/ Storm field report · St. Lawrence

Hail in Canton · Sep 25, 2026

Hit 6 days ago

The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Canton that day. 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 13
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Sep 25, 2026 · noon–noon UTC

Severity

The 12th most severe storm Canton has seen in the last 12 months

Composite score · 1.3 / 10
Storm severity score

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

1.3 /10
Peak hail signal
13 /100

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

Homes exposed
23 /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 Canton saw the hail — from two instruments

Sep 25, 2026 · Canton, NY

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 Canton, NY on Sep 25, 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 0.5"

Only the radar-estimated size surface resolved for Sep 25, 2026 — this storm produced no NEXRAD point detections over Canton, so there is one map to show, not two.

The storm in context

Where Sep 25, 2026 sits in Canton's hail record.

This was Canton's 14th recorded hail day, arriving 24 days after the Sep 1, 2026 storm. By severity it ranks 12th of the 14 storms we have logged here. Radar put the day's largest stone over Canton at 0.5" — radar-estimated size aloft.

The Sep 25, 2026 convective day was bigger than Canton: the same system put hail over 27 other tracked cities. Nearest: Haviland (1338 miles west, up to 0.5"); Bennett (1533 miles west, up to 1.5"); Hudson (1538 miles west, up to 0.5").

These maps are stills. In the app this date is one of 14 Canton 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 Canton, 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.

Below the severe threshold

What 0.5" hail means for Canton 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.

13 homes × $12,000 avg. claim

Potential roof exposure

$156K

Potential roof exposure — 13 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Claim window

September 2028

Claims from this storm can typically be filed until around September 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 $3 on top of the $150 plan.

Canton hail history

14 recorded storm days in Canton, NY
Radar-estimated hail-size map of the storm over Canton, NY on Sep 1, 2026 Estimated-size surface
Storm date Canton / NY

Sep 1, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Aug 10, 2026 Estimated-size surface
Storm date Canton / NY

Aug 10, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Jul 29, 2026 Estimated-size surface
Storm date Canton / NY

Jul 29, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Jul 18, 2026 Estimated-size surface
Storm date Canton / NY

Jul 18, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Jul 15, 2026 Estimated-size surface
Storm date Canton / NY

Jul 15, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on May 11, 2026 Estimated-size surface
Storm date Canton / NY

May 11, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Apr 14, 2026 Estimated-size surface
Storm date Canton / NY

Apr 14, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Mar 26, 2026 Estimated-size surface
Storm date Canton / NY

Mar 26, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Mar 15, 2026 Estimated-size surface
Storm date Canton / NY

Mar 15, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Feb 26, 2026 Estimated-size surface
Storm date Canton / NY

Feb 26, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Feb 25, 2026 Estimated-size surface
Storm date Canton / NY

Feb 25, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Feb 20, 2026 Estimated-size surface
Storm date Canton / NY

Feb 20, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Canton, NY on Feb 11, 2026 Estimated-size surface
Storm date Canton / NY

Feb 11, 2026

0.5"
Estimated 0.5"
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 26, 2026.