Hail in Mountain Iron · Sep 11, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Mountain Iron that day. Open it on the live map to see the swath over the streets.
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Convective day · Sep 11, 2026 · noon–noon UTC
Severity
The 5th most severe storm Mountain Iron has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 13 /100
- Homes exposed
- 27 /100
- Ground truth
- 0 /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 Mountain Iron saw the hail — from two instruments
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.
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.
Only the radar-estimated size surface resolved for Sep 11, 2026 — this storm produced no NEXRAD point detections over Mountain Iron, so there is one map to show, not two.
The storm in context
Where Sep 11, 2026 sits in Mountain Iron's hail record.
This was Mountain Iron's 6th recorded hail day, arriving 25 days after the Aug 17, 2026 storm. By severity it ranks 5th of the 6 storms we have logged here. Radar put the day's largest stone over Mountain Iron at 0.5" — radar-estimated size aloft.
The Sep 11, 2026 convective day was bigger than Mountain Iron: the same system put hail over 322 other tracked cities, 53 of them in Minnesota. Nearest: Chisholm (8 miles northwest, up to 1"); Britt (11 miles north, up to 0.75"); Virginia (14 miles northeast, up to 1.75").
These maps are stills. In the app this date is one of 6 Mountain Iron 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
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.
The National Weather Service logged no spotter reports for this storm over Mountain Iron. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Below the severe threshold
What 0.5" hail means for Mountain Iron roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$264K
Potential roof exposure — 22 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
September 2028
Claims from this storm can typically be filed until around September 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 $5 on top of the $150 plan.
Mountain Iron hail history
Other storms in Mountain Iron.
Estimated-size surface Aug 17, 2026
0.5"
Estimated-size surface Jul 29, 2026
0.5"
Estimated-size surface Jul 26, 2026
0.75"
Estimated-size surface Jul 17, 2026
1"
Estimated-size surface Jun 29, 2026
1.5"Take your next area into the field.
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