Multiple thunderstorms tracked across northern Michigan during the afternoon, including a supercell thunderstorm that produced the EF-3 tornado that hit the town of Gaylord along with very large hail in other parts of the area.
Setting the stage for severe weather was a trough that rotated across the upper Midwest that developed and strengthened surface low pressure west of Lake Michigan. This system helped draw a warm, moist airmass northward across the state that helped provide the instability necessary to support severe thunderstorms later in the day. Storms initially formed along the cold front across Wisconsin during the morning hours and moved northeast across Lake Michigan, making it into the forecast area by early afternoon. The strongest line segment generated a measured wind gust of 76 mph at Frankfort Light and continued to produce damaging wind gusts across Leelanau and Antrim counties as it quickly moved northeast.
As this segment moved further away from the cold front, it began to transition into a supercell thunderstorm. This storm moved east-northeast across a very favorable environment in place across northern lower Michigan, eventually producing a tornado that caused considerable damage in the city of Gaylord. This supercell continued to trek across the area, producing baseball-sized hail in Posen.
For additional context, this was the first time in reliable recorded history (since 1950) that Gaylord was hit by a tornado. This was also the first significant tornado (EF2 or greater) in the county warning area since October 18, 2007.

Hail in PRESQUE ISLE, MICHIGAN
From 20-MAY-22 15:15:00 to 20-MAY-22 15:15:00 (EST-5)
Location: ONAWAY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Facebook photo of 1.5 inch hail at Tomahawk Creek Flooding. Time estimated on radar.

Hail in PRESQUE ISLE, MICHIGAN
From 20-MAY-22 15:38:00 to 20-MAY-22 15:38:00 (EST-5)
Location: HAWKS
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two inch hail report. Time estimated by radar.

Hail in PRESQUE ISLE, MICHIGAN
From 20-MAY-22 15:45:00 to 20-MAY-22 15:45:00 (EST-5)
Location: POSEN
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Baseball sized hail was reported in Posen.

Hail in PRESQUE ISLE, MICHIGAN
From 20-MAY-22 15:50:00 to 20-MAY-22 15:50:00 (EST-5)
Location: ERAND LAKE
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Three inch hail was reported near Presque Isle.

Hail in PRESQUE ISLE, MICHIGAN
From 20-MAY-22 15:57:00 to 20-MAY-22 15:57:00 (EST-5)
Location: ERAND LAKE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report of hen egg sized hail in Black Bass Bay. Time estimated by radar.

Thunderstorm Wind in LEELANAU, MICHIGAN
From 20-MAY-22 13:30:00 to 20-MAY-22 13:30:00 (EST-5)
Location: GLEN ARBOR
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

County dispatch reported tree down blocking S. Glen Lake Rd. Time estimated via radar.

Tornado in ANTRIM, MICHIGAN
From 20-MAY-22 14:35:00 to 20-MAY-22 14:38:00 (EST-5)
Location: ALBA
Tornado F-scale: EF1
Property damage: 175.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado formed 4 miles east of Alba in a location on Olds Rd 0.5 miles east of the Alba Rd intersection. It tracked east northeast for about 1.75 miles before exiting Antrim county 200 yards southeast of the Alba Rd/Old Alba Rd intersection. The tornado continued in Otsego county for almost 16 additional miles before dissipating at 1457 EST. In Antrim county, no injuries or fatalities were reported. Several homes were damaged along with numerous softwood trees snapped at their trunks (DI 28, DOD 4) along Patterson Rd. While the highest rating of EF1 in Antrim county was assigned at this location, the tornado was rated EF3 in Otsego county. The maximum path width in Antrim county was 200 yards.

Thunderstorm Wind in LEELANAU, MICHIGAN
From 20-MAY-22 13:35:00 to 20-MAY-22 13:35:00 (EST-5)
Location: LAKE LEELANAU
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree down blocking Popp Rd. Time estimated via radar.

