National Weather Service United States Department of Commerce

Several rounds of severe thunderstorms affected the far ends of Southeast Michigan on July 18th from Lenawee, Monroe and Wayne Counties to the tip of the Thumb Region. 

...WEAK TORNADO HITS LIGHTHOUSE COUNTY PARK IN HURON COUNTY...

A NATIONAL WEATHER SERVICE STORM SURVEY CONFIRMED A WEAK
EF0 TORNADO HIT THE LIGHTHOUSE COUNTY PARK IN HURON
COUNTY YESTERDAY EVENING. THE TORNADO TOUCHED DOWN AT 1011
PM...ABOUT 1.5 MILES NORTHWEST OF THE PARK...TRACKING OVER OR CLOSE
TO LIGHTHOUSE ROAD. THE TORNADO...WITH MAXIMUM WINDS OF 80
MPH...THEN CONTINUED TO TRACK SOUTHEAST...MOVING THROUGH THE COUNTY
PARK AND EXITING OUT INTO LAKE HURON AT 1014 PM. THE TOTAL PATH
LENGTH WAS ESTIMATED AT 2 MILES...WITH A MAXIMUM WIDTH OF 75 YARDS.
NUMEROUS TREES WERE BLOWN DOWN...ONE OF WHICH FELL ONTO A CAMPER.
ROOF DAMAGE WAS ALSO OBSERVED AT ONE HOME.
 

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1139 PM EDT SUN JUL 18 2010

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

0525 PM     TSTM WND DMG     ADDISON                 41.99N 84.35W
07/18/2010                   LENAWEE            MI   LAW ENFORCEMENT

            TREES AND POWERLINES DOWN

0530 PM     TSTM WND DMG     4 NNW ADRIAN            41.94N 84.08W
07/18/2010                   LENAWEE            MI   FIRE DEPT/RESCUE

            TREES UPROOTED

0550 PM     HAIL             S TECUMSEH              42.00N 83.94W
07/18/2010  M1.75 INCH       LENAWEE            MI   TRAINED SPOTTER

0550 PM     TSTM WND DMG     TECUMSEH                42.01N 83.94W
07/18/2010                   LENAWEE            MI   LAW ENFORCEMENT

            MULTIPLE TREES AND POWERLINES DOWN

0552 PM     HAIL             TECUMSEH                42.01N 83.94W
07/18/2010  M1.75 INCH       LENAWEE            MI   TRAINED SPOTTER

0605 PM     TSTM WND DMG     4 NNE DUNDEE            42.02N 83.64W
07/18/2010                   MONROE             MI   FIRE DEPT/RESCUE

            1 FOOT DIAMETER TREE DOWN ALONG WITH POWERLINE ON
            OSTERANDER ROAD.

0650 PM     TSTM WND DMG     2 NNW GROSSE ILE        42.15N 83.16W
07/18/2010                   WAYNE              MI   TRAINED SPOTTER

            HEALTHY 10 INCH TREE DOWN

0747 PM     TSTM WND GST     3 NE MOUNT CLEMENS      42.62N 82.84W
07/18/2010  M41.00 MPH       MACOMB             MI   ASOS

            WIND GUSTS TO 41 MPH WERE RECORDED TWICE AT THE SELFRIDGE
            ANGB WEATHER STATION AT 747 PM AND 749 PM.

0752 PM     HAIL             4 ESE MOUNT CLEMENS     42.58N 82.82W
07/18/2010  M1.00 INCH       MACOMB             MI   TRAINED SPOTTER

1000 PM     TSTM WND DMG     4 SSW SEBEWAING         43.67N 83.47W
07/18/2010                   TUSCOLA            MI   LAW ENFORCEMENT

            MULTIPLE TREES DOWN

1011 PM     TSTM WND DMG     2 ESE HURON CITY        44.02N 82.80W
07/18/2010                   HURON              MI   FIRE DEPT/RESCUE

            TREE DOWN ON PROPANE TANK WITH THE TREE ON FIRE.

1025 PM     FUNNEL CLOUD     5 SSW GAGETOWN          43.60N 83.29W
07/18/2010                   TUSCOLA            MI   TRAINED SPOTTER

            A TRAINED SPOTTER REPORTED A FUNNEL CLOUD NEAR THE
            INTERSECTION OF HURDS CORNER ROAD AND CASS CITY ROAD.

1027 PM     TSTM WND DMG     3 SW GAGETOWN           43.63N 83.29W
07/18/2010                   TUSCOLA            MI   LAW ENFORCEMENT

            MULTIPLE TREES DOWN.

1035 PM     TSTM WND DMG     5 NW CASS CITY          43.66N 83.23W
07/18/2010                   TUSCOLA            MI   LAW ENFORCEMENT

            MULTIPLE TREES DOWN.