Hail in Iowa City Mar 30, 2026
Both radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.75" aloft.
1"
≈ quarter · the largest NEXRAD radar signature17,563
0
none filedThe 5th most severe storm Iowa City 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
- 85 /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 Iowa City saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Where Mar 30, 2026 sits in Iowa City's hail record
This was Iowa City's 3rd recorded hail day, arriving 15 days after the Mar 15, 2026 storm. By severity it ranks 5th of the 10 storms we have logged here. Radar put the day's largest stone over Iowa City at 1" — the largest NEXRAD radar signature.
The Mar 30, 2026 convective day was bigger than Iowa City: the same system put hail over 313 other tracked cities, 78 of them in Iowa. Nearest: Coralville (5 miles west, up to 1"); West Branch (10 miles east, up to 1"); Tiffin (10 miles west, up to 1").
These maps are stills from Iowa City's Mar 30, 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.
The National Weather Service logged no spotter reports for this storm over Iowa City. 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.
What 1" hail means for Iowa City 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.
$211M
Potential roof exposure — 17,563 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Iowa City on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Iowa City storm history — this Mar 30, 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
10 recorded storm days in Iowa City, IA
Other storms in Iowa City
Jul 8, 2026
0.5"
Jul 3, 2026
1.75"
Jun 17, 2026
0.5"
Jun 10, 2026
0.75"
Apr 14, 2026
0.5"
Apr 2, 2026
3"
Mar 31, 2026
1.5"
Mar 15, 2026
0.75"
Mar 10, 2026
1.75"