Thunderstorm Wind in ANTRIM, MICHIGAN
From 20-MAY-22 14:14:00 to 20-MAY-22 14:14:00 (EST-5)
Location: CENTRAL LAKE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Scanner reports crews are on the scene of a tree blocking a roadway near central lake. Time estimated via radar.

Thunderstorm Wind in ANTRIM, MICHIGAN
From 20-MAY-22 14:16:00 to 20-MAY-22 14:16:00 (EST-5)
Location: BELLAIRE ANTRIM ARPT
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Reports of trees and wires down in Bellaire. Time estimated from radar.

Thunderstorm Wind in ANTRIM, MICHIGAN
From 20-MAY-22 14:08:00 to 20-MAY-22 14:08:00 (EST-5)
Location: CHESTONIA
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Report estimating an 80 foot wide swath of trees down on the southwest side of Walloon Lake.

Hail in ANTRIM, MICHIGAN
From 20-MAY-22 14:35:00 to 20-MAY-22 14:35:00 (EST-5)
Location: ALBA
Magnitude: 2.50 
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

Report of hail smaller than baseballs resulting in roof, siding, and garage door damage to two houses.

Hail in ANTRIM, MICHIGAN
From 20-MAY-22 14:25:00 to 20-MAY-22 14:25:00 (EST-5)
Location: ALBA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

One inch hail 4 miles west of Alba.

Hail in ANTRIM, MICHIGAN
From 20-MAY-22 14:37:00 to 20-MAY-22 14:37:00 (EST-5)
Location: ALBA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Facebook photo of golf ball sized hail at the intersection of M 32 and US 131. Time estimated by radar.

Hail in OTSEGO, MICHIGAN
From 20-MAY-22 14:39:00 to 20-MAY-22 14:39:00 (EST-5)
Location: ELMIRA
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Facebook photo of hailstone in Elmira. Time estimated by radar.

Hail in OTSEGO, MICHIGAN
From 20-MAY-22 14:45:00 to 20-MAY-22 14:45:00 (EST-5)
Location: GAYLORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail 5 miles northwest of Gaylord.

Tornado in OTSEGO, MICHIGAN
From 20-MAY-22 14:38:00 to 20-MAY-22 14:57:00 (EST-5)
Location: ELMIRA
Tornado F-scale: EF3
Property damage: 50.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado formed in Antrim county 4 miles east of Alba and continued into Otsego county 100 yards SE of the Alba Rd/Old Alba Rd intersection. The tornado continued to move east northeast for almost 16 additional miles before dissipating around 1.75 miles northeast of Sparr. The tornado was rated EF3 in Otsego county based on damage surveyed in multiple locations around the Gaylord area. The first of these locations was damage in the Nottingham Forest manufactured home community. Multiple units were completely destroyed with debris blown away from the original locations of the units (DI 4, DOD 12). The second location was the business district of Gaylord where the buildings of Hobby Lobby, Maurices, and Jimmy Johns experienced collapses of exterior walls where interior walls remained standing (DI 10, DOD 8). The last location, which had the highest estimated wind speed of 150 mph, was damage found to homes on Berkshire Ln on the northeast side of Gaylord. Most exterior walls were collapsed and only partial interior walls were left standing (DI 2, DOD 8).  The tornado dissipated at 1457 EST about 1.75 miles northeast of Sparr. Two fatalities were reported in the Nottingham Forest community, along with 44 injuries reported from various locations around Gaylord. The maximum path width in Otsego county was 200 yards.

Hail in OTSEGO, MICHIGAN
From 20-MAY-22 14:49:00 to 20-MAY-22 14:49:00 (EST-5)
Location: VANDERBILT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel sized hail in Corwith Twp via Facebook. Time estimated by radar.

Hail in MACKINAC, MICHIGAN
From 20-MAY-22 14:58:00 to 20-MAY-22 14:58:00 (EST-5)
Location: HESSEL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Golf ball sized hail in Hessel. Time estimated by radar.