

000 

WWUS20 KWNS 080343

SEL4

SPC WW 080343

MIZ000-LHZ000-LMZ000-LSZ000-081100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 364

NWS STORM PREDICTION CENTER NORMAN OK

1145 PM EDT THU JUN 7 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN LOWER AND EASTERN UPPER MICHIGAN

       LAKE HURON

       LAKE MICHIGAN

       LAKE SUPERIOR



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1145 PM

UNTIL 700 AM EDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE

MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH NORTHEAST OF

PELLSTON MICHIGAN TO 40 MILES WEST SOUTHWEST OF HOUGHTON LAKE

MICHIGAN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 360...WW 361...WW

362...WW 363...



DISCUSSION...SCTD TSTMS/POSSIBLE SUPERCELLS WITH AN ATTENDANT THREAT

FOR HIGH WIND/MARGINALLY SVR HAIL AND ISOLATED TORNADOES EXPECTED TO

DEVELOP OVER NRN MI THROUGH EARLY FRIDAY AS VERY STRONG MID/UPR

LEVEL SPEED MAX AND AXIS OF WEAK LOW LEVEL CONVERGENCE SWEEP ENE

ACROSS REGION.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.

MEAN STORM MOTION VECTOR 24055.





...CORFIDI

