Hail size 1"
3 NNE Simcoe McHenry County
“Also reported 60 mph wind gusts. (BIS)”
— NOAA / SPC storm report
/ Storm field report · McHenry
Hail in Granville · Jun 29, 2026
NEXRAD logged 9 hail signatures up to 3.5"; the estimated-size surface reached 2" aloft. At 3.5" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 3.5" ≈ baseball · the largest NEXRAD radar signature
Homes in the hail footprint 79
Ground reports 2 2 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jun 29, 2026 · noon–noon UTC
Severity
The most severe storm Granville has seen in the last 12 months
Composite score · 6.7 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.7 /10
- Peak hail signal
- 88 /100
- Homes exposed
- 38 /100
- Ground truth
- 33 /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 Granville saw the hail — from two instruments
Jun 29, 2026 · Granville, ND
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
NEXRAD radar signatures Surface resolved
Radar signature field NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Max size
3.5"
Detections
9
Radar-estimated hail size Surface resolved
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
2"
The storm in context
Where Jun 29, 2026 sits in Granville's hail record.
This was Granville's 3rd recorded hail day, arriving 27 days after the Jun 2, 2026 storm. By severity it ranks 1st of the 6 storms we have logged here. Radar put the day's largest stone over Granville at 3.5" — the largest NEXRAD radar signature.
The Jun 29, 2026 convective day was bigger than Granville: the same system put hail over 702 other tracked cities, 96 of them in North Dakota. Nearest: Norwich (5 miles west, up to 0.5"); Velva (14 miles south, up to 4"); Sawyer (17 miles southwest, up to 4").
These maps are stills. In the app this date is one of 6 Granville 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
2 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.
Hail reports
2 reports Hail size 1.25"
3 NNE Simcoe McHenry County
“[Delayed Report] Broadcast media relayed a photo of a hailstone larger than a quarter placed as a point of comparison... taken 5 miles south of Granville. Time estimate (BIS)”
— NOAA / SPC storm report
Storm 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 Simcoe — beyond Granville itself.
Severe hail signal
What 3.5" hail means for Granville roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
79 homes × $12,000 avg. claim
Potential roof exposure
$948K
Potential roof exposure — 79 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
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 $17 on top of the $150 plan.
Granville hail history
Other storms in Granville.
6 recorded storm days in Granville, ND
Estimated-size surface Storm date Granville / ND
Sep 7, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Granville / ND
Sep 3, 2026
1.25" Estimated 1.25"
1 ground report Open report →
Estimated-size surface Storm date Granville / ND
Sep 2, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Granville / ND
Jun 2, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Granville / ND
Jan 2, 2026
2.25" Estimated 2.25"
No ground reports filed Open report →
The next storm won’t wait for you.
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 Sep 8, 2026.