Hail in Marcellus · May 4, 2026
NEXRAD logged 1 hail signature up to 0.5"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
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Convective day · May 4, 2026 · noon–noon UTC
Severity
The 6th most severe storm Marcellus has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 13 /100
- Homes exposed
- 30 /100
- Ground truth
- 0 /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 Marcellus saw the hail — from two instruments
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.
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.
Only the NEXRAD radar-signature surface resolved for May 4, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where May 4, 2026 sits in Marcellus's hail record.
This was Marcellus's 2nd recorded hail day, arriving 12 days after the Apr 22, 2026 storm. By severity it ranks 6th of the 6 storms we have logged here. Radar put the day's largest stone over Marcellus at 0.5" — the largest NEXRAD radar signature.
The May 4, 2026 convective day was bigger than Marcellus: the same system put hail over 428 other tracked cities, 18 of them in Michigan. Nearest: Three Rivers (15 miles east, up to 1"); Sturgis (27 miles southeast, up to 1"); Mill Creek (45 miles southwest, up to 1").
These maps are stills. In the app this date is one of 6 Marcellus 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
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.
Nobody on the ground filed a report over Marcellus for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
Below the severe threshold
What 0.5" hail means for Marcellus 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.
Potential roof exposure
$384K
Potential roof exposure — 32 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
May 2028
Claims from this storm can typically be filed until around May 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 $7 on top of the $150 plan.
Marcellus hail history
Other storms in Marcellus.
Estimated-size surface Sep 4, 2026
0.5"
Estimated-size surface Aug 10, 2026
0.5"
Estimated-size surface Jul 27, 2026
1"
Estimated-size surface Jul 3, 2026
1"
Estimated-size surface Apr 22, 2026
0.5"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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