The radar-estimated size surface caught this storm, reaching 1.25" aloft. NEXRAD logged no point detections over Three Rivers this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
1.25"
≈ half-dollar · radar-estimated size aloft3,900
5
2 hail · 3 tornadoOverview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Mar 6, 2026 — this storm produced no NEXRAD point detections over Three Rivers, so there is one map to show, not two.
This was Three Rivers's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Three Rivers at 1.25" — radar-estimated size aloft.
The Mar 6, 2026 convective day was bigger than Three Rivers: the same system put hail over 486 other tracked cities, 21 of them in Michigan. Nearest: Mendon (15 miles northeast, up to 1.25"); Cassopolis (15 miles west, up to 0.5"); Dowagiac (18 miles west, up to 0.75").
These maps are stills from Three Rivers's Mar 6, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
“Numerous videos from storm chasers... trained spotters... broadcast media... and the public confirm a tornado in Three Rivers Michigan. Time estimated via radar. (IWX)”
— NOAA / SPC storm report
“Numerous reports of significant damage on the southwest side of Three Rivers. Storm chasers and Emergency Management confirmed multiple tornado touchdowns prior to the (IWX)”
— NOAA / SPC storm report
“Video sent in showing a tornado hitting the Menards store and lifted at least a portion of the roof off on main building. Their storage unit nearby was also damaged by (IWX)”
— NOAA / SPC storm report
“Photo of hail up to a quarter in diameter in a photo taken on Marcellus Rd in Three Rivers. Time estimated via radar. (IWX)”
— NOAA / SPC storm report
“Photo on Facebook shows a hailstone measured to be 1.75 inches. Public reports it fell between Mendon and Three Rivers. Time estimated via radar. (IWX)”
— NOAA / SPC storm report
Reports came from Fishers Lake — beyond Three Rivers itself.
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$47M
Potential roof exposure — 3,900 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Radar updates in real time, spotter reports appear on the map as they're filed, and the full Three Rivers storm history — this Mar 6, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
5 recorded storm days in Three Rivers, MI
Jul 3, 2026
1.75"
May 4, 2026
1"
Apr 22, 2026
0.75"
Mar 26, 2026
0.75"