Hail in Sioux Falls · Aug 28, 2026
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Sioux Falls that day. Open it on the live map to see the swath over the streets.
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Convective day · Aug 28, 2026 · noon–noon UTC
Severity
The 6th most severe storm Sioux Falls 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
- 25 /100
- Homes exposed
- 93 /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 Sioux Falls 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.
Estimated size field 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.
Only the radar-estimated size surface resolved for Aug 28, 2026 — this storm produced no NEXRAD point detections over Sioux Falls, so there is one map to show, not two.
The storm in context
Where Aug 28, 2026 sits in Sioux Falls's hail record.
This was Sioux Falls's 10th recorded hail day, arriving 34 days after the Jul 25, 2026 storm. By severity it ranks 6th of the 10 storms we have logged here. Radar put the day's largest stone over Sioux Falls at 1" — radar-estimated size aloft.
The Aug 28, 2026 convective day was bigger than Sioux Falls: the same system put hail over 185 other tracked cities, 28 of them in South Dakota. Nearest: Hartford (11 miles west, up to 0.75"); Crooks (12 miles northwest, up to 0.5"); Larchwood (15 miles east, up to 0.5").
These maps are stills. In the app this date is one of 10 Sioux Falls 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.
The National Weather Service logged no spotter reports for this storm over Sioux Falls. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Damage-capable hail signal
What 1" hail means for Sioux Falls 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.
Potential roof exposure
$552M
Potential roof exposure — 45,989 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 230 jobs
- Illustrative work
- ~$3.5M
Close just 0.5% of the 45,989 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 $9,658 on top of the $150 plan.
Sioux Falls hail history
Other storms in Sioux Falls.
Estimated-size surface Jul 25, 2026
0.75"
Estimated-size surface Jul 4, 2026
1.75"
Estimated-size surface Jul 2, 2026
1"
Estimated-size surface Jun 30, 2026
0.5"
Estimated-size surface Jun 27, 2026
0.75"
Estimated-size surface May 31, 2026
0.75"
Estimated-size surface May 24, 2026
1"
Estimated-size surface May 17, 2026
1.5"
Estimated-size surface Apr 13, 2026
0.75"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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