Overview
Multiple rounds of strong to severe thunderstorms impacted southeast Michigan on the afternoon of September 14, 2021 as a cold front tracked across the region. The initial round of storms formed ahead of the front in a region of ample instability, moisture, and vertical wind shear, and prompted the issuance of a severe thunderstorm watch and several severe thunderstorm warnings. Following a brief lull in activity, another round of strong to severe storms tracked across southeast Michigan between approximately 6 and 10 PM EDT.
Photos
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			 Temperance Credit: Mike Karmol N8KUF  | 
			
			 Temperance Credit: Mike Karmol N8KUF  | 
		
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			 Howell Credit: Jackie Renae  | 
			
			 Howell Credit: Jackie Renae  | 
		
Radar
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			 Click to Enlarge Radar loop courtesy of Iowa Environmental Mesonet (IEM)  | 
		
Storm Reports
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			 Map of Local Storm Reports  | 
		
Severe Weather Local Storm Reports:
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
133 PM EDT WED SEP 15 2021
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..
0248 PM     TSTM WND DMG     HUDSON                  41.86N 84.35W
09/14/2021                   LENAWEE            MI   911 CALL CENTER  
            LENAWEE COUNTY CENTRAL DISPATCH REPORTED 
            MUTIPLE TREES AND POWER LINES DOWN IN AND 
            AROUND HUDSON. 
0406 PM     TSTM WND DMG     4 WSW BRIGHTON          42.50N 83.86W
09/14/2021                   LIVINGSTON         MI   PUBLIC           
            PUBLIC REPORTS TREE DOWN BLOCKING ROAD ON 
            CHILSON RD NEAR CHILSON CREEK. 
0412 PM     TSTM WND GST     BERKLEY                 42.50N 83.19W
09/14/2021  M60 MPH          OAKLAND            MI   TRAINED SPOTTER  
            SPOTTER REPORTED MEASURED 60 MPH WIND GUST 
            AND PENNY SIZED HAIL. 
0417 PM     HAIL             1 NNE BIRCH RUN         43.26N 83.78W
09/14/2021  M1.00 INCH       SAGINAW            MI   TRAINED SPOTTER  
            QUARTER SIZED HAIL REPORTED NEAR DIXIE HWY 
            AND CANADA RD. 
0424 PM     HAIL             4 S MILFORD             42.52N 83.62W
09/14/2021  M0.88 INCH       OAKLAND            MI   PUBLIC           
            NICKEL SIZED HAIL REPORTED NEAR PONTIAC 
            TRAIL AND MILFORD RD. 
0425 PM     TSTM WND DMG     6 W MOUNT CLEMENS       42.59N 82.99W
09/14/2021                   MACOMB             MI   911 CALL CENTER  
            MACOMB COUNTY DISPATCH REPORTS TREES AND 
            WIRES DOWNED NEAR SCHOENHERR RD AND CLINTON 
            RIVER RD IN STERLING HEIGHTS. 
0429 PM     TSTM WND DMG     CLINTON TOWNSHIP        42.59N 82.92W
09/14/2021                   MACOMB             MI   911 CALL CENTER  
            MACOMB COUNTY DISPATCH REPORTS PARTIAL 
            BUILDING COLLAPSE. 
0431 PM     TSTM WND DMG     S HARBOR BEACH          43.85N 82.65W
09/14/2021                   HURON              MI   BROADCAST MEDIA  
            LARGE LIMBS DOWNED ON PRIVATE RESIDENCE. 
0454 PM     TSTM WND DMG     VASSAR                  43.37N 83.58W
09/14/2021                   TUSCOLA            MI   911 CALL CENTER  
            WIRES DOWNED. 
0513 PM     TSTM WND DMG     5 ESE CARO              43.45N 83.32W
09/14/2021                   TUSCOLA            MI   911 CALL CENTER  
            TREES DOWNED NEAR EAST DAYTON RD AND BEVENS 
            RD IN WELLS TWP. 
0549 PM     TSTM WND DMG     WSW SANDUSKY            43.42N 82.84W
09/14/2021                   SANILAC            MI   EMERGENCY MNGR   
            TREES AND WIRES DOWNED NEAR BRIDGEHAMPTON RD 
            AND WORTH ST AND ALSO NEAR MAIN ST AND 
            MARLETTE ST. 
0549 PM     TSTM WND DMG     E FOWLERVILLE           42.66N 84.07W
09/14/2021                   LIVINGSTON         MI   TRAINED SPOTTER  
            10 INCH TREE LIMB DOWNED. 
0555 PM     HAIL             N HOWELL                42.61N 83.94W
09/14/2021  M1.25 INCH       LIVINGSTON         MI   PUBLIC           
            PHOTOS SUBMITTED VIA SOCIAL MEDIA OF 
            MULTIPLE HALF DOLLAR SIZED HAILSTONES.SOME 
            JUST SHY OF WALNUT SIZED. 
0614 PM     TSTM WND DMG     WSW SANDUSKY            43.42N 82.84W
09/14/2021                   SANILAC            MI   EMERGENCY MNGR   
            CORRECTED TIME...TREES AND WIRES DOWNED NEAR 
            BRIDGEHAMPTON RD AND WORTH ST AND ALSO NEAR 
            MAIN ST AND MARLETTE ST. 
0739 PM     TSTM WND GST     3 SW ADRIAN             41.87N 84.08W
09/14/2021  M48 MPH          LENAWEE            MI   ASOS             
            MEASURED AT KADG LENAWEE COUNTY AIRPORT. 
0744 PM     TSTM WND DMG     1 E ADRIAN              41.90N 84.02W
09/14/2021                   LENAWEE            MI   TRAINED SPOTTER  
            MULTIPLE LARGE TREES DOWNED NEAR CHESNUT ST 
            AND ADDISON ST. 
0834 PM     TSTM WND GST     2 ENE ROMULUS           42.23N 83.33W
09/14/2021  M54 MPH          WAYNE              MI   ASOS             
            MEASURED AT KDTW DETROIT METRO AIRPORT. 
0837 PM     TSTM WND DMG     SOUTH ROCKWOOD          42.06N 83.26W
09/14/2021                   MONROE             MI   911 CALL CENTER  
            DISPATCH REPORTS TREES AND WIRES DOWN IN THE 
            SOUTH ROCKWOOD AREA. 
0850 PM     TSTM WND DMG     2 E TEMPERANCE          41.77N 83.53W
09/14/2021                   MONROE             MI   PUBLIC
            2 FOOT DIAMETER TREE DOWN ACROSS ROAD RELAYED VIA SOCIAL
            MEDIA PHOTOS NEAR VIENNA PARK IN TEMPERANCE.
0900 PM     MARINE TSTM WIND 6 WSW HARSENS ISLAND    42.56N 82.68W
09/14/2021  M47 MPH          ST. CLAIR          MI   MESONET          
            MEASURED AT CLUB ISLAND. 
0901 PM     TSTM WND DMG     LAMBERTVILLE            41.75N 83.62W
09/14/2021                   MONROE             MI   911 CALL CENTER  
            DISPATCH REPORTS NUMEROUS TREES AND 
            POWERLINES DOWN IN THE WHITEFORD AND BEDFORD 
            AREAS. 
&&
$$
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			 National Storm Reports for September 14, 2021  | 
		
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