Hail size 2"
3 SSE Westport Brown County
“Photo sent of 2 inch hail 10 miles north of Aberdeen. Time estimated by radar. (ABR)”
— NOAA / SPC storm report
Hail in Westport Jul 24, 2026
Hit 10 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 4", and the radar-estimated size reached 3.25" aloft. At 4" — softball or larger — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
4"
≈ softball or larger · the largest NEXRAD radar signature Homes in the hail footprint
1,171
Ground reports
5
5 hailThe most severe storm Westport 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.
8.8 /10
- Hail size
- 100 /100
- Homes exposed
- 61 /100
- Ground truth
- 83 /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 Westport saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
NEXRAD radar signatures
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
4"
Detections
0
Radar-estimated hail size
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
3.25"
Where Jul 24, 2026 sits in Westport's hail record
This was Westport's 6th recorded hail day, arriving 17 days after the Jul 7, 2026 storm. By severity it ranks 1st of the 6 storms we have logged here. Radar put the day's largest stone over Westport at 4" — the largest NEXRAD radar signature.
The Jul 24, 2026 convective day was bigger than Westport: the same system put hail over 221 other tracked cities, 13 of them in South Dakota. Nearest: Aberdeen (8 miles southeast, up to 4"); Columbia (10 miles east, up to 2.5"); Frederick (14 miles north, up to 4").
These maps are stills from Westport's Jul 24, 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.
Hail reports
5 reports Hail size 1"
2 NNW Westport Brown County
“Law enforcement relayed a report of estimated 60-70 mph wind and quarter sized hail at 118th Street and US 281. Report relayed by Brown County EM. (ABR)”
— NOAA / SPC storm report
Hail size 1"
2 N Westport Brown County
“Brown County EM Reported quarter sized hail at the intersection of 118th street and 387th Ave. (ABR)”
— NOAA / SPC storm report
Hail size 1.75"
3 NW Westport Brown County
“Westport COOP observer estimated hail to the size of golf balls... wind damage was also observed at the location. Time based off Radar. (ABR)”
— NOAA / SPC storm report
Hail size 1"
0.5 N Westport Brown County
“Trained spotters reported heavy downpour and quarter sized hail... the combination reducing visibility to near zero. Report relayed via Brown County EM. (ABR)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
Hail was reported over 78 minutes, from to .
What 4" hail means for Westport roofs
Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.
What this storm is worth to a roofer
$14M
Potential roof exposure — 1,171 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
6 jobs
Illustrative work
~$90K
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Westport on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Westport storm history — this Jul 24, 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
Westport hail history
← All hail in Westport 6 recorded storm days in Westport, SD
Other storms in Westport
Jul 7, 2026
2" Signatures 2" Estimated 1.25"
3
ground reports 
Jun 27, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed 
May 31, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed 
Apr 22, 2026
Jan 20, 2026
0.5" Estimated 0.5"
No ground reports filed
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.