Hail size 1.5"
1 S Oglala Oglala Lakota County
“Ping pong ball size hail falling now along with very strong winds. Leading edge of storm. (UNR)”
— NOAA / SPC storm report
/ Storm field report · Oglala Lakota
Hail in Oglala · Aug 11, 2026
Hit 32 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 2.25" aloft. At 2.25" — tennis ball — 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 2.25" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 548
Ground reports 8 8 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Oglala has seen in the last 12 months
Composite score · 6.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.2 /10
- Peak hail signal
- 56 /100
- Homes exposed
- 55 /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 Oglala saw the hail — from two instruments
Aug 11, 2026 · Oglala, 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
0"
Detections
0
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
2.25"
The storm in context
Where Aug 11, 2026 sits in Oglala's hail record.
This was Oglala's 6th recorded hail day, arriving 44 days after the Jun 28, 2026 storm. By severity it ranks 3rd of the 8 storms we have logged here. Radar put the day's largest stone over Oglala at 2.25" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Oglala: the same system put hail over 1,041 other tracked cities, 44 of them in South Dakota. Nearest: Pine Ridge (14 miles south, up to 2"); Rushville (24 miles south, up to 2"); Gordon (30 miles southeast, up to 1.75").
These maps are stills. In the app this date is one of 8 Oglala 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
8 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
8 reports Hail size 2.75"
1 S Oglala Oglala Lakota County
“Frequent baseball sized hail mixed with golfball sized hail. Damage to vehicle parked outside was noted during the call. (UNR)”
— NOAA / SPC storm report
Hail size 3"
Oglala Oglala Lakota County
“Updated. Multiple public reports and photos of baseball size hail to 3 inch hail in Oglala with windows smashed out of vehicles and homes. Roof damage also reported. Ti (UNR)”
— NOAA / SPC storm report
Hail size 2.75"
Oglala Oglala Lakota County
“Multiple public reports and photos of baseball size hail in Oglala with windows smashed out of vehicles and homes. Roof damage also reported. Time estimated based on ra (UNR)”
— NOAA / SPC storm report
Hail size 4"
6 NW Oglala Oglala Lakota County
“Measured with calipers. Time estimated based on radar. (UNR)”
— NOAA / SPC storm report
Hail size 3.9"
7 NNW Oglala Oglala Lakota County
“Measured with calipers along Highway 41. Via Spotter Network. Time adjusted based on radar. (UNR)”
— NOAA / SPC storm report
Hail size 3"
2 WNW Oglala Oglala Lakota County
“Numerous vehicles and school buses severely damaged at the Loneman School. Start of school year will be delayed. Photos and information via social media. Time estimated (UNR)”
— NOAA / SPC storm report
Hail size 2.75"
8 NNW Oglala Oglala Lakota County
“Reported via Spotter Network along Highway 41. Time adjusted based on radar. (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.
Hail was reported over 18 minutes, from to .
Severe hail signal
What 2.25" hail means for Oglala 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.
548 homes × $12,000 avg. claim
Potential roof exposure
$6.6M
Potential roof exposure — 548 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 548 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 $115 on top of the $150 plan.
Oglala hail history
Other storms in Oglala.
8 recorded storm days in Oglala, SD
Map unavailable
NEXRAD surface Storm date Oglala / SD
Sep 5, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Oglala / SD
Aug 16, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Oglala / SD
Jun 28, 2026
2.25" Signatures 2.25" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Oglala / SD
Jun 22, 2026
1" Estimated 1"
1 ground report Open report →
Estimated-size surface Storm date Oglala / SD
Jun 4, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Oglala / SD
Jun 2, 2026
3.5" Signatures 3.5" Estimated 2"
3 ground reports Open report →
Estimated-size surface Storm date Oglala / SD
May 30, 2026
3.5" Signatures 3.5" Estimated 2.25"
2 ground reports Open report →
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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 6, 2026.