A significant late season winter storm emerging out of the mid-Mississippi Valley dumped heavy snow over much of western Upper Michigan...especially higher terrain locations along Lake Superior...from the 18th into the 20th.  North winds gusting over 50 mph in the wake of the storm system produced blizzard conditions over the Keweenaw Peninsula on the 19th.

Winter Storm in BARAGA, MICHIGAN
From 18-APR-13 19:00:00 to 20-APR-13 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The observer at Herman measured nearly 11 inches of storm total snowfall.  North winds gusting to 30 mph at times caused extensive blowing and drifting of snow on the 19th.  The storm forced the early dismissal of schools on the 19th.

Winter Weather in MARQUETTE, MICHIGAN
From 19-APR-13 02:00:00 to 20-APR-13 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The National Weather Service in Negaunee Township measured eight inches of snow in 28 hours while a spotter northwest of Ishpeming measured over nine inches of snow during the same period.  Northwest winds gusting over 40 mph at times also caused extensive blowing and drifting of snow on the 19th.

Winter Weather in LUCE, MICHIGAN
From 20-APR-13 07:00:00 to 20-APR-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The spotter at Newberry measured 4.7 inches of lake effect snow in 12 hours.

Winter Storm in KEWEENAW, MICHIGAN
From 18-APR-13 22:30:00 to 19-APR-13 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Heavy snow and extensive blowing snow was reported from Eagle Harbor to near Calumet as north winds gusted near 45 mph at times.  Six inches of snow was reported at Eagle Harbor in less than 12 hours.

Blizzard in NORTHERN HOUGHTON, MICHIGAN
From 19-APR-13 10:00:00 to 20-APR-13 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow and blowing snow from north winds gusting over 50 mph reduced visibility to near zero on the 19th across many locations of northern Houghton County.  The strong north winds also caused extensive drifting of snow.  Storm total snowfall was 21.4 inches at Twin Lakes from late evening on the 18th into the morning of the 20th.  The blizzard conditions forced the early dismissal of area schools on the 19th.

Blizzard in KEWEENAW, MICHIGAN
From 19-APR-13 10:00:00 to 20-APR-13 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The observer in Mohawk on the 19th reported heavy snow and extensive blowing and drifting snow from north winds gusting to 50 mph at times.  Mohawk reported a storm total snowfall of 12 inches from the evening of the 18th through the morning of the 20th.  The blizzard conditions forced the early dismissal of area schools on the 19th.

Winter Storm in GOGEBIC, MICHIGAN
From 18-APR-13 18:00:00 to 19-APR-13 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The spotter near Bessemer estimated a storm total snowfall of 20 to 22 inches for the period from the evening of the 18th into the morning of the 20th.  North winds gusting over 30 mph at times also caused considerable blowing and drifting of snow and reduced visibility to one-quarter mile at times on the 19th.  The storm closed most schools throughout the county on the 19th.

Winter Storm in SOUTHERN HOUGHTON, MICHIGAN
From 18-APR-13 19:00:00 to 19-APR-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

From Pelkie to Alston, an estimated six inches of snow fell in 12 hours for the period ending midday on the 19th.  North winds gusting to 30 mph at times also caused considerable blowing and drifting of snow on the 19th.

Winter Storm in ONTONAGON, MICHIGAN
From 18-APR-13 19:00:00 to 19-APR-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The spotter five miles west of Bruce Crossing estimated 13 to 15 inches of storm total snowfall. Strong north winds gusting over 30 mph at times caused extensive blowing and drifting of snow.  Whiteout conditions were observed at times and drifts were reportedly two feet high.  The spotter in Paulding measured a foot of storm total snowfall.  The storm closed schools throughout the county on the 19th.