Both radar surfaces caught this storm: NEXRAD logged 1 hail signature up to 1.75", and the radar-estimated size reached 1.5" aloft.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
1.75"
≈ golf ball · the largest NEXRAD radar signature30
11
9 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.
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
This was Olathe's 3rd recorded hail day, arriving 9 days after the Apr 17, 2026 storm. By severity it ranks 2nd of the 6 storms we have logged here. Radar put the day's largest stone over Olathe at 1.75" — the largest NEXRAD radar signature.
The Apr 26, 2026 convective day was bigger than Olathe: the same system put hail over 710 other tracked cities, 277 of them in Kansas. Nearest: Bucyrus (5 miles east, up to 1.75"); Spring Hill (7 miles south, up to 1"); Overland Park (9 miles northeast, up to 1.75").
These maps are stills from Olathe's Apr 26, 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.
“A brief EF 0 Tornado occured just northeast of Spring Hill... KS in southeast Johnson County KS at 5:38 AM CDT on Monday April 27... 2026. This tornado was only on the (EAX)”
— NOAA / SPC storm report
“The same storm that resulted in a short lived EF 0 Tornado just northeast of Spring Hill... resulted in a second tornado... this one an EF 1 Tornado just along the John (EAX)”
— NOAA / SPC storm report
“Report relayed from social media. Time estimated from radar. (EAX)”
— NOAA / SPC storm report
“Report from mPING: Quarter (1.00 in.). (EAX)”
— NOAA / SPC storm report
“Report from mPING: Quarter (1.00 in.). (EAX)”
— NOAA / SPC storm report
“Report from mPING: Half Dollar (1.25 in.). (EAX)”
— NOAA / SPC storm report
“Report from mPING: Half Dollar (1.25 in.). (EAX)”
— NOAA / SPC storm report
“(EAX)”
— NOAA / SPC storm report
“Report from mPING: Half Dollar (1.25 in.). (EAX)”
— NOAA / SPC storm report
“Report from mPING: Quarter (1.00 in.). (EAX)”
— NOAA / SPC storm report
“Report from mPING: Half Dollar (1.25 in.). (EAX)”
— NOAA / SPC storm report
Hail was reported over 27 minutes, from to .
Reports came from Shawnee, De Soto, Clare, Spring Hill, and Bucyrus — beyond Olathe itself.
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
$360K
Potential roof exposure — 30 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 Olathe storm history — this Apr 26, 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
6 recorded storm days in Olathe, KS
Jul 8, 2026
Jul 3, 2026
1"
Jun 8, 2026
1"
Apr 17, 2026
1.75"
Mar 10, 2026
1.25"