Hail size 2"
Bradley Kankakee County
“Hail broke windows in Bradley. (LOT)”
— NOAA / SPC storm report
Hail in Bourbonnais Mar 10, 2026
The radar-estimated size surface caught this storm, reaching 2" aloft. NEXRAD logged no point detections over Bourbonnais this day. At 2" — tennis ball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
2"
≈ tennis ball · radar-estimated size aloft Homes in the hail footprint
16,417
Ground reports
4
4 hailThe most severe storm Bourbonnais 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.
6.1 /10
- Hail size
- 50 /100
- Homes exposed
- 84 /100
- Ground truth
- 67 /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 Bourbonnais 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"
Only the radar-estimated size surface resolved for Mar 10, 2026 — this storm produced no NEXRAD point detections over Bourbonnais, so there is one map to show, not two.
Where Mar 10, 2026 sits in Bourbonnais's hail record
This was Bourbonnais's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 6 storms we have logged here. Radar put the day's largest stone over Bourbonnais at 2" — radar-estimated size aloft.
The Mar 10, 2026 convective day was bigger than Bourbonnais: the same system put hail over 470 other tracked cities, 100 of them in Illinois. Nearest: Kankakee (3 miles south, up to 2"); Manteno (5 miles east, up to 2"); Grant Park (12 miles northeast, up to 2").
These maps are stills from Bourbonnais's Mar 10, 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
4 reports Hail size 4.5"
1 NNE Kankakee Kankakee County
“(LOT)”
— NOAA / SPC storm report
Hail size 4.5"
1 W Bourbonnais Kankakee County
“Correction to date. Public report of hail up to Grapefruit size near Plum Creek Drive and Braemer Way in Bourbonnais. Time estimated by radar. (LOT)”
— NOAA / SPC storm report
Hail size 3"
Bourbonnais Kankakee County
“Multiple public reports of hail in Bourbonnais. The largest hailstones were measured to be 3 inches in diameter. (LOT)”
— 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 10 minutes, from to .
Reports came from Bradley and Kankakee — beyond Bourbonnais itself.
What 2" hail means for Bourbonnais 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
$197M
Potential roof exposure — 16,417 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
82 jobs
Illustrative work
~$1.2M
Claims from this storm can typically be filed until around March 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Bourbonnais on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Bourbonnais storm history — this Mar 10, 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
Bourbonnais hail history
← All hail in Bourbonnais 6 recorded storm days in Bourbonnais, IL
Other storms in Bourbonnais
Jul 27, 2026
0.5" Estimated 0.5"
No ground reports filed 
Jun 11, 2026
0.75" Estimated 0.75"
No ground reports filed 
Jun 7, 2026
1" Signatures 1"
No ground reports filed 
May 4, 2026
1" Signatures 1"
No ground reports filed 
Mar 31, 2026
1" Signatures 1"
No ground reports filed
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.