Hail in West Branch · Aug 11, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over West Branch that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 5th most severe storm West Branch 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
- 19 /100
- Homes exposed
- 73 /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 West Branch 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 Aug 11, 2026 — this storm produced no NEXRAD point detections over West Branch, so there is one map to show, not two.
The storm in context
Where Aug 11, 2026 sits in West Branch's hail record.
This was West Branch's 7th recorded hail day, arriving 39 days after the Jul 3, 2026 storm. By severity it ranks 5th of the 7 storms we have logged here. Radar put the day's largest stone over West Branch at 0.75" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than West Branch: the same system put hail over 1,041 other tracked cities, 89 of them in Iowa. Nearest: Iowa City (8 miles southwest, up to 0.75"); West Liberty (11 miles south, up to 1"); Tipton (11 miles east, up to 0.75").
These maps are stills. In the app this date is one of 7 West Branch 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 West Branch. 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.
Near the severe threshold
What 0.75" hail means for West Branch 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.
Potential roof exposure
$51M
Potential roof exposure — 4,218 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 21 jobs
- Illustrative work
- ~$315K
Close just 0.5% of the 4,218 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 $886 on top of the $150 plan.
West Branch hail history
Other storms in West Branch.
Estimated-size surface Jul 3, 2026
1.75"
Estimated-size surface Jun 10, 2026
0.5"
Estimated-size surface Apr 15, 2026
0.5"
Estimated-size surface Apr 2, 2026
2.75"
Estimated-size surface Mar 30, 2026
1"
Estimated-size surface Mar 10, 2026
1.5"Take your next area into the field.
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