Wind gust 60 mph
3 ESE Oneida Brown County
“The wind gusted to 60 mph at Green Bay Airport Tower. (GRB)”
— NOAA / SPC storm report
/ Storm field report · Brown
Hail in Green Bay · Jun 30, 2026
NEXRAD logged 21 hail signatures up to 1.25"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.25" ≈ half-dollar · the largest NEXRAD radar signature
Homes in the hail footprint 24,599
Ground reports 1 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jun 30, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Green Bay has seen in the last 12 months
Composite score · 4.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.3 /10
- Peak hail signal
- 31 /100
- Homes exposed
- 88 /100
- Ground truth
- 17 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Green Bay saw the hail — from two instruments
Jun 30, 2026 · Green Bay, WI
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.
NEXRAD radar signatures Surface resolved
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Max size
1.25"
Detections
21
Radar-estimated hail size Surface resolved
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"
The storm in context
Where Jun 30, 2026 sits in Green Bay's hail record.
This was Green Bay's 5th recorded hail day, arriving 6 days after the Jun 24, 2026 storm. By severity it ranks 2nd of the 6 storms we have logged here. Radar put the day's largest stone over Green Bay at 1.25" — the largest NEXRAD radar signature.
The Jun 30, 2026 convective day was bigger than Green Bay: the same system put hail over 720 other tracked cities, 111 of them in Wisconsin. Nearest: De Pere (8 miles southwest, up to 1"); Oneida (10 miles west, up to 1.25"); Denmark (12 miles southeast, up to 1").
These maps are stills. In the app this date is one of 6 Green Bay 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.
Wind reports
1 reportStorm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Oneida — beyond Green Bay itself.
Damage-capable hail signal
What 1.25" hail means for Green Bay 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.
24,599 homes × $12,000 avg. claim
Potential roof exposure
$295M
Potential roof exposure — 24,599 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 123 jobs
- Illustrative work
- ~$1.8M
Close just 0.5% of the 24,599 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 $5,166 on top of the $150 plan.
Green Bay hail history
Other storms in Green Bay.
6 recorded storm days in Green Bay, WI
Estimated-size surface Storm date Green Bay / WI
Jul 1, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Green Bay / WI
Jun 24, 2026
0.75" Estimated 0.75"
4 ground reports Open report →
Estimated-size surface Storm date Green Bay / WI
Apr 14, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Green Bay / WI
Apr 13, 2026
0.5" Estimated 0.5"
3 ground reports Open report →
Estimated-size surface Storm date Green Bay / WI
Mar 30, 2026
1" Signatures 1"
1 ground report Open report →
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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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For iPhone. Android coming soon.
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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.