A significant winter storm impacted Southeast Michigan from the evening of February 15 into the morning hours of February 16. A potent southern stream wave lifted northeast from eastern Texas and through the Ohio Valley. The system produced liquid equivalent precipitation amounts of 0.30 to over 0.50 inches and snow-to-liquid ratios ranging from 13:1 to 20:1. The result was heavy dry snow across most of the region with a widespread 6 to 9 inches outside of the Tri-Cities region. Gusty northeast winds during the event brought enhanced moisture in along the Lake Huron shoreline with locations across St. Clair and southern Sanilac County reporting over a foot of snow. Snowfall rates exceeded 1 inch per hour during the peak of the event, which occurred shortly after midnight. Winds gusted in excess of 30 mph during the morning which led to significant blowing and drifting of snow. Snowfall tapered off from south to north as the dry slot moved in during the mid-morning hours.
Here are some of the higher snowfall reports received:
Peck... 12.0 inches.
Marysville... 15.5 inches.
Flint... 9.6 inches.
Caro... 9.5 inches.
Lapeer... 9.3 inches.
Rochester Hill... 9.0 inches.
Detroit Metro... 8.6 inches.
Britton... 7.5 inches.
Howell... 7.2 inches.
Ann Arbor... 7.0 inches.

Heavy Snow in SHIAWASSEE, MICHIGAN
From 15-FEB-21 20:00:00 to 16-FEB-21 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in HURON, MICHIGAN
From 15-FEB-21 21:00:00 to 16-FEB-21 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in TUSCOLA, MICHIGAN
From 15-FEB-21 21:00:00 to 16-FEB-21 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in MONROE, MICHIGAN
From 15-FEB-21 17:00:00 to 16-FEB-21 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in LENAWEE, MICHIGAN
From 15-FEB-21 17:00:00 to 16-FEB-21 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WASHTENAW, MICHIGAN
From 15-FEB-21 18:00:00 to 16-FEB-21 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WAYNE, MICHIGAN
From 15-FEB-21 18:00:00 to 16-FEB-21 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in LIVINGSTON, MICHIGAN
From 15-FEB-21 19:00:00 to 16-FEB-21 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in OAKLAND, MICHIGAN
From 15-FEB-21 19:00:00 to 16-FEB-21 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in MACOMB, MICHIGAN
From 15-FEB-21 19:00:00 to 16-FEB-21 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in ST. CLAIR, MICHIGAN
From 15-FEB-21 20:00:00 to 16-FEB-21 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in SANILAC, MICHIGAN
From 15-FEB-21 21:00:00 to 16-FEB-21 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in LAPEER, MICHIGAN
From 15-FEB-21 20:00:00 to 16-FEB-21 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in GENESEE, MICHIGAN
From 15-FEB-21 20:00:00 to 16-FEB-21 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter