Hail size 1"
1 S Hanover Park DuPage County
“Public report of quarter size hail relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail in Bartlett Jul 27, 2026
Hit 7 days agoThe radar-estimated size surface caught this storm, reaching 1.5" aloft. NEXRAD logged no point detections over Bartlett this day.
Largest hailstone
1.5"
≈ ping-pong ball · radar-estimated size aloft Homes in the hail footprint
47,351
Ground reports
1
1 hailThe 2nd most severe storm Bartlett 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.
4.8 /10
- Hail size
- 38 /100
- Homes exposed
- 94 /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 Bartlett saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar-estimated hail size
Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Max size
1.5"
Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Bartlett, so there is one map to show, not two.
Where Jul 27, 2026 sits in Bartlett's hail record
This was Bartlett's 6th recorded hail day, arriving 24 days after the Jul 3, 2026 storm. By severity it ranks 2nd of the 6 storms we have logged here. Radar put the day's largest stone over Bartlett at 1.5" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Bartlett: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Schaumburg (5 miles east, up to 2"); South Barrington (7 miles north, up to 1.5"); West Chicago (7 miles south, up to 1.25").
These maps are stills from Bartlett'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
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 Hanover Park — beyond Bartlett itself.
What 1.5" hail means for Bartlett 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
$568M
Potential roof exposure — 47,351 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
237 jobs
Illustrative work
~$3.6M
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Bartlett on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Bartlett 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
Bartlett hail history
← All hail in Bartlett 6 recorded storm days in Bartlett, IL
Other storms in Bartlett
Jul 3, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed 
Jul 2, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed 
Jun 24, 2026
0.5" Estimated 0.5"
1
ground report 
May 4, 2026
0.75" Signatures 0.75"
No ground reports filed 
Apr 14, 2026
1" Estimated 1"
2
ground reports
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.