Hail in Lake Andes · Aug 23, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Lake Andes that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 23, 2026 · noon–noon UTC
Severity
The 6th most severe storm Lake Andes has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 13 /100
- Homes exposed
- 46 /100
- Ground truth
- 0 /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 Lake Andes 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.
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.
Only the radar-estimated size surface resolved for Aug 23, 2026 — this storm produced no NEXRAD point detections over Lake Andes, so there is one map to show, not two.
The storm in context
Where Aug 23, 2026 sits in Lake Andes's hail record.
This was Lake Andes's 4th recorded hail day, arriving 6 days after the Aug 17, 2026 storm. By severity it ranks 6th of the 6 storms we have logged here. Radar put the day's largest stone over Lake Andes at 0.5" — radar-estimated size aloft.
The Aug 23, 2026 convective day was bigger than Lake Andes: the same system put hail over 185 other tracked cities, 18 of them in South Dakota. Nearest: Geddes (8 miles west, up to 1"); Bristow (14 miles south, up to 0.5"); Wagner (17 miles southeast, up to 0.75").
These maps are stills. In the app this date is one of 6 Lake Andes 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
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.
No ground reports were filed with the National Weather Service for this storm over Lake Andes. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
Below the severe threshold
What 0.5" hail means for Lake Andes roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$2.4M
Potential roof exposure — 198 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 1 job
- Illustrative work
- ~$15K
Close just 0.5% of the 198 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 $42 on top of the $150 plan.
Lake Andes hail history
Other storms in Lake Andes.
Sep 7, 2026
0.5"
Estimated-size surface Sep 1, 2026
2.75"
Estimated-size surface Aug 17, 2026
0.75"
Estimated-size surface Jun 30, 2026
1.75"
Estimated-size surface Jun 27, 2026
1.75"Take your next area into the field.
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