Hail size 2.5"
6 NE Redig Harding County
“At least tennis ball size. Winds only 30-40 mph. (UNR)”
— NOAA / SPC storm report
/ Storm field report · Harding
Hail in Buffalo · Jun 7, 2026
NEXRAD logged 18 hail signatures up to 4"; the estimated-size surface reached 3.5" 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 18
Ground reports 12 4 hail · 8 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jun 7, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Buffalo has seen in the last 12 months
Composite score · 8.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
8.1 /10
- Peak hail signal
- 100 /100
- Homes exposed
- 26 /100
- Ground truth
- 100 /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 Buffalo saw the hail — from two instruments
Jun 7, 2026 · Buffalo, SD
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
NEXRAD radar signatures Surface resolved
Radar signature field NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Max size
4"
Detections
18
Radar-estimated hail size Surface resolved
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
3.5"
The storm in context
Where Jun 7, 2026 sits in Buffalo's hail record.
This was Buffalo's 4th recorded hail day, arriving 1 day after the Jun 6, 2026 storm. By severity it ranks 3rd of the 10 storms we have logged here. Radar put the day's largest stone over Buffalo at 4" — the largest NEXRAD radar signature.
The Jun 7, 2026 convective day was bigger than Buffalo: the same system put hail over 237 other tracked cities, 21 of them in South Dakota. Nearest: Reva (32 miles southeast, up to 3"); Ekalaka (33 miles west, up to 3.25"); Bowman (37 miles north, up to 1.25").
These maps are stills. In the app this date is one of 10 Buffalo 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
12 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
4 reports Hail size 2"
2 S Redig Harding County
“Easily 2 inch stones with several that appear to be larger. (UNR)”
— NOAA / SPC storm report
Hail size 1.5"
8 W Redig Harding County
“(UNR)”
— NOAA / SPC storm report
Hail size 3.25"
5 N Redig Harding County
“This was measured after some melting took place. (UNR)”
— NOAA / SPC storm report
Wind reports
8 reports Wind gust 68 mph
1 ESE Ladner Harding County
“(UNR)”
— NOAA / SPC storm report
Wind gust 62 mph
2 S Redig Harding County
“Sustained 50-55 mph (UNR)”
— NOAA / SPC storm report
Wind gust 70 mph
8 W Redig Harding County
“(UNR)”
— NOAA / SPC storm report
Wind gust 58 mph
13 SSW Reva Harding County
“(UNR)”
— NOAA / SPC storm report
Wind gust 58 mph
13 SSW Reva Harding County
“(UNR)”
— NOAA / SPC storm report
Wind gust 70 mph
15 ENE Redig Harding County
“A lot of hail... covered the ground. (UNR)”
— NOAA / SPC storm report
Wind gust 62 mph
4 N Ludlow Harding County
“(UNR)”
— NOAA / SPC storm report
Wind gust 58 mph
4 WSW Reva Harding County
“(UNR)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
The storm tracked east at roughly 25 mph, based on the timing of ground reports.
Hail was reported over 51 minutes, from to .
Reports came from Redig, Ladner, Reva, and Ludlow — beyond Buffalo itself.
Severe hail signal
What 4" hail means for Buffalo 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.
18 homes × $12,000 avg. claim
Potential roof exposure
$216K
Potential roof exposure — 18 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 $4 on top of the $150 plan.
Buffalo hail history
Other storms in Buffalo.
10 recorded storm days in Buffalo, SD
Estimated-size surface Storm date Buffalo / SD
Aug 30, 2026
1.25" Estimated 1.25"
10 ground reports Open report →
Estimated-size surface Storm date Buffalo / SD
Aug 17, 2026
1.25" Estimated 1.25"
1 ground report Open report →
Estimated-size surface Storm date Buffalo / SD
Aug 11, 2026
4" Estimated 4"
5 ground reports Open report →
Estimated-size surface Storm date Buffalo / SD
Jul 16, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / SD
Jul 2, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / SD
Jun 27, 2026
4" Signatures 4" Estimated 3"
8 ground reports Open report →
Estimated-size surface Storm date Buffalo / SD
Jun 6, 2026
2.5" Signatures 2.5" Estimated 1.75"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / SD
May 30, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Buffalo / SD
Apr 13, 2026
2" Signatures 2" Estimated 1.25"
No ground reports filed 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 31, 2026.