/ Storm field report · Grafton

Hail in Grafton · Jul 2, 2026

NEXRAD logged 6 hail signatures up to 1"; 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 1" ≈ quarter · the largest NEXRAD radar signature
Homes in the hail footprint 471
Ground reports 1 1 hail
Radar surfaces 2 NEXRAD + estimated size

Convective day · Jul 2, 2026 · noon–noon UTC

Severity

Grafton's only recorded storm in the last 12 months

Composite score · 3.1 / 10
Storm severity score

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

3.1 /10
Peak hail signal
25 /100

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

Homes exposed
53 /100

How many homes sit inside the storm's footprint.

Ground truth
17 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Grafton saw the hail — from two instruments

Jul 2, 2026 · Grafton, NH

The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Grafton, NH on Jul 2, 2026 Radar signature field

Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.

Max size 1" Detections 6
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Grafton, NH on Jul 2, 2026 Estimated size field

The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.

Max size 0.5"

The storm in context

Where Jul 2, 2026 sits in Grafton's hail record.

This was Grafton's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 1 storms we have logged here. Radar put the day's largest stone over Grafton at 1" — the largest NEXRAD radar signature.

The Jul 2, 2026 convective day was bigger than Grafton: the same system put hail over 1,147 other tracked cities, 1 of them in New Hampshire. Nearest: Canaan (9 miles northwest, up to 1"); Monson (105 miles south, up to 0"); Canaan (109 miles southwest, up to 1").

These maps are stills. In the app this date is one of 1 Grafton storm date 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.

Hail reports

1 report
Hail size 1"
3 S Orange Grafton County

“One-inch hailstones at Tewksbury Pond boat launch. Hail fell for ~5-6 mins. No damage noted. (GYX)”

— 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 Orange — beyond Grafton itself.

Damage-capable hail signal

What 1" hail means for Grafton 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.

471 homes × $12,000 avg. claim

Potential roof exposure

$5.7M

Potential roof exposure — 471 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
2 jobs
Illustrative work
~$30K

Close just 0.5% of the 471 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

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 $99 on top of the $150 plan.

Grafton hail history

1 recorded storm day in Grafton, NH

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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.