A combination of Gulf and Atlantic moisture being drawn into a deepening low pressure system over the Upper Great Lakes resulted in record calendar day snowfall totals for May over portions of west and north central Upper Michigan on the 1st and 2nd.

Winter Storm in ALGER, MICHIGAN
From 01-MAY-23 00:00:00 to 02-MAY-23 15:00:00 (EST-5)
Property damage: 500.00K
Crop damage: 0.00K
Reported by: COOP Observer

Storm total snowfall amounts across the county through the afternoon of the 2nd included an estimated 19 inches 11 miles southwest of Munising and 16 inches at Eben Junction. The wet and heavy snowfall brought down trees and powerlines causing power outages. There were numerous road closures across the county due to the near impossible travel on roadways from dense and compacted wet snow. Schools were closed throughout the county on the 2nd and Au Train-Onoto Schools were closed on the 1st.

Winter Storm in ONTONAGON, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The observer at Bergland Dam measured nearly five inches of wet, heavy snow during the early morning of the 1st.  Schools were closed throughout the county on the morning of the 1st due to hazardous travel on snow-packed and slippery roadways.

Winter Weather in DICKINSON, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Observers reported 4 to 5 inches of wet, heavy snow and blowing snow and reduced visibility from north winds gusting near 50 mph.  Roads were reported to be snow-covered and slippery with very hazardous travel.  Schools throughout the county were either closed or on a two-hour delay due to the hazardous travel from the snow.

Winter Storm in NORTHERN HOUGHTON, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A widespread 3 to 6 inches of wet, heavy snow across the county combined with blowing snow from north winds gusting to 50 mph at times caused very hazardous travel conditions on the 1st.  Schools were closed throughout the county on the 1st.

Winter Storm in KEWEENAW, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

An estimated 2 to 6 inches of widespread wet, heavy snow across the county combined with blowing snow from north winds gusting to 50 mph at times caused very hazardous travel conditions on the 1st. Schools were closed throughout the county on the 1st.

Winter Storm in SOUTHERN HOUGHTON, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A widespread 3 to 6 inches of wet, heavy snow across the county combined with blowing snow from north winds gusting to 40 mph at times caused very hazardous travel conditions on the 1st. Schools were closed throughout the county on the 1st.

Winter Weather in LUCE, MICHIGAN
From 01-MAY-23 12:00:00 to 02-MAY-23 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

There were social media reports of 6 inches of wet snow in 24 hours at Pine Stump Junction and eight miles north of McMillan.

Winter Storm in MARQUETTE, MICHIGAN
From 01-MAY-23 00:00:00 to 02-MAY-23 13:00:00 (EST-5)
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Official NWS Observations

Observers and snowfall spotters reported storm total snowfall of more than one to two and a half feet of snowfall over the higher terrain of western Marquette County from late evening April 30th to the afternoon of the May 2nd.  Storm total snow near the Lake Superior shoreline was closer to 4 to 7 inches during the event.  The Marquette NWS in Negaunee Township measured 27.9 inches of snowfall during the event with a May calendar day record of 19.8 inches on the 1st.  This event helped push the 2022-2023 NWS Marquette seasonal snowfall total to 265.1 inches, the 4th highest on record.
The wet and heavy snowfall combined with north winds gusting near 45 mph at times brought down trees and powerlines causing widespread power outages. Numerous roads were closed across the county due to the near impossible travel on roadways from dense and compacted wet snow.  Schools were closed throughout the county on the 1st and 2nd.

Winter Storm in BARAGA, MICHIGAN
From 01-MAY-23 00:00:00 to 02-MAY-23 13:00:00 (EST-5)
Property damage: 500.00K
Crop damage: 0.00K
Reported by: COOP Observer

Storm total snowfall reports across the county included an estimated 41 inches just southeast of Mount Arvon, 27 inches at Herman, 19.5 inches at Three Lakes, 14 inches at L'Anse and 9.7 inches at Michigamme.  The wet and heavy snowfall brought down trees and powerlines causing power outages, and numerous roads were closed across the county due to the near impossible travel on roadways from dense and compacted wet snow. Schools were closed throughout the county on the 1st and 2nd.

Winter Storm in IRON, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 10:00:00 (CST-6)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: COOP Observer

Wet heavy snowfall reports included an estimated 11 inches eight miles north of Amasa and nearly 8 inches in Amasa. The wet and heavy snowfall brought down trees and a few powerlines causing some power outages.  Schools were closed throughout the county on the 1st due snow-packed roadways and treacherous travel conditions.

Winter Storm in GOGEBIC, MICHIGAN
From 01-MAY-23 00:00:00 to 01-MAY-23 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Storm total snowfall included 6 to 8 inches of wet and heavy snow in the Ironwood area and 9 inches along the west shore of Lake Gogebic.  The wet heavy snow and treacherous travel on roadways closed schools throughout the county on the 1st.