Hail in Waterloo Jul 26, 2026
Hit 8 days agoNEXRAD caught this storm: 5 hail signatures up to 0.75". The radar-estimated size surface had no signal to model this day.
0.75"
≈ penny to nickel · the largest NEXRAD radar signature189
0
none filedThe 5th most severe storm Waterloo 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
- 19 /100
- Homes exposed
- 46 /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 Waterloo 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.
Only the NEXRAD radar-signature surface resolved for Jul 26, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where Jul 26, 2026 sits in Waterloo's hail record
This was Waterloo's 5th recorded hail day, arriving 24 days after the Jul 2, 2026 storm. By severity it ranks 5th of the 5 storms we have logged here. Radar put the day's largest stone over Waterloo at 0.75" — the largest NEXRAD radar signature.
The Jul 26, 2026 convective day was bigger than Waterloo: the same system put hail over 351 other tracked cities, 12 of them in Iowa. Nearest: Cedar Falls (17 miles northwest, up to 0.75"); New Hartford (22 miles west, up to 0.75"); Parkersburg (26 miles west, up to 1").
These maps are stills from Waterloo's Jul 26, 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 Waterloo, 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 0.75" hail means for Waterloo roofs
Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.
$2.3M
Potential roof exposure — 189 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Waterloo on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Waterloo storm history — this Jul 26, 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 Waterloo, IA
Other storms in Waterloo
Jul 2, 2026
1.75"
Jun 28, 2026
1.5"
Apr 17, 2026
1"
Apr 14, 2026
2"