Hail map for Mason City, IA — May 15, 2026
NOAA radar detected hail up to 1.00″ — quarter size — within 5 miles of Mason City on May 15, 2026.
- Max hail size
- 1.00″
- quarter
- Impact rating
- 3/10
- from stone size
- Size bands over the city
- 1
- distinct radar bands
- Measured on the ground
- 1.00″
- 8.6 mi away · Public
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
Work Mason City on the live hail map
- The whole state around Mason City, with this swath already on it
- Three years of hail swaths, filterable by stone size
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Did hail hit your address?
This page covers Mason City as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
Check my addressFree, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.
What people on the ground measured in Mason City, IA on May 15, 2026
4 reports filed with the National Weather Service — 1 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.00″ quarter size PublicClear Lake, IA · 8.6 mi away7:50 PM CDTCerro Gordo County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained Spotter1 WNW Clear Lake, IA · 9.1 mi away7:47 PM CDTCerro Gordo County
- 1.00″ quarter size Law Enforcement4 NNW Swaledale, IA · 11.1 mi away8:00 PM CDTCerro Gordo County
on I35 near mile marker 186. time estimated from radar.
- 1.00″ quarter size Public1 W Ventura, IA · 13.7 mi away7:35 PM CDTCerro Gordo County
Report from mPING: Quarter (1.00 in.).
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Mason City hail on May 15, 2026
NOAA radar estimated stones up to 1.00 inches — quarter size — within about 5 miles of Mason City that day, across 1 distinct size band. Sizes vary street to street inside a single swath.