/ Storm field report · Tooele

Hail in Grantsville · Jul 24, 2026

The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Grantsville 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 2
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · Jul 24, 2026 · noon–noon UTC

Severity

The 3rd most severe storm Grantsville has seen in the last 12 months

Composite score · 1.0 / 10
Storm severity score

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

1.0 /10
Peak hail signal
13 /100

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

Homes exposed
10 /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 Grantsville saw the hail — from two instruments

Jul 24, 2026 · Grantsville, UT

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-estimated hail size Surface resolved
Map image is still rendering for this surface.

Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.

Max size 0.5"

Only the radar-estimated size surface resolved for Jul 24, 2026 — this storm produced no NEXRAD point detections over Grantsville, so there is one map to show, not two.

The storm in context

Where Jul 24, 2026 sits in Grantsville's hail record.

This was Grantsville's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 3rd of the 3 storms we have logged here. Radar put the day's largest stone over Grantsville at 0.5" — radar-estimated size aloft.

The Jul 24, 2026 convective day was bigger than Grantsville: the same system put hail over 221 other tracked cities, 4 of them in Utah. Nearest: Rockland (139 miles north, up to 1"); Burley (152 miles northwest, up to 0.5"); American Falls (163 miles north, up to 1").

These maps are stills. In the app this date is one of 3 Grantsville 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.

No ground reports were filed with the National Weather Service for this storm over Grantsville. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.

Below the severe threshold

What 0.5" hail means for Grantsville 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.

2 homes × $12,000 avg. claim

Potential roof exposure

$24K

Potential roof exposure — 2 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

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 $0 on top of the $150 plan.

Grantsville hail history

3 recorded storm days in Grantsville, UT

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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 19, 2026.