEP...NWLY

SHEAR WILL BE SUPPORTIVE OF FORWARD-PROPAGATION/ACCELERATION WITH A

RISK FOR MAINLY DAMAGING WINDS.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

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

VECTOR 31035.





...MEAD

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