Hail size 1.75"
2 NE Mokena Will County
“Relayed via mping. Time estimated by radar. (LOT)”
— NOAA / SPC storm report
Hail in Tinley Park Jul 27, 2026
Hit 7 days agoThe radar-estimated size surface caught this storm, reaching 3" aloft. NEXRAD logged no point detections over Tinley Park this day. At 3" — baseball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
3"
≈ baseball · radar-estimated size aloft Homes in the hail footprint
57,394
Ground reports
7
5 hail · 2 windThe most severe storm Tinley Park 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.
8.4 /10
- Hail size
- 75 /100
- Homes exposed
- 95 /100
- Ground truth
- 100 /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 Tinley 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.
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
3"
Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Tinley Park, so there is one map to show, not two.
Where Jul 27, 2026 sits in Tinley Park's hail record
This was Tinley Park's 7th recorded hail day, arriving 7 days after the Jul 20, 2026 storm. By severity it ranks 1st of the 7 storms we have logged here. Radar put the day's largest stone over Tinley Park at 3" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Tinley Park: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Orland Park (5 miles west, up to 4"); Hazel Crest (5 miles east, up to 2"); Markham (5 miles east, up to 2").
These maps are stills from Tinley Park'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
5 reports Hail size 1.75"
1 NE Tinley Park Cook County
“(LOT)”
— NOAA / SPC storm report
Hail size 1"
1 W Oak Forest Cook County
“Relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail size 1"
Oak Forest Cook County
“Also estimated 60 mph winds. (LOT)”
— NOAA / SPC storm report
Hail size 1"
1 W Midlothian Cook County
“Relayed via mping. Time estimated by radar. (LOT)”
— NOAA / SPC storm report
Wind reports
2 reports Wind gust 66 mph
1 S Palos Park Cook County
“Private weather station KILPALOS2 reported 66 mph gust. (LOT)”
— NOAA / SPC storm report
Wind gust 68 mph
1 NNW Oak Forest Cook County
“Private weather station KILOAKFO13 reported 68 mph gust. Last observation prior to power outage. (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
The storm tracked northeast at roughly 5 mph, based on the timing of ground reports.
Hail was reported over 31 minutes, from to .
Reports came from Mokena, Oak Forest, Midlothian, and Palos Park — beyond Tinley Park itself.
What 3" hail means for Tinley Park 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
$689M
Potential roof exposure — 57,394 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
287 jobs
Illustrative work
~$4.3M
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 Tinley Park on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Tinley Park 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
Tinley Park hail history
← All hail in Tinley Park 7 recorded storm days in Tinley Park, IL
Other storms in Tinley Park
Jul 20, 2026
Jul 3, 2026
1.5" Signatures 1.5" Estimated 1"
No ground reports filed 
May 4, 2026
0.75" Signatures 0.75"
No ground reports filed 
Apr 21, 2026
1" Signatures 1"
No ground reports filed 
Apr 2, 2026
Mar 26, 2026
1.5" Signatures 1.5" Estimated 0.5"
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.