Hail size 1.5"
Martin Bennett County
“A few of the largest stones reached ping pong ball size but most were smaller. Time estimated based on radar. (UNR)”
— NOAA / SPC storm report
/ Storm field report · Bennett
Hail in Martin · Aug 24, 2026
Hit 19 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 1,661
Ground reports 6 5 hail · 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 24, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Martin has seen in the last 12 months
Composite score · 6.5 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.5 /10
- Peak hail signal
- 56 /100
- Homes exposed
- 64 /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 Martin saw the hail — from two instruments
Aug 24, 2026 · Martin, SD
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
NEXRAD radar signatures Surface resolved
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Max size
2.25"
The storm in context
Where Aug 24, 2026 sits in Martin's hail record.
This was Martin's 14th recorded hail day, arriving 7 days after the Aug 17, 2026 storm. By severity it ranks 2nd of the 16 storms we have logged here. Radar put the day's largest stone over Martin at 2.25" — radar-estimated size aloft.
The Aug 24, 2026 convective day was bigger than Martin: the same system put hail over 232 other tracked cities, 45 of them in South Dakota. Nearest: Batesland (17 miles southwest, up to 0.75"); Merriman (35 miles southeast, up to 2.5"); White River (60 miles northeast, up to 1.5").
These maps are stills. In the app this date is one of 16 Martin 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
6 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
5 reports Hail size 1.5"
1 N Martin Bennett County
“Report and photo via social media. Time estimated based on radar. (UNR)”
— NOAA / SPC storm report
Hail size 2.5"
4 NW Martin Bennett County
“Reported via social media. Time estimated based on radar. (UNR)”
— NOAA / SPC storm report
Hail size 1"
Martin Bennett County
“Nickel to quarter size near the southern edge of the storm core. Hail still falling as of 643 PM MDT. Reported via social media. (UNR)”
— NOAA / SPC storm report
Hail size 1"
5 W Martin Bennett County
“Photo via social media. Time estimated based on radar. (UNR)”
— NOAA / SPC storm report
Wind reports
1 report Wind gust 64 mph
8 NE Martin Bennett County
“Measured on a personal weather station. (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 northeast at roughly 20 mph, based on the timing of ground reports.
Hail was reported over 38 minutes, from to .
Severe hail signal
What 2.25" hail means for Martin 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.
1,661 homes × $12,000 avg. claim
Potential roof exposure
$20M
Potential roof exposure — 1,661 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 8 jobs
- Illustrative work
- ~$120K
Close just 0.5% of the 1,661 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 $349 on top of the $150 plan.
Martin hail history
Other storms in Martin.
16 recorded storm days in Martin, SD
Estimated-size surface Storm date Martin / SD
Sep 7, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Aug 27, 2026
2.25" Estimated 2.25"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Aug 17, 2026
2.5" Estimated 2.5"
3 ground reports Open report →
Estimated-size surface Storm date Martin / SD
Aug 16, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Aug 11, 2026
1.75" Estimated 1.75"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Aug 7, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jul 29, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jul 27, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jul 9, 2026
2.5" Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jun 28, 2026
4" Signatures 4" Estimated 4"
7 ground reports Open report →
Estimated-size surface Storm date Martin / SD
Jun 27, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jun 9, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jun 4, 2026
2.5" Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
Jun 2, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Martin / SD
May 30, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed 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 8, 2026.