/ Storm field report · Portage

Hail in Amherst Junction · Sep 3, 2026

Hit 11 days ago

The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Amherst Junction that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 1" ≈ quarter · radar-estimated size aloft
Homes in the hail footprint 2,694
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Sep 3, 2026 · noon–noon UTC

Severity

The 2nd most severe storm Amherst Junction has seen in the last 12 months

Composite score · 3.2 / 10
Storm severity score

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

3.2 /10
Peak hail signal
25 /100

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

Homes exposed
69 /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 Amherst Junction saw the hail — from two instruments

Sep 3, 2026 · Amherst Junction, WI

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 Amherst Junction, WI on Sep 3, 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 1"

Only the radar-estimated size surface resolved for Sep 3, 2026 — this storm produced no NEXRAD point detections over Amherst Junction, so there is one map to show, not two.

The storm in context

Where Sep 3, 2026 sits in Amherst Junction's hail record.

This was Amherst Junction's 2nd recorded hail day, arriving 143 days after the Apr 13, 2026 storm. By severity it ranks 2nd of the 2 storms we have logged here. Radar put the day's largest stone over Amherst Junction at 1" — radar-estimated size aloft.

The Sep 3, 2026 convective day was bigger than Amherst Junction: the same system put hail over 494 other tracked cities, 71 of them in Wisconsin. Nearest: Custer (5 miles west, up to 1"); Amherst (7 miles south, up to 1.75"); Rosholt (8 miles northwest, up to 1").

These maps are stills. In the app this date is one of 2 Amherst Junction 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.

Nobody on the ground filed a report over Amherst Junction for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.

Damage-capable hail signal

What 1" hail means for Amherst Junction roofs.

Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

2,694 homes × $12,000 avg. claim

Potential roof exposure

$32M

Potential roof exposure — 2,694 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
13 jobs
Illustrative work
~$195K

Close just 0.5% of the 2,694 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

September 2028

Claims from this storm can typically be filed until around September 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 $566 on top of the $150 plan.

Amherst Junction hail history

2 recorded storm days in Amherst Junction, WI

Take your next area into the field.

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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 Sep 4, 2026.