Michigan, 2010

Lake-Effect Snow and Winter Weather in Michigan, December 5 to 7, 2010

December 5 to 7, 2010 · NWS IWX · 4 events in 4 counties and zones

Multiple lake effect snow bands dropped accumulating snow across much of southwest Lower Michigan December 5th through December 7th. The heaviest snow fell across Berrien and Cass counties.

Where it happened

Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS IWX wrote it up.

Multiple lake effect snow bands dropped accumulating snow across much of southwest Lower Michigan December 5th through December 7th. The heaviest snow fell across Berrien and Cass counties. Gusty winds within these snow bands created widespread blowing and drifting snow.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 lake-effect snow, 2 winter weather. Local standard time, as filed.

Lake-Effect Snow, Berrien

When
December 5, 2:00 AM EST to December 7, 7:00 PM EST
Where
Berrien forecast zone
Reported by
Trained Spotter

A long duration lake effect snow event affected the area December 5th through December 7th. The lake effect snow bands were cellular and transitory, resulting in periods of moderate to heavy lake effect snow during this time. Snowfall totals for the entire event ranged from 5 inches in far southwestern portions of the county to around a foot of snow in eastern and northern Berrien County. A trained spotter reported 1 inch per hour snowfall rates and 6 inches of snow accumulation in just 10 hours on December 5th. This snowfall, combined with blowing and drifting snow from gusty winds, led to numerous accidents on area roadways and school closures.

Lake-Effect Snow, Cass

When
December 5, 5:00 AM EST to December 7, 7:00 PM EST
Where
Cass forecast zone
Reported by
Broadcast Media
Coordinates
41.915, -85.993 (the zone’s center; the record gives no point)

A long duration lake effect snow event affected the area December 5th through December 7th. The lake effect snow bands were cellular and transitory, resulting in periods of moderate to heavy lake effect snow during this time. Snowfall totals for the entire event ranged between 8 and 14 inches across the county. A CoCoRaHs observer in Dowagiac reported 12.5 inches of total snow accumulation. This snowfall, combined with blowing and drifting snow from gusty winds, led to numerous accidents on area roadways and school closures.

Winter Weather, St. Joseph

When
December 5, 9:00 AM EST to December 7, 7:00 PM EST
Where
St. Joseph forecast zone
Reported by
Trained Spotter
Coordinates
41.914, -85.528 (the zone’s center; the record gives no point)

A long duration lake effect snow event affected the area December 5th through December 7th. The lake effect snow bands were cellular and transitory, resulting in periods of moderate lake effect snow during this time. Snowfall totals for the entire event generally ranged between 3 and 6 inches, heaviest across far western portions of the county. A trained spotter reported 3.5 inches of total snow accumulation in Three Rivers. This snowfall, combined with blowing and drifting snow from gusty winds, led to numerous accidents on area roadways. There were also school delays and closures.

Winter Weather, Branch

When
December 5, 9:00 AM EST to December 7, 7:00 PM EST
Where
Branch forecast zone
Reported by
CoCoRaHS
Coordinates
41.916, -85.059 (the zone’s center; the record gives no point)

A long duration lake effect snow event affected the area December 5th through December 7th. The lake effect snow bands were cellular and transitory, resulting in periods of moderate lake effect snow during this time. Snowfall totals for the entire event generally ranged between 1 and 4 inches, heaviest across far western portions of the county. This snowfall, combined with blowing and drifting snow from gusty winds, led to numerous accidents on area roadways. There were also school delays and closures.

What these are

Lake-Effect Snow
Heavy snow in bands downwind of a large lake as cold air crosses warmer water.
Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Michigan in 2010Every state in 2010This day in weather historyWarnings in Michigan, December 2010

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 264841, 264842, 264850, 264851.