“Delayed emergency management report of a measured hailstone 3.5 inches in diameter... shown in a photo next to a ruler. Time estimated with radar. (OAX)”
— NOAA / SPC storm report
Hail in Coin · Jun 10, 2026
The estimated-size surface reached 3.5" aloft; NEXRAD logged no point detections over Coin that day. At 3.5" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
Convective day · Jun 10, 2026 · noon–noon UTC
Severity
The most severe storm Coin 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
- 88 /100
- Homes exposed
- 61 /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 Coin saw the hail — from two instruments
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.
Estimated size field 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 Jun 10, 2026 — this storm produced no NEXRAD point detections over Coin, so there is one map to show, not two.
The storm in context
Where Jun 10, 2026 sits in Coin's hail record.
This was Coin's 5th recorded hail day, arriving 23 days after the May 18, 2026 storm. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Coin at 3.5" — radar-estimated size aloft.
The Jun 10, 2026 convective day was bigger than Coin: the same system put hail over 777 other tracked cities, 155 of them in Iowa. Nearest: Blanchard (7 miles south, up to 3.25"); Essex (7 miles north, up to 2.5"); Northboro (9 miles southwest, up to 3.5").
These maps are stills. In the app this date is one of 8 Coin 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.
Hail reports
2 reports“(OAX)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Yorktown — beyond Coin itself.
Severe hail signal
What 3.5" hail means for Coin roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$13M
Potential roof exposure — 1,059 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 5 jobs
- Illustrative work
- ~$75K
Close just 0.5% of the 1,059 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
June 2028
Claims from this storm can typically be filed until around June 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 $222 on top of the $150 plan.
Estimated-size surface Aug 9, 2026
0.75"
Estimated-size surface Jun 30, 2026
0.5"
Estimated-size surface Jun 13, 2026
1.25"
Estimated-size surface May 18, 2026
2.5"
Estimated-size surface Apr 23, 2026
1.5"
Estimated-size surface Apr 14, 2026
0.5"
Estimated-size surface Mar 5, 2026
1"The next storm won’t wait for you.
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