/ Storm field report · Hand

Hail in Saint Lawrence · Jun 28, 2026

NEXRAD logged 1 hail signature up to 2.5"; the estimated-size surface reached 1.75" aloft. At 2.5" — 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 2.5" ≈ baseball · the largest NEXRAD radar signature
Homes in the hail footprint 1
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Jun 28, 2026 · noon–noon UTC

Severity

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

Composite score · 3.9 / 10
Storm severity score

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

3.9 /10
Peak hail signal
63 /100

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

Homes exposed
6 /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 Saint Lawrence saw the hail — from two instruments

Jun 28, 2026 · Saint Lawrence, SD

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 Saint Lawrence, SD on Jun 28, 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 2.5" Detections 1
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Saint Lawrence, SD on Jun 28, 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 1.75"

The storm in context

Where Jun 28, 2026 sits in Saint Lawrence's hail record.

This was Saint Lawrence's 5th recorded hail day, arriving 1 day after the Jun 27, 2026 storm. By severity it ranks 3rd of the 11 storms we have logged here. Radar put the day's largest stone over Saint Lawrence at 2.5" — the largest NEXRAD radar signature.

The Jun 28, 2026 convective day was bigger than Saint Lawrence: the same system put hail over 348 other tracked cities, 42 of them in South Dakota. Nearest: Ree Heights (22 miles southwest, up to 2.5"); Tulare (23 miles northeast, up to 2.5"); Miller (26 miles northwest, up to 2.5").

These maps are stills. In the app this date is one of 11 Saint Lawrence 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 Saint Lawrence, 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.

Severe hail signal

What 2.5" hail means for Saint Lawrence 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.

1 homes × $12,000 avg. claim

Potential roof exposure

$12K

Potential roof exposure — 1 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 $0 on top of the $150 plan.

Saint Lawrence hail history

11 recorded storm days in Saint Lawrence, SD

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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 5, 2026.