Hail size 1.25"
Oquawka Henderson County
“Passed along by broadcast media. (DVN)”
— NOAA / SPC storm report
Hail in Oakville Mar 31, 2026
Both radar surfaces caught this storm: NEXRAD logged 12 hail signatures up to 1.5", and the radar-estimated size reached 0.75" aloft.
Largest hailstone
1.5"
≈ ping-pong ball · the largest NEXRAD radar signature Homes in the hail footprint
464
Ground reports
1
1 hailThe 3rd most severe storm Oakville 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.
3.8 /10
- Hail size
- 38 /100
- Homes exposed
- 53 /100
- Ground truth
- 17 /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 Oakville saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
NEXRAD radar signatures
NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Max size
1.5"
Detections
12
Radar-estimated hail size
Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Max size
0.75"
Where Mar 31, 2026 sits in Oakville's hail record
This was Oakville's 4th recorded hail day, arriving 1 day after the Mar 30, 2026 storm. By severity it ranks 3rd of the 8 storms we have logged here. Radar put the day's largest stone over Oakville at 1.5" — the largest NEXRAD radar signature.
The Mar 31, 2026 convective day was bigger than Oakville: the same system put hail over 522 other tracked cities, 24 of them in Iowa. Nearest: Oquawka (5 miles east, up to 1.75"); Mediapolis (10 miles west, up to 0.75"); Kirkwood (13 miles southeast, up to 2").
These maps are stills from Oakville's Mar 31, 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
1 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
Reports came from Oquawka — beyond Oakville itself.
What 1.5" hail means for Oakville 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
$5.6M
Potential roof exposure — 464 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
2 jobs
Illustrative work
~$30K
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 Oakville on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Oakville storm history — this Mar 31, 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
Oakville hail history
← All hail in Oakville 8 recorded storm days in Oakville, IA
Other storms in Oakville
Jun 11, 2026
0.75" Estimated 0.75"
No ground reports filed 
May 15, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
May 4, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed 
Apr 2, 2026
1.25" Signatures 1.25" Estimated 0.5"
No ground reports filed 
Mar 30, 2026
1" Signatures 1"
No ground reports filed 
Mar 26, 2026
Mar 10, 2026
1.5" Estimated 1.5"
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 2, 2026.