Wind gust 73 mph
7 W Armour Douglas County
“A personal weather station near Armour reported a 73 mph wind gust. (FSD)”
— NOAA / SPC storm report
/ Storm field report · Douglas
Hail in Armour · Jun 9, 2026
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Armour that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 1" ≈ quarter · radar-estimated size aloft
Homes in the hail footprint 427
Ground reports 2 2 wind
Radar surfaces 1 Estimated size only
Convective day · Jun 9, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Armour has seen in the last 12 months
Composite score · 3.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.3 /10
- Peak hail signal
- 25 /100
- Homes exposed
- 53 /100
- Ground truth
- 33 /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 Armour saw the hail — from two instruments
Jun 9, 2026 · Armour, SD
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.
Radar-estimated hail size Surface resolved
Estimated size field 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"
Only the radar-estimated size surface resolved for Jun 9, 2026 — this storm produced no NEXRAD point detections over Armour, so there is one map to show, not two.
The storm in context
Where Jun 9, 2026 sits in Armour's hail record.
This was Armour's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 2nd of the 8 storms we have logged here. Radar put the day's largest stone over Armour at 1" — radar-estimated size aloft.
The Jun 9, 2026 convective day was bigger than Armour: the same system put hail over 646 other tracked cities, 67 of them in South Dakota. Nearest: Delmont (13 miles east, up to 1"); Geddes (14 miles southwest, up to 0.75"); Bristow (21 miles south, up to 0.75").
These maps are stills. In the app this date is one of 8 Armour 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
2 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.
Wind reports
2 reports Wind gust 59 mph
7 NNE Lake Andes Charles Mix County
“A personal weather station near Lake Andes recorded a 59 mph wind gust. (FSD)”
— 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 10 minutes, from to .
Reports came from Lake Andes — beyond Armour itself.
Damage-capable hail signal
What 1" hail means for Armour roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
427 homes × $12,000 avg. claim
Potential roof exposure
$5.1M
Potential roof exposure — 427 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 427 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
June 2028
Claims from this storm can typically be filed until around June 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 $90 on top of the $150 plan.
Armour hail history
Other storms in Armour.
8 recorded storm days in Armour, SD
Estimated-size surface Storm date Armour / SD
Sep 7, 2026
0.75" Estimated 0.75"
3 ground reports Open report →
Map unavailable
NEXRAD surface Storm date Armour / SD
Sep 4, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Armour / SD
Aug 17, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Armour / SD
Aug 3, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Armour / SD
Jul 2, 2026
1.25" Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Armour / SD
Jun 30, 2026
1" Signatures 1" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Armour / SD
Jun 27, 2026
1.75" Signatures 1.75" Estimated 1.5"
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.