Hail in Mason City Apr 11, 2026
NEXRAD caught this storm: 0 hail signatures up to 0". The radar-estimated size surface had no signal to model this day.
0"
≈ pea to penny · radar-estimated size aloft0
0
none filedThe 9th most severe storm Mason City has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 0 /100
- Homes exposed
- 0 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Mason City 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.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Only the NEXRAD radar-signature surface resolved for Apr 11, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where Apr 11, 2026 sits in Mason City's hail record
This was Mason City's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 9th of the 9 storms we have logged here. Radar put the day's largest stone over Mason City at 0" — radar-estimated size aloft.
The Apr 11, 2026 convective day was bigger than Mason City: the same system put hail over 134 other tracked cities, 10 of them in Iowa. Nearest: Glenville (24 miles north, up to 0"); Emmons (30 miles northwest, up to 2.5"); Britt (30 miles west, up to 0").
These maps are stills from Mason City's Apr 11, 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.
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 Mason City. 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.
What 0" hail means for Mason City roofs
Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.
Track hail over Mason City on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Mason City storm history — this Apr 11, 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
9 recorded storm days in Mason City, IA
Other storms in Mason City
Jul 20, 2026
1.25"
Jul 8, 2026
1.75"
Jul 2, 2026
2.5"
Jul 1, 2026
1.25"
Jun 28, 2026
1"
May 17, 2026
May 15, 2026
2.5"
Apr 13, 2026
0.75"