July 11, 2011 Severe Weather Event

Early on July 11, 2011, a squall line moved from Lake Michigan eastward across the southern half of Michigan. Several storm reports were called into the office, including many in the Canton to Dearborn area. The line of storms moved east at 70 mph.

NWUS53 KDTX 111918
LSRDTX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
318 PM EDT MON JUL 11 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 PM     TSTM WND DMG     FOWLERVILLE             42.66N 84.07W
07/11/2011                   LIVINGSTON         MI   TRAINED SPOTTER

            TREES AND WIRES/POLES DOWN

1225 PM     TSTM WND DMG     4 S YPSILANTI           42.19N 83.62W
07/11/2011                   WASHTENAW          MI   TRAINED SPOTTER

            DAMAGE TO ROOF OF SHED AND SMALL BRANCHES DOWN. WINDS
            ESTIMATED TO 60 MPH.

1225 PM     TSTM WND GST     ANN ARBOR               42.28N 83.73W
07/11/2011  M71.00 MPH       WASHTENAW          MI   ASOS

1229 PM     TSTM WND DMG     TECUMSEH                42.01N 83.94W
07/11/2011                   LENAWEE            MI   LAW ENFORCEMENT

            TWO TREES DOWN

1232 PM     TSTM WND GST     6 NE MILAN              42.14N 83.60W
07/11/2011  M62.00 MPH       WASHTENAW          MI   AMATEUR RADIO

1233 PM     TSTM WND DMG     CANTON                  42.31N 83.48W
07/11/2011                   WAYNE              MI   EMERGENCY MNGR

            MANY TREES AND POWER LINES DOWN INCLUDING A 35 INCH
            DIAMETER TREE.

1237 PM     TSTM WND DMG     WESTLAND                42.32N 83.38W
07/11/2011                   WAYNE              MI   PUBLIC

            LARGE TREE LIMB DOWN ON ROOF OF HOUSE

1241 PM     TSTM WND DMG     5 W DEARBORN            42.32N 83.32W
07/11/2011                   WAYNE              MI   TRAINED SPOTTER

            BRANCHES DOWN UP TO 8 INCHES IN DIAMETER

1246 PM     TSTM WND DMG     2 N CARLETON            42.09N 83.38W
07/11/2011                   MONROE             MI   TRAINED SPOTTER

            LARGE TREE BRANCH DOWN ON WILL CARLETON ROAD.

1246 PM     TSTM WND DMG     DEARBORN                42.31N 83.21W
07/11/2011                   WAYNE              MI   TRAINED SPOTTER

            LIMBS DOWN UP TO ONE FOOT DIAMETER

1248 PM     TSTM WND GST     3 NNW DEARBORN          42.36N 83.24W
07/11/2011  E60.00 MPH       WAYNE              MI   TRAINED SPOTTER

            POWER OUTAGE, NO TREE DAMAGE

1249 PM     TSTM WND DMG     3 SSW WARREN            42.46N 83.05W
07/11/2011                   MACOMB             MI   PUBLIC

            LARGE TREE AND POWERLINES DOWN.

0102 PM     TSTM WND GST     GROSSE ILE              42.13N 83.15W
07/11/2011  M39.00 MPH       WAYNE              MI   ASOS

            NEAR DETROIT RIVER AND LAKE ERIE MARINE AREAS