/ Storm field report · Outagamie

Hail in Appleton · Mar 31, 2026

NEXRAD logged 4 hail signatures up to 0.75"; the estimated-size surface had no signal 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 · the largest NEXRAD radar signature
Homes in the hail footprint 6,918
Ground reports 0 none filed
Radar surfaces 1 NEXRAD only

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

Severity

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

Composite score · 3.0 / 10
Storm severity score

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

3.0 /10
Peak hail signal
19 /100

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

Homes exposed
77 /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 Appleton saw the hail — from two instruments

Mar 31, 2026 · Appleton, 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.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Appleton, WI on Mar 31, 2026 Radar signature field

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 0.75" Detections 4

Only the NEXRAD radar-signature surface resolved for Mar 31, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.

The storm in context

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

This was Appleton's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 4th of the 4 storms we have logged here. Radar put the day's largest stone over Appleton at 0.75" — the largest NEXRAD radar signature.

The Mar 31, 2026 convective day was bigger than Appleton: the same system put hail over 522 other tracked cities, 92 of them in Wisconsin. Nearest: Greenville (6 miles southwest, up to 0.5"); Kaukauna (7 miles east, up to 1"); Neenah (11 miles southwest, up to 0.75").

These maps are stills. In the app this date is one of 4 Appleton 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 Appleton, 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 Appleton 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.

6,918 homes × $12,000 avg. claim

Potential roof exposure

$83M

Potential roof exposure — 6,918 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
35 jobs
Illustrative work
~$525K

Close just 0.5% of the 6,918 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 $1,453 on top of the $150 plan.

Appleton hail history

4 recorded storm days in Appleton, WI

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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 3, 2026.