Hail in Clinton May 17, 2026
Both radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.5" aloft.
1"
≈ quarter · the largest NEXRAD radar signature2,474
0
none filedThe 4th most severe storm Clinton has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 68 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Clinton 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.
NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Where May 17, 2026 sits in Clinton's hail record
This was Clinton's 3rd recorded hail day, arriving 34 days after the Apr 13, 2026 storm. By severity it ranks 4th of the 5 storms we have logged here. Radar put the day's largest stone over Clinton at 1" — the largest NEXRAD radar signature.
The May 17, 2026 convective day was bigger than Clinton: the same system put hail over 894 other tracked cities, 139 of them in Iowa. Nearest: Camanche (11 miles south, up to 1"); Thomson (13 miles east, up to 1"); Mount Carroll (16 miles northeast, up to 1").
These maps are stills from Clinton's May 17, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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 Clinton, 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.
What 1" hail means for Clinton roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$30M
Potential roof exposure — 2,474 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Clinton on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Clinton storm history — this May 17, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
5 recorded storm days in Clinton, IA
Other storms in Clinton
Jul 27, 2026
0.5"
Jul 3, 2026
1.5"
Apr 13, 2026
1.5"
Apr 2, 2026
2.25"