Hail in Bonesteel · Aug 3, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Aug 3, 2026 · noon–noon UTC
Severity
The 7th most severe storm Bonesteel 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
- 25 /100
- Homes exposed
- 52 /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 Bonesteel saw the hail — from two instruments
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.
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.
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.
The storm in context
Where Aug 3, 2026 sits in Bonesteel's hail record.
This was Bonesteel's 5th recorded hail day, arriving 32 days after the Jul 2, 2026 storm. By severity it ranks 7th of the 9 storms we have logged here. Radar put the day's largest stone over Bonesteel at 1" — radar-estimated size aloft.
The Aug 3, 2026 convective day was bigger than Bonesteel: the same system put hail over 172 other tracked cities, 23 of them in South Dakota. Nearest: Herrick (14 miles southwest, up to 0.75"); Burke (19 miles west, up to 0.75"); Platte (22 miles north, up to 0.5").
These maps are stills. In the app this date is one of 9 Bonesteel 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 Bonesteel 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.
Damage-capable hail signal
What 1" hail means for Bonesteel 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.
Potential roof exposure
$4.9M
Potential roof exposure — 412 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 412 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
August 2028
Claims from this storm can typically be filed until around August 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 $87 on top of the $150 plan.
Bonesteel hail history
Other storms in Bonesteel.
Sep 7, 2026
1.5"
Estimated-size surface Sep 1, 2026
2"
Estimated-size surface Aug 23, 2026
1.5"
Estimated-size surface Aug 6, 2026
0.75"
Estimated-size surface Jul 2, 2026
1.75"
Estimated-size surface Jun 30, 2026
1.75"
Estimated-size surface Jun 27, 2026
1"
Estimated-size surface Jun 3, 2026
0.75"Take your next area into the field.
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