“(FSD)”
— NOAA / SPC storm report
Hail in Wagner · Sep 1, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 2.75" aloft. At 2.75" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
Convective day · Sep 1, 2026 · noon–noon UTC
Severity
The most severe storm Wagner 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
- 69 /100
- Homes exposed
- 72 /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 Wagner 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.
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
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.
The storm in context
Where Sep 1, 2026 sits in Wagner's hail record.
This was Wagner's 8th recorded hail day, arriving 9 days after the Aug 23, 2026 storm. By severity it ranks 1st of the 10 storms we have logged here. Radar put the day's largest stone over Wagner at 2.75" — radar-estimated size aloft.
The Sep 1, 2026 convective day was bigger than Wagner: the same system put hail over 362 other tracked cities, 42 of them in South Dakota. Nearest: Dante (5 miles east, up to 1.5"); Bristow (10 miles west, up to 3.25"); Lynch (10 miles southwest, up to 2.5").
These maps are stills. In the app this date is one of 10 Wagner 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.
Hail reports
3 reports“In addition to golf ball sized hail... winds were gusting at 40-50 mph... and rainfall was heavy. (FSD)”
— NOAA / SPC storm report
“Ground covered with hail ranging from nickel to half dollar sized. (FSD)”
— NOAA / SPC storm report
Wind reports
3 reports“Wind gusts estimated around 60 mph were bending whole trees during the peak of the storm. Sheets of rain were falling... along with pea to dime sized hail. (FSD)”
— NOAA / SPC storm report
“Measured on personal weater station. (FSD)”
— NOAA / SPC storm report
“Measured on personal weater station. Peak of 63 mph at 553 pm. (FSD)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
The storm tracked south at roughly 5 mph, based on the timing of ground reports.
Hail was reported over 45 minutes, from to .
Reports came from Marty and Ravinia — beyond Wagner itself.
Severe hail signal
What 2.75" hail means for Wagner 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.
Potential roof exposure
$50M
Potential roof exposure — 4,148 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 21 jobs
- Illustrative work
- ~$315K
Close just 0.5% of the 4,148 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
September 2028
Claims from this storm can typically be filed until around September 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 $871 on top of the $150 plan.
Wagner hail history
Other storms in Wagner.
Estimated-size surface Sep 7, 2026
1.25"
Estimated-size surface Sep 4, 2026
0.5"
Estimated-size surface Aug 23, 2026
0.75"
Estimated-size surface Aug 3, 2026
0.75"
Estimated-size surface Jul 25, 2026
0.5"
Estimated-size surface Jul 2, 2026
1"
Estimated-size surface Jun 30, 2026
1"
Estimated-size surface Jun 27, 2026
1.75"
Estimated-size surface May 17, 2026
3.5"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.