Both radar surfaces caught this storm: NEXRAD logged 22 hail signatures up to 2.25", and the radar-estimated size reached 1.25" aloft. At 2.25" — tennis ball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
2.25"
≈ tennis ball · the largest NEXRAD radar signature2,976
4
2 hail · 2 tornadoOverview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
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.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
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.
This was Atchison's 4th recorded hail day, arriving 14 days after the Apr 3, 2026 storm. By severity it ranks 1st of the 7 storms we have logged here. Radar put the day's largest stone over Atchison at 2.25" — the largest NEXRAD radar signature.
The Apr 17, 2026 convective day was bigger than Atchison: the same system put hail over 1,016 other tracked cities, 144 of them in Kansas. Nearest: Rushville (5 miles east, up to 2"); Cummings (9 miles southwest, up to 2.5"); De Kalb (11 miles east, up to 1.75").
These maps are stills from Atchison's Apr 17, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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.
“Storm chaser observed brief tornado near the intersection of 230th Road and Sheridan Road in Atchison County... KS. Time was approximately 3:08 pm CDT on April 17 as es (EAX)”
— NOAA / SPC storm report
“Spotter saw a brief touchdown. (EAX)”
— NOAA / SPC storm report
“(EAX)”
— NOAA / SPC storm report
“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report
Hail was reported over 42 minutes, from to .
Reports came from Potter — beyond Atchison itself.
Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.
$36M
Potential roof exposure — 2,976 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Radar updates in real time, spotter reports appear on the map as they're filed, and the full Atchison storm history — this Apr 17, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
7 recorded storm days in Atchison, KS
Jul 10, 2026
2.5"
Jul 3, 2026
1.75"
Apr 26, 2026
1.75"
Apr 3, 2026
1"
Mar 31, 2026
1"
Mar 5, 2026