/ Storm field report · Jackson

Hail in Black River Falls · Jul 1, 2026

NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0.5" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.5" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 56
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Jul 1, 2026 · noon–noon UTC

Severity

The 11th most severe storm Black River Falls has seen in the last 12 months

Composite score · 1.6 / 10
Storm severity score

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

1.6 /10
Peak hail signal
13 /100

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

Homes exposed
35 /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 Black River Falls saw the hail — from two instruments

Jul 1, 2026 · Black River Falls, 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 Black River Falls, WI on Jul 1, 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" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Black River Falls, WI on Jul 1, 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 0.5"

The storm in context

Where Jul 1, 2026 sits in Black River Falls's hail record.

This was Black River Falls's 11th recorded hail day, arriving 1 day after the Jun 30, 2026 storm. By severity it ranks 11th of the 12 storms we have logged here. Radar put the day's largest stone over Black River Falls at 0.5" — radar-estimated size aloft.

The Jul 1, 2026 convective day was bigger than Black River Falls: the same system put hail over 1,147 other tracked cities, 101 of them in Wisconsin. Nearest: Alma Center (13 miles northwest, up to 0.5"); Sparta (17 miles south, up to 1"); Warrens (18 miles east, up to 1").

These maps are stills. In the app this date is one of 12 Black River Falls 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.

No ground reports were filed with the National Weather Service for this storm over Black River Falls. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.

Below the severe threshold

What 0.5" hail means for Black River Falls roofs.

Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

56 homes × $12,000 avg. claim

Potential roof exposure

$672K

Potential roof exposure — 56 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Claim window

July 2028

Claims from this storm can typically be filed until around July 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 $12 on top of the $150 plan.

Black River Falls hail history

12 recorded storm days in Black River Falls, WI
Radar-estimated hail-size map of the storm over Black River Falls, WI on Sep 1, 2026 Estimated-size surface
Storm date Black River Falls / WI

Sep 1, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Jun 30, 2026 Estimated-size surface
Storm date Black River Falls / WI

Jun 30, 2026

1.75"
Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Jun 10, 2026 Estimated-size surface
Storm date Black River Falls / WI

Jun 10, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Jun 9, 2026 Estimated-size surface
Storm date Black River Falls / WI

Jun 9, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on May 27, 2026 Estimated-size surface
Storm date Black River Falls / WI

May 27, 2026

1"
Signatures 1" Estimated 0.5"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on May 18, 2026 Estimated-size surface
Storm date Black River Falls / WI

May 18, 2026

0.75"
Signatures 0.75" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on May 17, 2026 Estimated-size surface
Storm date Black River Falls / WI

May 17, 2026

1.75"
Signatures 1.75" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Apr 17, 2026 Estimated-size surface
Storm date Black River Falls / WI

Apr 17, 2026

3"
Signatures 3" Estimated 1.25"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Apr 14, 2026 Estimated-size surface
Storm date Black River Falls / WI

Apr 14, 2026

2"
Estimated 2"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Apr 13, 2026 Estimated-size surface
Storm date Black River Falls / WI

Apr 13, 2026

1.75"
Signatures 1.75" Estimated 1.25"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Black River Falls, WI on Mar 30, 2026 Estimated-size surface
Storm date Black River Falls / WI

Mar 30, 2026

1.75"
Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →

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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 2, 2026.