Hail size 1"
3 SSE White River Mellette County
“(UNR)”
— NOAA / SPC storm report
/ Storm field report · Mellette
Hail in White River · Jun 28, 2026
NEXRAD logged 4 hail signatures up to 4"; the estimated-size surface reached 2.75" aloft. At 4" — softball or larger — 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 4" ≈ softball or larger · the largest NEXRAD radar signature
Homes in the hail footprint 0
Ground reports 2 1 hail · 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jun 28, 2026 · noon–noon UTC
Severity
The most severe storm White River has seen in the last 12 months
Composite score · 6.5 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.5 /10
- Peak hail signal
- 100 /100
- Homes exposed
- 0 /100
- Ground truth
- 33 /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 White River saw the hail — from two instruments
Jun 28, 2026 · White River, SD
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
NEXRAD radar signatures Surface resolved
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Max size
4"
Detections
4
Radar-estimated hail size Surface resolved
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Max size
2.75"
The storm in context
Where Jun 28, 2026 sits in White River's hail record.
This was White River's 4th recorded hail day, arriving 8 days after the Jun 20, 2026 storm. By severity it ranks 1st of the 13 storms we have logged here. Radar put the day's largest stone over White River at 4" — the largest NEXRAD radar signature.
The Jun 28, 2026 convective day was bigger than White River: the same system put hail over 348 other tracked cities, 42 of them in South Dakota. Nearest: Wood (17 miles southeast, up to 2.5"); Norris (21 miles west, up to 2.5"); Okaton (22 miles north, up to 2.5").
These maps are stills. In the app this date is one of 13 White River 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
2 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.
Hail reports
1 reportWind reports
1 report Wind gust 70 mph
3 W White River Mellette County
“Some tree branches down. (UNR)”
— NOAA / SPC storm report
Severe hail signal
What 4" hail means for White River 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
White River hail history
Other storms in White River.
13 recorded storm days in White River, SD
Estimated-size surface Storm date White River / SD
Aug 27, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Aug 24, 2026
1.5" Estimated 1.5"
1 ground report Open report →
Estimated-size surface Storm date White River / SD
Aug 18, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Aug 11, 2026
1.75" Estimated 1.75"
2 ground reports Open report →
Estimated-size surface Storm date White River / SD
Jul 30, 2026
1.5" Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jul 29, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jul 25, 2026
1.25" Signatures 1.25" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jul 3, 2026
1.25" Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jul 2, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jun 20, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jun 4, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date White River / SD
Jun 2, 2026
2.5" Signatures 2.5" Estimated 2"
2 ground reports Open report →
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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For iPhone. Android coming soon.
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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 28, 2026.