Hail in Marathon · Aug 8, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Aug 8, 2026 · noon–noon UTC
Severity
The 5th most severe storm Marathon 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
- 25 /100
- Homes exposed
- 49 /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 Marathon 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.
Radar signature field NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
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.
The storm in context
Where Aug 8, 2026 sits in Marathon's hail record.
This was Marathon's 7th recorded hail day, arriving 37 days after the Jul 2, 2026 storm. By severity it ranks 5th of the 8 storms we have logged here. Radar put the day's largest stone over Marathon at 1" — radar-estimated size aloft.
The Aug 8, 2026 convective day was bigger than Marathon: the same system put hail over 500 other tracked cities, 76 of them in Iowa. Nearest: Albert City (9 miles southeast, up to 0.5"); Laurens (12 miles southeast, up to 1"); Sioux Rapids (12 miles northwest, up to 0.5").
These maps are stills. In the app this date is one of 8 Marathon 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.
For this storm over Marathon, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
Damage-capable hail signal
What 1" hail means for Marathon roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$3.5M
Potential roof exposure — 292 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 1 job
- Illustrative work
- ~$15K
Close just 0.5% of the 292 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
August 2028
Claims from this storm can typically be filed until around August 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 $61 on top of the $150 plan.
Marathon hail history
Other storms in Marathon.
Estimated-size surface Sep 6, 2026
0.75"
Estimated-size surface Jul 2, 2026
Estimated-size surface Jun 28, 2026
3"
Estimated-size surface Jun 7, 2026
0.5"
Estimated-size surface May 15, 2026
1"
Estimated-size surface Apr 23, 2026
1.25"
Estimated-size surface Apr 13, 2026
1.25"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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