Hail size 1"
1 WNW Spread Eagle Florence County
“Reports of 1 inch hail for 1 minute duration. (GRB)”
— NOAA / SPC storm report
/ Storm field report · Dickinson
Hail in Iron Mountain · Jul 20, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Iron Mountain that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 2,852
Ground reports 2 2 hail
Radar surfaces 1 Estimated size only
Convective day · Jul 20, 2026 · noon–noon UTC
Severity
The most severe storm Iron Mountain has seen in the last 12 months
Composite score · 3.4 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.4 /10
- Peak hail signal
- 19 /100
- Homes exposed
- 69 /100
- Ground truth
- 33 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Iron Mountain saw the hail — from two instruments
Jul 20, 2026 · Iron Mountain, MI
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
Radar-estimated hail size Surface resolved
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
0.75"
Only the radar-estimated size surface resolved for Jul 20, 2026 — this storm produced no NEXRAD point detections over Iron Mountain, so there is one map to show, not two.
The storm in context
Where Jul 20, 2026 sits in Iron Mountain's hail record.
This was Iron Mountain's 2nd recorded hail day, arriving 22 days after the Jun 28, 2026 storm. By severity it ranks 1st of the 2 storms we have logged here. Radar put the day's largest stone over Iron Mountain at 0.75" — radar-estimated size aloft.
The Jul 20, 2026 convective day was bigger than Iron Mountain: the same system put hail over 553 other tracked cities, 65 of them in Michigan. Nearest: Kingsford (7 miles south, up to 0.75"); Quinnesec (8 miles southeast, up to 0.75"); Norway (12 miles southeast, up to 0.75").
These maps are stills. In the app this date is one of 2 Iron Mountain storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
2 reports filed with the NWS
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.
Hail reports
2 reports Hail size 1"
Spread Eagle Florence County
“Nickel to quarter size hail fell for about 90 seconds in Spread Eagle. (GRB)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 22 minutes, from to .
Reports came from Spread Eagle — beyond Iron Mountain itself.
Near the severe threshold
What 0.75" hail means for Iron Mountain roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
2,852 homes × $12,000 avg. claim
Potential roof exposure
$34M
Potential roof exposure — 2,852 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 14 jobs
- Illustrative work
- ~$210K
Close just 0.5% of the 2,852 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
July 2028
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $599 on top of the $150 plan.
Iron Mountain hail history
Other storms in Iron Mountain.
2 recorded storm days in Iron Mountain, MI
The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 3, 2026.