Tornado Rating unknown
1 SSE Webster City Hamilton County
“Multiple reports of funnel cloud... With reports on the ground. Location estimate by RADAR. (DMX)”
— NOAA / SPC storm report
/ Storm field report · Hamilton
Hail in Webster City · Jul 20, 2026
The estimated-size surface reached 1.75" aloft; NEXRAD logged no point detections over Webster City that day. Open it on the live map to see the swath over the streets.
A tornado was also reported to the National Weather Service during this storm. The ground reports below show where it was filed.
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Peak hail signal 1.75" ≈ golf ball · radar-estimated size aloft
Homes in the hail footprint 5,917
Ground reports 1 1 tornado
Radar surfaces 1 Estimated size only
Convective day · Jul 20, 2026 · noon–noon UTC
Severity
The most severe storm Webster City has seen in the last 12 months
Composite score · 5.0 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.0 /10
- Peak hail signal
- 44 /100
- Homes exposed
- 75 /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 Webster City saw the hail — from two instruments
Jul 20, 2026 · Webster City, IA
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.
Radar-estimated hail size Surface resolved
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.
Max size
1.75"
Only the radar-estimated size surface resolved for Jul 20, 2026 — this storm produced no NEXRAD point detections over Webster City, so there is one map to show, not two.
The storm in context
Where Jul 20, 2026 sits in Webster City's hail record.
This was Webster City's 6th recorded hail day, arriving 18 days after the Jul 2, 2026 storm. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Webster City at 1.75" — radar-estimated size aloft.
The Jul 20, 2026 convective day was bigger than Webster City: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Stanhope (7 miles south, up to 1.25"); Kamrar (8 miles east, up to 2"); Jewell (10 miles southeast, up to 1.25").
These maps are stills. In the app this date is one of 8 Webster City 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
1 report filed with the NWS
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.
Tornado reports
1 reportHigh damage potential
What 1.75" hail means for Webster City roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
5,917 homes × $12,000 avg. claim
Potential roof exposure
$71M
Potential roof exposure — 5,917 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 30 jobs
- Illustrative work
- ~$450K
Close just 0.5% of the 5,917 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
July 2028
Claims from this storm can typically be filed until around July 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 $1,243 on top of the $150 plan.
Webster City hail history
Other storms in Webster City.
8 recorded storm days in Webster City, IA
Estimated-size surface Storm date Webster City / IA
Sep 14, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Webster City / IA
Aug 12, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Webster City / IA
Jul 2, 2026
2" Signatures 2" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Webster City / IA
Jun 28, 2026
0.75" Signatures 0.75" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Webster City / IA
Jun 10, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Webster City / IA
May 15, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Webster City / IA
Apr 23, 2026
1.25" Signatures 1.25"
No ground reports filed Open report →
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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 15, 2026.