Hail in Spearfish Jul 30, 2026
Hit 4 days agoBoth radar surfaces caught this storm: NEXRAD logged 2 hail signatures up to 1.5", and the radar-estimated size reached 1" aloft.
1.5"
≈ ping-pong ball · the largest NEXRAD radar signature89
0
none filedThe 2nd most severe storm Spearfish has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 38 /100
- Homes exposed
- 39 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Spearfish saw the hail — from two instruments
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 — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Where Jul 30, 2026 sits in Spearfish's hail record
This was Spearfish's 8th recorded hail day, arriving 27 days after the Jul 3, 2026 storm. By severity it ranks 2nd of the 8 storms we have logged here. Radar put the day's largest stone over Spearfish at 1.5" — the largest NEXRAD radar signature.
The Jul 30, 2026 convective day was bigger than Spearfish: the same system put hail over 432 other tracked cities, 20 of them in South Dakota. Nearest: Belle Fourche (6 miles northeast, up to 1.5"); Beulah (12 miles southwest, up to 1.5"); Newell (26 miles east, up to 0.75").
These maps are stills from Spearfish's Jul 30, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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.
For this storm over Spearfish, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
What 1.5" hail means for Spearfish roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
$1.1M
Potential roof exposure — 89 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Spearfish on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Spearfish storm history — this Jul 30, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
8 recorded storm days in Spearfish, SD
Other storms in Spearfish
Jul 3, 2026
1.25"
Jul 1, 2026
1"
Jun 26, 2026
1"
Jun 4, 2026
0.75"
Jun 2, 2026
1"
Jun 1, 2026
0.5"
May 30, 2026
1.25"