This was a multi-round severe weather event. The first round started around 6pm with discrete cells and a few clusters moving from Knox, IN to Hillsdale, MI until around 9pm. The second round featured additional isolated development along a boundary draped across the northern CWA 9P-1A. The third round associated with the primary cold front swept across the CWA 1AM-5AM.
After further assessment, there appears to be lack of damage for any conclusive tornado event in Coldwater, MI. Most of the severe weather across southern Michigan was in the form of damaging winds, but there was also some large hail on the evening of the 20th.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 21-JUN-21 02:25:00 to 21-JUN-21 02:27:00 (EST-5)
Location: WHEATLAND
Magnitude: 56.00 EG
Reported by: Public

Two foot diameter tree branches down in roadway.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 21-JUN-21 02:27:00 to 21-JUN-21 02:30:00 (EST-5)
Location: SOMERSET
Magnitude: 56.00 EG
Property damage: 1.00K
Reported by: Public

Large tree branch down on house and power lines down.

Hail in CASS, MICHIGAN
From 20-JUN-21 18:15:00 to 20-JUN-21 18:16:00 (EST-5)
Location: SANDY SHORES
Magnitude: 0.75 
Reported by: Public

Thunderstorm Wind in ST. JOSEPH, MICHIGAN
From 20-JUN-21 18:45:00 to 20-JUN-21 18:46:00 (EST-5)
Location: CENTREVILLE
Magnitude: 56.00 EG
Reported by: Trained Spotter

Power lines down.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 20-JUN-21 18:54:00 to 20-JUN-21 18:59:00 (EST-5)
Location: PITTSFORD
Magnitude: 52.00 EG
Reported by: Emergency Manager

Three trees down across SE half of county.

Thunderstorm Wind in BRANCH, MICHIGAN
From 20-JUN-21 19:15:00 to 20-JUN-21 19:20:00 (EST-5)
Location: COLDWATER
Magnitude: 52.00 EG
Reported by: Public

Tree limbs down along US-12.

Thunderstorm Wind in ST. JOSEPH, MICHIGAN
From 20-JUN-21 18:45:00 to 20-JUN-21 18:46:00 (EST-5)
Location: CENTREVILLE
Magnitude: 52.00 EG
Reported by: Trained Spotter

A tree down across road.

Thunderstorm Wind in ST. JOSEPH, MICHIGAN
From 20-JUN-21 18:45:00 to 20-JUN-21 18:46:00 (EST-5)
Location: KIRSCH MUNI ARPT
Magnitude: 52.00 EG
Reported by: State Official

Tree down and blocking roadway.

Thunderstorm Wind in BRANCH, MICHIGAN
From 20-JUN-21 19:22:00 to 20-JUN-21 19:25:00 (EST-5)
Location: GIRARD
Magnitude: 61.00 EG
Reported by: Public

Trees uprooted or snapped.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 20-JUN-21 20:05:00 to 20-JUN-21 20:07:00 (EST-5)
Location: HILLSDALE
Magnitude: 52.00 EG
Reported by: Public

Large limbs down.

Thunderstorm Wind in BERRIEN, MICHIGAN
From 20-JUN-21 17:55:00 to 20-JUN-21 17:56:00 (EST-5)
Location: NILES
Magnitude: 52.00 EG
Reported by: Broadcast Media

WSBT relayed via Twitter a picture of a few broken tree branches.

Hail in BERRIEN, MICHIGAN
From 20-JUN-21 18:00:00 to 20-JUN-21 18:01:00 (EST-5)
Location: BERRIEN CENTER
Magnitude: 1.00 
Reported by: Public

Hail in BERRIEN, MICHIGAN
From 20-JUN-21 18:00:00 to 20-JUN-21 18:01:00 (EST-5)
Location: BERRIEN SPGS
Magnitude: 1.50 
Reported by: Public

Hail in BERRIEN, MICHIGAN
From 20-JUN-21 18:05:00 to 20-JUN-21 18:06:00 (EST-5)
Location: EAU CLAIRE
Magnitude: 2.00 
Reported by: Public

Thunderstorm Wind in ST. JOSEPH, MICHIGAN
From 20-JUN-21 18:50:00 to 20-JUN-21 18:52:00 (EST-5)
Location: STURGIS
Magnitude: 56.00 EG
Reported by: State Official

Multiple power lines downed.

Hail in BERRIEN, MICHIGAN
From 20-JUN-21 17:55:00 to 20-JUN-21 17:56:00 (EST-5)
Location: BERRIEN SPGS
Magnitude: 1.00 
Reported by: Public

Hail in CASS, MICHIGAN
From 20-JUN-21 23:49:00 to 20-JUN-21 23:50:00 (EST-5)
Location: SANDY SHORES
Magnitude: 0.75 
Reported by: Public

MPing report.

Thunderstorm Wind in CASS, MICHIGAN
From 21-JUN-21 00:30:00 to 21-JUN-21 00:35:00 (EST-5)
Location: INDIAN LAKE
Magnitude: 61.00 EG
Reported by: State Official

Several trees down across northern part of county.

Thunderstorm Wind in CASS, MICHIGAN
From 21-JUN-21 00:43:00 to 21-JUN-21 00:45:00 (EST-5)
Location: GLENWOOD
Magnitude: 52.00 EG
Property damage: 1.00K
Reported by: Emergency Manager

Large tree limbs 10 to 12 inches in diameter down on a house.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 21-JUN-21 02:20:00 to 21-JUN-21 02:25:00 (EST-5)
Location: SOMERSET CENTER
Magnitude: 65.00 EG
Reported by: Public

Several power poles and transmission lines down.

Thunderstorm Wind in CASS, MICHIGAN
From 21-JUN-21 00:40:00 to 21-JUN-21 00:42:00 (EST-5)
Location: RED MILL
Magnitude: 55.00 EG
Reported by: Emergency Manager

Four to six inch diameter branches down, along with power lines.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 20-JUN-21 21:30:00 to 20-JUN-21 22:00:00 (EST-5)
Location: HILLSDALE
Magnitude: 65.00 EG
Reported by: Emergency Manager

Several reports of trees and powerlines down across northern Hillsdale County from 2230 to 2300 EDT.

Hail in CASS, MICHIGAN
From 20-JUN-21 18:18:00 to 20-JUN-21 18:19:00 (EST-5)
Location: SANDY SHORES
Magnitude: 1.75 
Reported by: Broadcast Media

Local media reported via twitter on the west side of Magician Lake.

Thunderstorm Wind in BRANCH, MICHIGAN
From 20-JUN-21 21:07:00 to 20-JUN-21 21:10:00 (EST-5)
Location: GIRARD
Magnitude: 56.00 EG
Reported by: Public

Power poles broken. Three inch tree limbs broken.

Thunderstorm Wind in HILLSDALE, MICHIGAN
From 21-JUN-21 02:15:00 to 21-JUN-21 02:17:00 (EST-5)
Location: HILLSDALE
Magnitude: 56.00 EG
Reported by: Public

Power poles broken, along with three inch tree limbs.

Thunderstorm Wind in CASS, MICHIGAN
From 20-JUN-21 18:20:00 to 20-JUN-21 18:25:00 (EST-5)
Location: CASSOPOLIS
Magnitude: 61.00 EG
Reported by: Public

Trees and power lines down across Cassopolis.

Thunderstorm Wind in BRANCH, MICHIGAN
From 20-JUN-21 21:00:00 to 20-JUN-21 21:01:00 (EST-5)
Location: COLDWATER
Magnitude: 61.00 EG
Property damage: 5.00K
Reported by: Broadcast Media

Large tree snapped and fell on house.