Hail in Tinley Park · May 4, 2026
NEXRAD logged 15 hail signatures up to 0.75"; the estimated-size surface reached 0" aloft. Open it on the live map to see the swath over the streets.
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Convective day · May 4, 2026 · noon–noon UTC
Severity
The 6th most severe storm Tinley Park has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 19 /100
- Homes exposed
- 83 /100
- Ground truth
- 0 /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 Tinley Park saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
The storm in context
Where May 4, 2026 sits in Tinley Park's hail record.
This was Tinley Park's 4th recorded hail day, arriving 13 days after the Apr 21, 2026 storm. By severity it ranks 6th of the 8 storms we have logged here. Radar put the day's largest stone over Tinley Park at 0.75" — the largest NEXRAD radar signature.
The May 4, 2026 convective day was bigger than Tinley Park: the same system put hail over 428 other tracked cities, 239 of them in Illinois. Nearest: Markham (5 miles east, up to 1.25"); Orland Park (5 miles west, up to 0.75"); South Holland (10 miles east, up to 1.25").
These maps are stills. In the app this date is one of 8 Tinley Park 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
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.
For this storm over Tinley Park, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
Near the severe threshold
What 0.75" hail means for Tinley Park 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.
Potential roof exposure
$160M
Potential roof exposure — 13,336 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 67 jobs
- Illustrative work
- ~$1M
Close just 0.5% of the 13,336 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
May 2028
Claims from this storm can typically be filed until around May 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 $2,801 on top of the $150 plan.
Tinley Park hail history
Other storms in Tinley Park.
Estimated-size surface Aug 9, 2026
1"
Estimated-size surface Jul 27, 2026
3"
NEXRAD surface Jul 20, 2026
Estimated-size surface Jul 3, 2026
1.5"
NEXRAD surface Apr 21, 2026
1"
NEXRAD surface Apr 2, 2026
Estimated-size surface Mar 26, 2026
1.5"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.