/ Storm field report · Clarke

Hail in Osceola · Apr 15, 2026

The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Osceola that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 625
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Apr 15, 2026 · noon–noon UTC

Severity

The 4th most severe storm Osceola has seen in the last 12 months

Composite score · 2.5 / 10
Storm severity score

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

2.5 /10
Peak hail signal
19 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
56 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Osceola saw the hail — from two instruments

Apr 15, 2026 · Osceola, 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.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Osceola, IA on Apr 15, 2026 Estimated size field

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"

Only the radar-estimated size surface resolved for Apr 15, 2026 — this storm produced no NEXRAD point detections over Osceola, so there is one map to show, not two.

The storm in context

Where Apr 15, 2026 sits in Osceola's hail record.

This was Osceola's 4th recorded hail day, arriving 12 days after the Apr 3, 2026 storm. By severity it ranks 4th of the 10 storms we have logged here. Radar put the day's largest stone over Osceola at 0.75" — radar-estimated size aloft.

The Apr 15, 2026 convective day was bigger than Osceola: the same system put hail over 425 other tracked cities, 127 of them in Iowa. Nearest: Weldon (7 miles south, up to 0.75"); Grand River (10 miles southwest, up to 1"); Ellston (15 miles southwest, up to 1").

These maps are stills. In the app this date is one of 10 Osceola 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

No reports 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.

For this storm over Osceola, 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.

Near the severe threshold

What 0.75" hail means for Osceola roofs.

A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

625 homes × $12,000 avg. claim

Potential roof exposure

$7.5M

Potential roof exposure — 625 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
3 jobs
Illustrative work
~$45K

Close just 0.5% of the 625 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

April 2028

Claims from this storm can typically be filed until around April 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 $131 on top of the $150 plan.

Osceola hail history

10 recorded storm days in Osceola, IA

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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 5, 2026.