

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
643 PM EDT SAT AUG 20 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0150 PM HAIL 2 S CLIO 43.15N 83.73W
08/20/2011 E0.88 INCH GENESEE MI TRAINED SPOTTER
0206 PM HAIL 3 E MOUNT MORRIS 43.12N 83.63W
08/20/2011 M0.75 INCH GENESEE MI CO-OP OBSERVER
0212 PM HAIL 5 ESE CLIO 43.16N 83.63W
08/20/2011 E0.75 INCH GENESEE MI TRAINED SPOTTER
0218 PM HAIL 5 WNW OTISVILLE 43.18N 83.62W
08/20/2011 M0.75 INCH GENESEE MI TRAINED SPOTTER
0226 PM HAIL 5 W COLUMBIAVILLE 43.17N 83.50W
08/20/2011 E0.75 INCH GENESEE MI TRAINED SPOTTER
0226 PM TSTM WND DMG OTISVILLE 43.17N 83.52W
08/20/2011 GENESEE MI 911 CALL CENTER
CENTRAL DISPATCH REPORTS NUMEROUS TREES DOWN ACROSS
FOREST TOWNSHIP
0255 PM TSTM WND GST 1 N FREELAND 43.54N 84.12W
08/20/2011 E60.00 MPH SAGINAW MI TRAINED SPOTTER
0300 PM TORNADO 1 NNW CHESANING 43.20N 84.13W
08/20/2011 SAGINAW MI NWS STORM SURVEY
A STORM SURVEY CONDUCTED BY THE NATIONAL WEATHER SERVICE
CONFIRMS AN EF0 TORNADO OCCURRED NEAR CHESANING ON
SATURDAY AUGUST 20, 2011. THE TRACK BEGAN NEAR THE
INTERSECTION OF MCKEIGHAN AND BALDWIN RD AT APPROXIMATELY
300PM. THE TORNADO THEN TRACKED EAST AND ENDED NEAR THE
INTERSECTION OF CHESANING AND STUART RD. TRACK LENGTH WAS
APPROXIMATELY 3 MILES. THE TORNADO WAS 100 YARDS WIDE
WITH WIND SPEEDS UP TO 80 MPH. DAMAGE WAS MAINLY LIMITED
TO LARGE TREES AND AN OVERTURNED TRAILER.
0303 PM TSTM WND DMG CHESANING 43.18N 84.12W
08/20/2011 SAGINAW MI TRAINED SPOTTER
3 INCH DIAMETER TREE BRANCHES DOWN
0328 PM TSTM WND DMG 3 WSW OTISVILLE 43.14N 83.58W
08/20/2011 GENESEE MI AMATEUR RADIO
POWER LINE SNAPPED IN HALF
0413 PM TSTM WND DMG PINCKNEY 42.45N 83.95W
08/20/2011 LIVINGSTON MI 911 CALL CENTER
CENTRAL DISPATCH REPORTED TREES DOWN
0418 PM TSTM WND DMG HAMBURG 42.45N 83.80W
08/20/2011 LIVINGSTON MI 911 CALL CENTER
TREES AND WIRES DOWN
0425 PM TSTM WND DMG 2 W SOUTH LYON 42.46N 83.70W
08/20/2011 LIVINGSTON MI 911 CALL CENTER
WIRES DOWN IN GREEN OAK TOWNSHIP
0450 PM TSTM WND DMG SOUTHFIELD 42.48N 83.26W
08/20/2011 OAKLAND MI TRAINED SPOTTER
DOZENS OF LARGE BRANCHES AND TREES DOWN
0450 PM TSTM WND GST 4 NNW SOUTHFIELD 42.53N 83.29W
08/20/2011 E60.00 MPH OAKLAND MI TRAINED SPOTTER
0450 PM TSTM WND DMG 2 SSE WEST BLOOMFIELD 42.54N 83.36W
08/20/2011 OAKLAND MI TRAINED SPOTTER
MINOR STRUCTURAL DAMAGE TO GREENHOUSES
0452 PM TSTM WND DMG 3 SE WEST BLOOMFIELD 42.54N 83.34W
08/20/2011 OAKLAND MI AMATEUR RADIO
3 TO 4 INCH DIAMETER TREES ON HOUSE
0454 PM TSTM WND DMG 4 ENE SOUTHFIELD 42.49N 83.18W
08/20/2011 OAKLAND MI AMATEUR RADIO
WIRES REPORTED DOWN
0458 PM TSTM WND DMG 3 S TROY 42.53N 83.14W
08/20/2011 OAKLAND MI TRAINED SPOTTER
5 INCH DIAMETER TREE LIMBS DOWN
0510 PM TSTM WND GST CLINTION TOWNSHIP 42.59N 82.92W
08/20/2011 E65.00 MPH MACOMB MI TRAINED SPOTTER
0512 PM MARINE TSTM WIND 1 NNE PORT HURON 43.01N 82.42W
08/20/2011 M39.00 MPH LHZ443 MI BUOY
0515 PM TSTM WND GST ROSEVILLE 42.51N 82.94W
08/20/2011 M65.00 MPH MACOMB MI TRAINED SPOTTER