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A warm front approaching from the south served as the focus for convection during the overnight hours.  Wind damage was the primary severe weather threat, with 1 to 3 inches of heavy rain producing flooding for areas along and north of Interstate 69. A map and list of the severe weather reports are listed below.

 

 

 

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
102 AM EDT WED JUN 22 2011

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

0827 PM     TSTM WND DMG     5 NW TEMPERANCE         41.82N 83.63W
06/21/2011                   MONROE             MI   TRAINED SPOTTER

            2 FOOT DIAMETER TREE DOWN ACROSS THE ROAD NEAR THE
            INTERSECTION OF RAUCH AND SECOR ROADS.

0842 PM     TSTM WND DMG     4 NW ONSTED             42.05N 84.25W
06/21/2011                   LENAWEE            MI   LAW ENFORCEMENT

            SEVERAL POWERLINES DOWN.

0850 PM     TSTM WND DMG     FREELAND                43.52N 84.12W
06/21/2011                   SAGINAW            MI   911 CALL CENTER

            SEVERAL TREES BLOW DOWN.

0920 PM     TSTM WND DMG     FREELAND                43.52N 84.12W
06/21/2011                   SAGINAW            MI   TRAINED SPOTTER

            SEVERAL TREES DOWN IN THE NORTHERN PART OF TOWN.

0940 PM     TSTM WND GST     5 SE AUBURN             43.55N 84.00W
06/21/2011  E65.00 MPH       BAY                MI   AMATEUR RADIO

            MULTIPLE POWER LINES DOWN.

0943 PM     TSTM WND GST     OAKLEY                  43.14N 84.17W
06/21/2011  E80.00 MPH       SAGINAW            MI   AMATEUR RADIO

            COUNTY DISPATCH ALSO REPORTED MULTIPLE TREES DOWN
            THROUGHOUT SAGINAW COUNTY.

0953 PM     TSTM WND DMG     ESSEXVILLE              43.61N 83.84W
06/21/2011                   BAY                MI   911 CALL CENTER

            SEVERAL TREES DOWN.

1000 PM     TSTM WND DMG     4 E PERRY               42.83N 84.15W
06/21/2011                   SHIAWASSEE         MI   EMERGENCY MNGR

            A LARGE 20X30 FOOT SHED FLIPPED OVER, 2 MAPLE TREES 3-4
            FEET IN DIAMETER BLOWN DOWN, AND VINYL SIDING BLOWN OFF A
            HOME.

1020 PM     TSTM WND DMG     2 S SAGINAW             43.39N 83.95W
06/21/2011                   SAGINAW            MI   AMATEUR RADIO

            A LARGE TREE DOWN APPROXIMATELY 10 INCHES IN DIAMETER

1040 PM     MARINE TSTM WIND 12 NNW BAY PARK         43.81N 83.72W
06/21/2011  M52.00 MPH       LHZ422             MI   C-MAN STATION

            OBSERVATION FROM SAGINAW BAY LIGHT.

1045 PM     FLASH FLOOD      FREELAND                43.52N 84.12W
06/21/2011                   SAGINAW            MI   911 CALL CENTER

            8200 BLOCK OF GOLDFINCH ROAD IS CLOSED DUE TO STORM
            DRAINS BACKING UP AND 2 FEET OF WATER ON THE ROADS.

1050 PM     TSTM WND DMG     5 N ALMONT              42.99N 83.05W
06/21/2011                   LAPEER             MI   911 CALL CENTER

            TREE DOWN AT RIDER AND BOWMAN ROADS.

1053 PM     TSTM WND DMG     4 SSE COLUMBIAVILLE     43.11N 83.37W
06/21/2011                   LAPEER             MI   911 CALL CENTER

            POWERLINE DOWN.

1100 PM     FLASH FLOOD      3 SW FLINT              42.99N 83.75W
06/21/2011                   GENESEE            MI   911 CALL CENTER

            A COUPLE FEET OF WATER COVERING NORTHBOUND AND SOUTHBOUND
            I-75 BETWEEN CORUNNA ROAD AND I-69

1100 PM     MARINE TSTM WIND 8 ESE AU GRES           44.02N 83.54W
06/21/2011  M47.00 MPH       LHZ421             MI   C-MAN STATION

            OBSERVATION FROM GRAVELLY SHOALS LIGHT.

1110 PM     MARINE TSTM WIND 8 ESE AU GRES           44.02N 83.54W
06/21/2011  M49.00 MPH       LHZ421             MI   C-MAN STATION

            OBSERVATION FROM GRAVELLY SHOALS LIGHT.

1115 PM     FLASH FLOOD      EMMETT                  42.99N 82.77W
06/21/2011                   ST. CLAIR          MI   911 CALL CENTER

            FLOODING OVER THE ROADWAYS.

1115 PM     TSTM WND DMG     FORT GRATIOT            43.01N 82.43W
06/21/2011                   ST. CLAIR          MI   911 CALL CENTER

            POWERLINES DOWN AND POWER OUTAGES IN THE AREA.

1116 PM     FLASH FLOOD      FREELAND                43.52N 84.12W
06/21/2011                   SAGINAW            MI   TRAINED SPOTTER

            THE INTERSECTION OF CARTER AND SARLE ROADS IS IMPASSABLE
            WITH WATER UP TO THE BOTTOM OF DOORS. ROADWAY DITCHES
            NEARBY ARE CLOSE TO BEING FULL.

1120 PM     TSTM WND DMG     3 E NEW BALTIMORE       42.69N 82.67W
06/21/2011                   ST. CLAIR          MI   911 CALL CENTER

            POWERLINES DOWN WITH POWER OUTAGES IN THE AREA.

1120 PM     TSTM WND DMG     ALGONAC                 42.62N 82.53W
06/21/2011                   ST. CLAIR          MI   911 CALL CENTER

            POWERLINES DOWN.

1130 PM     FLASH FLOOD      1 ESE RUBY              43.04N 82.59W
06/21/2011                   ST. CLAIR          MI   911 CALL CENTER

            FLOODING OVER THE ROADWAYS.