Storm report · Winnebago

Hail in Thompson Apr 13, 2026

The radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Thompson this day.

Largest hailstone

0.5"

≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint

286

Ground reports

0

none filed
Severity

The 6th most severe storm Thompson 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.

2.0 /10
Hail size
13 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
49 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Two ways to read the storm

How Thompson saw the hail — from two instruments

Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.

Radar-estimated hail size
Radar-estimated hail-size map of the storm over Thompson, IA on Apr 13, 2026

Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.

Max size 0.5"

Only the radar-estimated size surface resolved for Apr 13, 2026 — this storm produced no NEXRAD point detections over Thompson, so there is one map to show, not two.

The storm in context

Where Apr 13, 2026 sits in Thompson's hail record

This was Thompson's 2nd recorded hail day, arriving 2 days after the Apr 11, 2026 storm. By severity it ranks 6th of the 6 storms we have logged here. Radar put the day's largest stone over Thompson at 0.5" — radar-estimated size aloft.

The Apr 13, 2026 convective day was bigger than Thompson: the same system put hail over 467 other tracked cities, 64 of them in Iowa. Nearest: Kiester (9 miles northeast, up to 1"); Frost (9 miles northwest, up to 1"); Buffalo Center (10 miles southwest, up to 1").

These maps are stills from Thompson's Apr 13, 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.

Ground reports

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 Thompson. 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.

Below the severe threshold

What 0.5" hail means for Thompson roofs

Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.

What this storm is worth to a roofer

$3.4M

Potential roof exposure — 286 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
1 job
Illustrative work
~$15K
Close just 0.5% of the 286 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.
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.

Track hail over Thompson on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Thompson storm history — this Apr 13, 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

Thompson hail history

6 recorded storm days in Thompson, IA

← All hail in Thompson

Other storms in Thompson

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.