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952 

WWUS20 KWNS 021717

SEL2

SPC WW 021717

MIZ000-LEZ000-LHZ000-LMZ000-022300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 652

NWS STORM PREDICTION CENTER NORMAN OK

1220 PM CDT WED JUL 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       LARGE PART OF CENTRAL AND NORTHERN LOWER MICHIGAN

       LAKE ERIE

       LAKE HURON

       LAKE MICHIGAN



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 1220 PM UNTIL

600 PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHEAST OF

PELLSTON MICHIGAN TO 35 MILES EAST SOUTHEAST OF FLINT MICHIGAN.

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 651...



DISCUSSION...BOW ECHOS HAVE DEVELOPED ACROSS WI AND ARE MOVING

RAPIDLY  EWD AHEAD OF VIGOROUS UPPER TROUGH.  MOISTURE/INSTABILITY

IS INCREASING RAPIDLY ACROSS LOWER MI AHEAD OF STORMS.  DAMAGING

WINDS WILL BE THE PRIMARY THREAT WITH THE FAST MOVING BOW ECHOS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

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

MOTION VECTOR 27045.





...HALES

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