“Report from mPING: Half Dollar (1.25 in.) Time confirmed from radar. (MKX)”
— NOAA / SPC storm report
Hail in Horicon Jul 27, 2026
Hit 7 days agoThe radar-estimated size surface caught this storm, reaching 1" aloft. NEXRAD logged no point detections over Horicon this day.
1"
≈ quarter · radar-estimated size aloft4,809
2
2 hailThe most severe storm Horicon 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
- 25 /100
- Homes exposed
- 74 /100
- Ground truth
- 33 /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 Horicon 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.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Horicon, so there is one map to show, not two.
Where Jul 27, 2026 sits in Horicon's hail record
This was Horicon's 3rd recorded hail day, arriving 73 days after the May 15, 2026 storm. By severity it ranks 1st of the 3 storms we have logged here. Radar put the day's largest stone over Horicon at 1" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Horicon: the same system put hail over 803 other tracked cities, 128 of them in Wisconsin. Nearest: Mayville (5 miles east, up to 1"); Iron Ridge (7 miles south, up to 1.5"); Brownsville (7 miles north, up to 1").
These maps are stills from Horicon's Jul 27, 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.
Hail reports
2 reports“Report from mPING: Quarter (1.00 in.) Time confirmed from radar. (MKX)”
— NOAA / SPC storm report
How the storm moved
Reports came from Mayville — beyond Horicon itself.
What 1" hail means for Horicon roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$58M
Potential roof exposure — 4,809 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Horicon on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Horicon storm history — this Jul 27, 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
3 recorded storm days in Horicon, WI