Hail in Masonville · Aug 11, 2026
Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 8th most severe storm Masonville 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
- 38 /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 Masonville 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 Aug 11, 2026 — this storm produced no NEXRAD point detections over Masonville, so there is one map to show, not two.
The storm in context
Where Aug 11, 2026 sits in Masonville's hail record.
This was Masonville's 9th recorded hail day, arriving 4 days after the Aug 7, 2026 storm. By severity it ranks 8th of the 9 storms we have logged here. Radar put the day's largest stone over Masonville at 0.5" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Masonville: the same system put hail over 1,041 other tracked cities, 89 of them in Iowa. Nearest: Manchester (5 miles east, up to 0.5"); Aurora (9 miles northwest, up to 0.5"); Strawberry Point (9 miles northeast, up to 0.5").
These maps are stills. In the app this date is one of 9 Masonville 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 Masonville. 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 Masonville 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
$972K
Potential roof exposure — 81 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
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 $17 on top of the $150 plan.
Masonville hail history
Other storms in Masonville.
Estimated-size surface Aug 7, 2026
1.75"
Estimated-size surface Jul 2, 2026
1.75"
Estimated-size surface Jun 28, 2026
1"
Estimated-size surface Jun 10, 2026
0.5"
Estimated-size surface Apr 23, 2026
1"
Estimated-size surface Apr 17, 2026
1.25"
Estimated-size surface Apr 15, 2026
1"
Estimated-size surface Apr 14, 2026
1.5"The next storm won’t wait for you.
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