/ Storm field report · Des Moines

Hail in Oakville · Mar 31, 2026

NEXRAD logged 12 hail signatures up to 1.5"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 1.5" ≈ ping-pong ball · the largest NEXRAD radar signature

Homes in the hail footprint 464

Ground reports 1 1 hail

Radar surfaces 2 NEXRAD + estimated size

Convective day · Mar 31, 2026 · noon–noon UTC

Severity

The 3rd most severe storm Oakville has seen in the last 12 months

Composite score · 3.8 / 10

Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

3.8 /10

Peak hail signal: 38 /100
Homes exposed: 53 /100
Ground truth: 17 /100

Evidence / storm surfaces

How Oakville saw the hail — from two instruments

Mar 31, 2026 · Oakville, IA

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-signature map of the hail storm over Oakville, IA on Mar 31, 2026 — 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 map of the storm over Oakville, IA on Mar 31, 2026 — 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"

The storm in context

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 10 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"); Burlington (9 miles southwest, up to 1"); Mediapolis (10 miles west, up to 0.75").

These maps are stills. In the app this date is one of 10 Oakville storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.

Ground reports

What people on the ground reported

1 report filed with the NWS

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

Hail size 1.25"

Oquawka Henderson County

12:40 PM UTC

“Passed along by broadcast media. (DVN)”
— NOAA / SPC storm report

Storm forensics

How the storm moved

Timing and place names from NOAA ground reports

Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.

Reports came from Oquawka — beyond Oakville itself.

High damage potential

What 1.5" hail means for Oakville roofs.

Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

464 homes × $12,000 avg. claim

Potential roof exposure

$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

Close just 0.5% of the 464 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.

Claim window

March 2028

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.

Names and phones for every home in the footprint: at most $97 on top of the $150 plan.

Oakville hail history

10 recorded storm days in Oakville, IA

← All hail in Oakville

Radar-estimated hail-size map of the storm over Oakville, IA on Aug 13, 2026

Estimated-size surface

Storm date Oakville / IA

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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.

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Open this storm on the live map → Start free trial

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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 14, 2026.

The 3rd most severe storm Oakville has seen in the last 12 months

How Oakville saw the hail — from two instruments

Where Mar 31, 2026 sits in Oakville's hail record.

What people on the ground reported

Hail reports

How the storm moved

What 1.5" hail means for Oakville roofs.

What this storm is worth to a roofer.

Other storms in Oakville.

Aug 13, 2026

Aug 12, 2026

Jun 11, 2026

May 15, 2026

May 4, 2026

Apr 2, 2026

Mar 30, 2026

Mar 26, 2026

Mar 10, 2026

The next storm won’t wait for you.