Hail size 2.75"
2 NE Maple Bluff Dane County
“Report from mPING: Baseball (2.75 in.). (MKX)”
— NOAA / SPC storm report
Hail in Deforest Apr 14, 2026
The radar-estimated size surface caught this storm, reaching 2.25" aloft. NEXRAD logged no point detections over Deforest this day. At 2.25" — tennis ball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
2.25"
≈ tennis ball · radar-estimated size aloft Homes in the hail footprint
7,074
Ground reports
9
9 hailThe most severe storm Deforest has seen in the last 12 months
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.8 /10
- Hail size
- 56 /100
- Homes exposed
- 77 /100
- Ground truth
- 100 /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 Deforest 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.
Radar-estimated hail size
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
2.25"
Only the radar-estimated size surface resolved for Apr 14, 2026 — this storm produced no NEXRAD point detections over Deforest, so there is one map to show, not two.
Where Apr 14, 2026 sits in Deforest's hail record
This was Deforest's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 2 storms we have logged here. Radar put the day's largest stone over Deforest at 2.25" — radar-estimated size aloft.
The Apr 14, 2026 convective day was bigger than Deforest: the same system put hail over 476 other tracked cities, 94 of them in Wisconsin. Nearest: Madison (7 miles south, up to 2.5"); Cottage Grove (9 miles southeast, up to 2.5"); Deerfield (12 miles southeast, up to 2").
These maps are stills from Deforest's Apr 14, 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
9 reports Hail size 2.75"
2 NE Maple Bluff Dane County
“Trained spotter estimates baseball sized hail. (MKX)”
— NOAA / SPC storm report
Hail size 1"
2 N Maple Bluff Dane County
“Report from mPING: Quarter (1.00 in.). (MKX)”
— NOAA / SPC storm report
Hail size 1.25"
1 SW Sun Prairie Dane County
“Report from mPING: Half Dollar (1.25 in.). (MKX)”
— NOAA / SPC storm report
Hail size 1.25"
3 W Sun Prairie Dane County
“Report from mPING: Half Dollar (1.25 in.). (MKX)”
— NOAA / SPC storm report
Hail size 1.75"
3 NE Maple Bluff Dane County
“Report from mPING: Golf Ball (1.75 in.). (MKX)”
— NOAA / SPC storm report
Hail size 1.25"
2 W Sun Prairie Dane County
“Report from mPING: Half Dollar (1.25 in.). (MKX)”
— NOAA / SPC storm report
Hail size 1"
1 SW Sun Prairie Dane County
“(MKX)”
— NOAA / SPC storm report
Hail size 1"
1 NW Sun Prairie Dane County
“Report from mPING: Quarter (1.00 in.). (MKX)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
Hail was reported over 114 minutes, from to .
Reports came from Maple Bluff and Sun Prairie — beyond Deforest itself.
What 2.25" hail means for Deforest 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.
What this storm is worth to a roofer
$85M
Potential roof exposure — 7,074 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
35 jobs
Illustrative work
~$525K
Claims from this storm can typically be filed until around April 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Deforest on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Deforest storm history — this Apr 14, 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
Deforest hail history
← All hail in Deforest 2 recorded storm days in Deforest, WI
Other storms in Deforest
A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar surfaces are detections and estimates,
not confirmed damage. Last updated Aug 3, 2026.