Storm report · Winneshiek

Hail in Fort Atkinson Jun 30, 2026

Hit 34 days ago

Both radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 0", and the radar-estimated size reached 0" aloft.

Largest hailstone

0"

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

0

Ground reports

0

none filed
Severity

Fort Atkinson's only recorded storm in the last 12 months

Storm severity score

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

0.0 /10
Hail size
0 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
0 /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 Fort Atkinson 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.

NEXRAD radar signatures
NEXRAD radar-signature map of the hail storm over Fort Atkinson, IA on Jun 30, 2026

NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.

Max size 0" Detections 0
Radar-estimated hail size
Radar-estimated hail-size map of the storm over Fort Atkinson, IA on Jun 30, 2026

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 0"
The storm in context

Where Jun 30, 2026 sits in Fort Atkinson's hail record

This was Fort Atkinson's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 1 storms we have logged here. Radar put the day's largest stone over Fort Atkinson at 0" — radar-estimated size aloft.

The Jun 30, 2026 convective day was bigger than Fort Atkinson: the same system put hail over 720 other tracked cities, 85 of them in Iowa. Nearest: Calmar (5 miles east, up to 1"); Cresco (12 miles northwest, up to 0"); Lime Springs (20 miles northwest, up to 0").

These maps are stills from Fort Atkinson's Jun 30, 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 Fort Atkinson. 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" hail means for Fort Atkinson 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.

Track hail over Fort Atkinson on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Fort Atkinson storm history — this Jun 30, 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

Fort Atkinson hail history

1 recorded storm day in Fort Atkinson, IA

← All hail in Fort Atkinson
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.