Storm report · Pennington

Hail in Hill City May 30, 2026

Both radar surfaces caught this storm: NEXRAD logged 16 hail signatures up to 1.75", and the radar-estimated size reached 1" aloft.

Largest hailstone

1.75"

≈ golf ball · the largest NEXRAD radar signature
Homes in the hail footprint

437

Ground reports

0

none filed
Severity

The 3rd most severe storm Hill City has seen in the last 12 months

Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

3.9 /10
Hail size
44 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
53 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Two ways to read the storm

How Hill City saw the hail — from two instruments

Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.

NEXRAD radar signatures
NEXRAD radar-signature map of the hail storm over Hill City, SD on May 30, 2026

NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.

Max size 1.75" Detections 16
Radar-estimated hail size
Radar-estimated hail-size map of the storm over Hill City, SD on May 30, 2026

Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.

Max size 1"
The storm in context

Where May 30, 2026 sits in Hill City's hail record

This was Hill City's 2nd recorded hail day, arriving 27 days after the May 3, 2026 storm. By severity it ranks 3rd of the 12 storms we have logged here. Radar put the day's largest stone over Hill City at 1.75" — the largest NEXRAD radar signature.

The May 30, 2026 convective day was bigger than Hill City: the same system put hail over 541 other tracked cities, 41 of them in South Dakota. Nearest: Rapid City (13 miles east, up to 1.5"); Deadwood (16 miles northeast, up to 1.25"); Lead (17 miles north, up to 1.25").

These maps are stills from Hill City's May 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.

Ground reports

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 Hill City, 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.

Widespread claimable damage

What 1.75" hail means for Hill City 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.

What this storm is worth to a roofer

$5.2M

Potential roof exposure — 437 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
2 jobs
Illustrative work
~$30K
Close just 0.5% of the 437 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.
Claims from this storm can typically be filed until around May 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.

Track hail over Hill City on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Hill City storm history — this May 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

Hill City hail history

12 recorded storm days in Hill City, SD

← All hail in Hill City

Other storms in Hill City

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 surfaces are detections and estimates, not confirmed damage. Last updated Aug 3, 2026.