/ Storm field report · Kandiyohi

Hail in Atwater · Aug 7, 2026

Hit 36 days ago

The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Atwater 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 1,887
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Aug 7, 2026 · noon–noon UTC

Severity

The 2nd most severe storm Atwater has seen 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
25 /100

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

Homes exposed
66 /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 Atwater saw the hail — from two instruments

Aug 7, 2026 · Atwater, 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 Atwater, MN on Aug 7, 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 1"

Only the radar-estimated size surface resolved for Aug 7, 2026 — this storm produced no NEXRAD point detections over Atwater, so there is one map to show, not two.

The storm in context

Where Aug 7, 2026 sits in Atwater's hail record.

This was Atwater's 3rd recorded hail day, arriving 13 days after the Jul 25, 2026 storm. By severity it ranks 2nd of the 3 storms we have logged here. Radar put the day's largest stone over Atwater at 1" — radar-estimated size aloft.

The Aug 7, 2026 convective day was bigger than Atwater: the same system put hail over 709 other tracked cities, 88 of them in Minnesota. Nearest: Grove City (6 miles southeast, up to 1.5"); Spicer (6 miles northwest, up to 1"); Willmar (10 miles west, up to 0.5").

These maps are stills. In the app this date is one of 3 Atwater 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 Atwater, 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.

Damage-capable hail signal

What 1" hail means for Atwater 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.

1,887 homes × $12,000 avg. claim

Potential roof exposure

$23M

Potential roof exposure — 1,887 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
9 jobs
Illustrative work
~$135K

Close just 0.5% of the 1,887 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

August 2028

Claims from this storm can typically be filed until around August 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 $396 on top of the $150 plan.

Atwater hail history

3 recorded storm days in Atwater, MN

Take your next area into the field.

See the hail, review your recommendations, and canvass with Overview on iPhone.

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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.