SEL6
SPC WW 222051
MIZ000-LEZ000-230200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 516
NWS STORM PREDICTION CENTER NORMAN OK
455 PM EDT THU JUL 22 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN LOWER MICHIGAN
LAKE ERIE
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 455 PM UNTIL
1000 PM EDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 25 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST SOUTHWEST OF
JACKSON MICHIGAN TO 20 MILES SOUTHEAST OF DETROIT MICHIGAN. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
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 514...
DISCUSSION...A SUPERCELL HAS INTENSIFIED AND IS TRACKING
EAST-SOUTHEASTWARD ALONG THE SURFACE WARM FRONT ACROSS SOUTHERN
LOWER MI. ENHANCED LOW LEVEL SHEAR AND CONVERGENCE ALONG THE
BOUNDARY WILL MAINTAIN A RISK OF ISOLATED TORNADOES...ALONG WITH
DAMAGING WINDS AND HAIL FOR ANOTHER SEVERAL HOURS.
AVIATION...TORNADOES AND 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 27030.
...HART
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