Hail in Grant Park Jun 11, 2026
The radar-estimated size surface caught this storm, reaching 1" aloft. NEXRAD logged no point detections over Grant Park this day.
1"
≈ quarter · radar-estimated size aloft2,065
0
none filedThe 2nd most severe storm Grant Park has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 66 /100
- Ground truth
- 0 /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 Grant Park 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.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Only the radar-estimated size surface resolved for Jun 11, 2026 — this storm produced no NEXRAD point detections over Grant Park, so there is one map to show, not two.
Where Jun 11, 2026 sits in Grant Park's hail record
This was Grant Park's 6th recorded hail day, arriving 38 days after the May 4, 2026 storm. By severity it ranks 2nd of the 9 storms we have logged here. Radar put the day's largest stone over Grant Park at 1" — radar-estimated size aloft.
The Jun 11, 2026 convective day was bigger than Grant Park: the same system put hail over 648 other tracked cities, 157 of them in Illinois. Nearest: Manteno (9 miles southwest, up to 1"); Beecher (9 miles northeast, up to 0.75"); Bourbonnais (12 miles southwest, up to 0.75").
These maps are stills from Grant Park's Jun 11, 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.
The National Weather Service logged no spotter reports for this storm over Grant Park. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
What 1" hail means for Grant Park roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$25M
Potential roof exposure — 2,065 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Grant Park on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Grant Park storm history — this Jun 11, 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
9 recorded storm days in Grant Park, IL
Other storms in Grant Park
Jul 27, 2026
0.75"
Jul 20, 2026
Jul 18, 2026
0.5"
May 4, 2026
Apr 13, 2026
1.25"
Mar 31, 2026
0.5"
Mar 26, 2026
Mar 10, 2026
2"