Wind gust 66 mph
4 SSE Osborn Henry County
“(DVN)”
— NOAA / SPC storm report
/ Storm field report · Henry
Hail in Geneseo · Apr 17, 2026
NEXRAD logged 2 hail signatures up to 0.75"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 0.75" ≈ penny to nickel · the largest NEXRAD radar signature
Homes in the hail footprint 88
Ground reports 1 1 wind
Radar surfaces 1 NEXRAD only
Convective day · Apr 17, 2026 · noon–noon UTC
Severity
The 5th most severe storm Geneseo has seen in the last 12 months
Composite score · 2.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
2.3 /10
- Peak hail signal
- 19 /100
- Homes exposed
- 39 /100
- Ground truth
- 17 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Geneseo saw the hail — from two instruments
Apr 17, 2026 · Geneseo, IL
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 Surface resolved
Radar signature field 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
0.75"
Detections
2
Only the NEXRAD radar-signature surface resolved for Apr 17, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where Apr 17, 2026 sits in Geneseo's hail record.
This was Geneseo's 5th recorded hail day, arriving 4 days after the Apr 13, 2026 storm. By severity it ranks 5th of the 11 storms we have logged here. Radar put the day's largest stone over Geneseo at 0.75" — the largest NEXRAD radar signature.
The Apr 17, 2026 convective day was bigger than Geneseo: the same system put hail over 1,016 other tracked cities, 101 of them in Illinois. Nearest: Aledo (26 miles southwest, up to 0.5"); Knoxville (28 miles south, up to 0"); Buda (29 miles east, up to 1.75").
These maps are stills. In the app this date is one of 11 Geneseo storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
1 report filed with the NWS
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.
Wind reports
1 reportStorm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Osborn — beyond Geneseo itself.
Near the severe threshold
What 0.75" hail means for Geneseo roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
88 homes × $12,000 avg. claim
Potential roof exposure
$1.1M
Potential roof exposure — 88 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
April 2028
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.
Names and phones for every home in the footprint: at most $18 on top of the $150 plan.
Geneseo hail history
Other storms in Geneseo.
11 recorded storm days in Geneseo, IL
Estimated-size surface Storm date Geneseo / IL
Aug 21, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
Aug 7, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
Jul 3, 2026
1.25" Signatures 1.25" Estimated 0.5"
No ground reports filed Open report →
NEXRAD surface Storm date Geneseo / IL
Jun 7, 2026
0.5" Signatures 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
Jun 5, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
May 4, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
Apr 13, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
Apr 2, 2026
2.5" Signatures 2.5" Estimated 1.25"
1 ground report Open report →
NEXRAD surface Storm date Geneseo / IL
Mar 31, 2026
1.25" Signatures 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Geneseo / IL
Mar 10, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 22, 2026.