Hail in Mount Ayr May 17, 2026
NEXRAD caught this storm: 11 hail signatures up to 2.75". The radar-estimated size surface had no signal to model this day. At 2.75" — baseball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
2.75"
≈ baseball · the largest NEXRAD radar signature1,126
0
none filedThe most severe storm Mount Ayr 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
- 69 /100
- Homes exposed
- 61 /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 Mount Ayr saw the hail — from two instruments
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.
Only the NEXRAD radar-signature surface resolved for May 17, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where May 17, 2026 sits in Mount Ayr's hail record
This was Mount Ayr's 6th recorded hail day, arriving 1 day after the May 16, 2026 storm. By severity it ranks 1st of the 10 storms we have logged here. Radar put the day's largest stone over Mount Ayr at 2.75" — the largest NEXRAD radar signature.
The May 17, 2026 convective day was bigger than Mount Ayr: the same system put hail over 894 other tracked cities, 139 of them in Iowa. Nearest: Redding (5 miles west, up to 1.25"); Blockton (10 miles west, up to 1.25"); Sheridan (20 miles west, up to 2.75").
These maps are stills from Mount Ayr's May 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.
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.
Nobody on the ground filed a report over Mount Ayr for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
What 2.75" hail means for Mount Ayr roofs
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.
$14M
Potential roof exposure — 1,126 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Mount Ayr on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Mount Ayr storm history — this May 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
10 recorded storm days in Mount Ayr, IA
Other storms in Mount Ayr
Jun 13, 2026
0.5"
Jun 11, 2026
2.25"
Jun 10, 2026
0.75"
May 18, 2026
1"
May 16, 2026
2.5"
Apr 17, 2026
1"
Apr 15, 2026
1"
Apr 3, 2026
1.25"
Mar 5, 2026
1"