Hail size 1"
3 S Castlewood Hamlin County
“Delayed report. A trained spotter noted hail damage to crops at 459th ave between 187th and 189th st. Time and size estimated. (ABR)”
— NOAA / SPC storm report
/ Storm field report · Hamlin
Hail in Castlewood · Jun 3, 2026
NEXRAD logged 0 hail signatures up to 1.75"; the estimated-size surface reached 1.25" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.75" ≈ golf ball · the largest NEXRAD radar signature
Homes in the hail footprint 552
Ground reports 1 1 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jun 3, 2026 · noon–noon UTC
Severity
The most severe storm Castlewood has seen in the last 12 months
Composite score · 4.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.2 /10
- Peak hail signal
- 44 /100
- Homes exposed
- 55 /100
- Ground truth
- 17 /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 Castlewood saw the hail — from two instruments
Jun 3, 2026 · Castlewood, 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
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
1.75"
Detections
0
Radar-estimated hail size Surface resolved
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
1.25"
The storm in context
Where Jun 3, 2026 sits in Castlewood's hail record.
This was Castlewood's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 3 storms we have logged here. Radar put the day's largest stone over Castlewood at 1.75" — the largest NEXRAD radar signature.
The Jun 3, 2026 convective day was bigger than Castlewood: the same system put hail over 274 other tracked cities, 69 of them in South Dakota. Nearest: Hayti (10 miles west, up to 1.5"); Lake Norden (10 miles southwest, up to 1"); Hazel (12 miles northwest, up to 1.75").
These maps are stills. In the app this date is one of 3 Castlewood 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
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 reportHigh damage potential
What 1.75" hail means for Castlewood roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
552 homes × $12,000 avg. claim
Potential roof exposure
$6.6M
Potential roof exposure — 552 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 3 jobs
- Illustrative work
- ~$45K
Close just 0.5% of the 552 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
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 $116 on top of the $150 plan.
Castlewood hail history
Other storms in Castlewood.
3 recorded storm days in Castlewood, SD
The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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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.