Hail size 1"
4 SE Loyal Clark County
“(ARX)”
— NOAA / SPC storm report
Hail in Spencer May 27, 2026
Both radar surfaces caught this storm: NEXRAD logged 14 hail signatures up to 1.75", and the radar-estimated size reached 1" aloft.
Largest hailstone
1.75"
≈ golf ball · the largest NEXRAD radar signature Homes in the hail footprint
416
Ground reports
1
1 hailThe 2nd most severe storm Spencer 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.
4.2 /10
- Hail size
- 44 /100
- Homes exposed
- 52 /100
- Ground truth
- 17 /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 Spencer 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
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.
Max size
1.75"
Detections
14
Radar-estimated hail size
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
1"
Where May 27, 2026 sits in Spencer's hail record
This was Spencer's 4th recorded hail day, arriving 10 days after the May 17, 2026 storm. By severity it ranks 2nd of the 7 storms we have logged here. Radar put the day's largest stone over Spencer at 1.75" — the largest NEXRAD radar signature.
The May 27, 2026 convective day was bigger than Spencer: the same system put hail over 172 other tracked cities, 38 of them in Wisconsin. Nearest: Loyal (7 miles west, up to 1.75"); Marshfield (14 miles southeast, up to 1.25"); Withee (16 miles northwest, up to 1").
These maps are stills from Spencer's May 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
1 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
Reports came from Loyal — beyond Spencer itself.
What 1.75" hail means for Spencer roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
What this storm is worth to a roofer
$5M
Potential roof exposure — 416 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
2 jobs
Illustrative work
~$30K
Claims from this storm can typically be filed until around May 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Spencer on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Spencer storm history — this May 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
Spencer hail history
← All hail in Spencer 7 recorded storm days in Spencer, WI
Other storms in Spencer
Jun 24, 2026
1" Estimated 1"
No ground reports filed 
Jun 10, 2026
0.5" Estimated 0.5"
No ground reports filed 
Jun 9, 2026
0.75" Estimated 0.75"
No ground reports filed 
May 17, 2026
1" Signatures 1"
No ground reports filed 
Apr 13, 2026
2.75" Signatures 2.75" Estimated 1.75"
6
ground reports 
Mar 30, 2026
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 2, 2026.