/ Storm field report · Kandiyohi

Hail in Willmar · Jun 23, 2026

The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Willmar 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 6,034
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only

Convective day · Jun 23, 2026 · noon–noon UTC

Severity

The most severe storm Willmar has seen in the last 12 months

Composite score · 3.3 / 10
Storm severity score

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

3.3 /10
Peak hail signal
19 /100

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

Homes exposed
76 /100

How many homes sit inside the storm's footprint.

Ground truth
17 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Willmar saw the hail — from two instruments

Jun 23, 2026 · Willmar, MN

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 Surface resolved
Radar-estimated hail-size map of the storm over Willmar, MN on Jun 23, 2026 Estimated size field

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 0.75"

Only the radar-estimated size surface resolved for Jun 23, 2026 — this storm produced no NEXRAD point detections over Willmar, so there is one map to show, not two.

The storm in context

Where Jun 23, 2026 sits in Willmar's hail record.

This was Willmar's 2nd recorded hail day, arriving 30 days after the May 24, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Willmar at 0.75" — radar-estimated size aloft.

The Jun 23, 2026 convective day was bigger than Willmar: the same system put hail over 330 other tracked cities, 47 of them in Minnesota. Nearest: Lake Lillian (15 miles south, up to 1"); Kerkhoven (16 miles northwest, up to 0.5"); Cosmos (20 miles southeast, up to 1").

These maps are stills. In the app this date is one of 5 Willmar 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

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"
Willmar Kandiyohi County

“(MPX)”

— NOAA / SPC storm report

Near the severe threshold

What 0.75" hail means for Willmar 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.

6,034 homes × $12,000 avg. claim

Potential roof exposure

$72M

Potential roof exposure — 6,034 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
30 jobs
Illustrative work
~$450K

Close just 0.5% of the 6,034 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

June 2028

Claims from this storm can typically be filed until around June 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 $1,267 on top of the $150 plan.

Willmar hail history

5 recorded storm days in Willmar, MN

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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 8, 2026.