The passage of a strong cold front and the advection of very cold Arctic air across Lake Superior resulted in a prolonged lake effect snow and bitter cold wind chill event from the 3rd into the 7th.

Winter Weather in ALGER, MICHIGAN
From 04-JAN-17 00:00:00 to 04-JAN-17 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The observer ten miles south of Grand Marais measured nearly three inches of lake effect snow in six hours.

Winter Weather in BARAGA, MICHIGAN
From 04-JAN-17 01:00:00 to 04-JAN-17 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

There was a public report of 4.3 inches of lake effect snow in nine hours at Keweenaw Bay.

Winter Weather in ONTONAGON, MICHIGAN
From 03-JAN-17 19:00:00 to 04-JAN-17 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The observer six miles north of Greenland measured nearly four inches of lake effect snow in approximately 13 hours.

Lake-Effect Snow in NORTHERN SCHOOLCRAFT, MICHIGAN
From 05-JAN-17 07:00:00 to 06-JAN-17 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

There was an estimated 12 inches of lake effect snow in 24 hours north of Highway M-28.

Lake-Effect Snow in NORTHERN HOUGHTON, MICHIGAN
From 06-JAN-17 19:00:00 to 07-JAN-17 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The observer near Kearsarge measured eight inches of lake effect snow in 12 hours.  There was also a public report of 10 inches of snow in 12 hours at Calumet.

Lake-Effect Snow in KEWEENAW, MICHIGAN
From 06-JAN-17 19:00:00 to 07-JAN-17 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The observer near Kearsarge measured eight inches of lake effect snow in approximately 12 hours.

Winter Weather in NORTHERN HOUGHTON, MICHIGAN
From 03-JAN-17 21:00:00 to 04-JAN-17 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

There was a public report of nearly six inches of lake effect snow at Painesdale in 14 hours and nearly five inches of snow at Chassell.

Winter Weather in LUCE, MICHIGAN
From 04-JAN-17 09:00:00 to 05-JAN-17 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was a public report of eight inches of lake effect snow in 24 hours at McMillan.

Lake-Effect Snow in ALGER, MICHIGAN
From 05-JAN-17 07:00:00 to 06-JAN-17 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was a public report of 12 inches of lake effect snow in 24 hours six miles southwest of Grand Marais.  Strong and gusty northwest winds were also reported which caused blowing and drifting of snow.

Cold/Wind Chill in GOGEBIC, MICHIGAN
From 04-JAN-17 22:00:00 to 07-JAN-17 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Lowest wind chills at Ironwood during the period were between 25 and 35 below zero.

Cold/Wind Chill in IRON, MICHIGAN
From 04-JAN-17 22:00:00 to 07-JAN-17 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Lowest wind chills during the period were between 25 and 35 below zero.

Cold/Wind Chill in ONTONAGON, MICHIGAN
From 04-JAN-17 23:00:00 to 07-JAN-17 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Lowest wind chills during the period were between 25 and 35 below zero.

Cold/Wind Chill in DICKINSON, MICHIGAN
From 05-JAN-17 04:00:00 to 06-JAN-17 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Lowest wind chills at Iron Mountain during the period were as low as 25 below zero.

Cold/Wind Chill in DELTA, MICHIGAN
From 07-JAN-17 08:00:00 to 07-JAN-17 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Lowest wind chills at Escanaba during the period were near 25 below zero.

Cold/Wind Chill in MARQUETTE, MICHIGAN
From 07-JAN-17 03:00:00 to 07-JAN-17 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Lowest wind chills at Sawyer International Airport during the period were between 20 and 25 below zero.