/ Storm field report · Dane

Hail in Blue Mounds · Apr 14, 2026

The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Blue Mounds 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 2,774

Ground reports 1 1 hail

Radar surfaces 1 Estimated size only

Convective day · Apr 14, 2026 · noon–noon UTC

Severity

Blue Mounds's only recorded storm in the last 12 months

Composite score · 3.1 / 10

Storm severity score

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

3.1 /10

Peak hail signal: 19 /100
Homes exposed: 69 /100
Ground truth: 17 /100

Evidence / storm surfaces

How Blue Mounds saw the hail — from two instruments

Apr 14, 2026 · Blue Mounds, WI

The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.

Radar-estimated hail-size map of the storm over Blue Mounds, WI on Apr 14, 2026 — The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.

Max size 0.75"

Only the radar-estimated size surface resolved for Apr 14, 2026 — this storm produced no NEXRAD point detections over Blue Mounds, so there is one map to show, not two.

The storm in context

Where Apr 14, 2026 sits in Blue Mounds's hail record.

This was Blue Mounds'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 Blue Mounds at 0.75" — radar-estimated size aloft.

The Apr 14, 2026 convective day was bigger than Blue Mounds: the same system put hail over 476 other tracked cities, 94 of them in Wisconsin. Nearest: Black Earth (9 miles northeast, up to 1.75"); Barneveld (9 miles northwest, up to 1.5"); Mount Horeb (9 miles southeast, up to 1.25").

These maps are stills. In the app this date is one of 1 Blue Mounds storm date 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

1 report 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.

Hail reports

1 report

Hail size 1"

2 NE Blue Mounds Dane County

9:34 PM UTC

“Report from mPING: Quarter (1.00 in.). (MKX)”
— NOAA / SPC storm report

Near the severe threshold

What 0.75" hail means for Blue Mounds 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.

2,774 homes × $12,000 avg. claim

Potential roof exposure

$33M

Potential roof exposure — 2,774 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs: 14 jobs
Illustrative work: ~$210K

Close just 0.5% of the 2,774 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 $583 on top of the $150 plan.

Blue Mounds hail history

1 recorded storm day in Blue Mounds, WI

← All hail in Blue Mounds

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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 2, 2026.