Hail size 1"
Iowa City Johnson County
“10 minutes of quarter size hail. Hail is covering the ground. (DVN)”
— NOAA / SPC storm report
Hail in Iowa City Mar 10, 2026
The radar-estimated size surface caught this storm, reaching 1.75" aloft. NEXRAD logged no point detections over Iowa City this day.
Largest hailstone
1.75"
≈ golf ball · radar-estimated size aloft Homes in the hail footprint
16,177
Ground reports
10
10 hailThe 2nd most severe storm Iowa City has seen in the last 12 months
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.2 /10
- Hail size
- 44 /100
- Homes exposed
- 84 /100
- Ground truth
- 100 /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
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
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 Mar 10, 2026 — this storm produced no NEXRAD point detections over Iowa City, so there is one map to show, not two.
Where Mar 10, 2026 sits in Iowa City's hail record
This was Iowa City's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 2nd of the 10 storms we have logged here. Radar put the day's largest stone over Iowa City at 1.75" — radar-estimated size aloft.
The Mar 10, 2026 convective day was bigger than Iowa City: the same system put hail over 470 other tracked cities, 47 of them in Iowa. Nearest: Solon (7 miles north, up to 0.5"); West Branch (10 miles east, up to 1.5"); Ely (14 miles north, up to 0.5").
These maps are stills from Iowa City's Mar 10, 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.
Hail reports
10 reports Hail size 1.25"
2 SE Iowa City Johnson County
“Occurring right now. (DVN)”
— NOAA / SPC storm report
Hail size 1.5"
2 SE Iowa City Johnson County
“Size increased since last report. (DVN)”
— NOAA / SPC storm report
Hail size 1"
1 E Iowa City Municipal Johnson County
“Delayed report. Marble to quarter sized hail. (DVN)”
— NOAA / SPC storm report
Hail size 1"
1 ESE Iowa City Johnson County
“Delayed report. (DVN)”
— NOAA / SPC storm report
Hail size 1"
1 E Iowa City Johnson County
“Report from mPING: Quarter (1.00 in.). (DVN)”
— NOAA / SPC storm report
Hail size 1.25"
2 SE Iowa City Johnson County
“Report from mPING: Half Dollar (1.25 in.). (DVN)”
— NOAA / SPC storm report
Hail size 1"
2 SE Iowa City Johnson County
“(DVN)”
— NOAA / SPC storm report
Hail size 2.75"
3 SW West Branch Johnson County
“(DVN)”
— NOAA / SPC storm report
Hail size 2.5"
3 W Iowa City Municipal Johnson County
“(DVN)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
Hail was reported over 19 minutes, from to .
Reports came from Iowa City Municipal and West Branch — beyond Iowa City itself.
What 1.75" hail means for Iowa City roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
What this storm is worth to a roofer
$194M
Potential roof exposure — 16,177 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
81 jobs
Illustrative work
~$1.2M
Claims from this storm can typically be filed until around March 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
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 10, 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
Iowa City hail history
← All hail in Iowa City 10 recorded storm days in Iowa City, IA
Other storms in Iowa City
Jul 8, 2026
0.5" Estimated 0.5"
No ground reports filed 
Jul 3, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed 
Jun 17, 2026
0.5" Estimated 0.5"
No ground reports filed 
Jun 10, 2026
0.75" Estimated 0.75"
1
ground report 
Apr 14, 2026
0.5" Estimated 0.5"
5
ground reports 
Apr 2, 2026
3" Signatures 3" Estimated 1.25"
2
ground reports 
Mar 31, 2026
1.5" Signatures 1.5"
No ground reports filed 
Mar 30, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed 
Mar 15, 2026
0.75" Signatures 0.75"
No ground reports filed
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 surfaces are detections and estimates,
not confirmed damage. Last updated Aug 3, 2026.