Storm report · Cook

Hail in Palos Hills Jul 27, 2026

Hit 7 days ago

The radar-estimated size surface caught this storm, reaching 2.75" aloft. NEXRAD logged no point detections over Palos Hills this day. At 2.75" — baseball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.

Largest hailstone

2.75"

≈ baseball · radar-estimated size aloft
Homes in the hail footprint

89,180

Ground reports

3

1 hail · 2 wind
Severity

The most severe storm Palos Hills 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.

7.4 /10
Hail size
69 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
99 /100

How many homes sit inside the storm's footprint.

Ground truth
50 /100

Independent storm reports filed with the NWS.

Two ways to read the storm

How Palos Hills 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
Radar-estimated hail-size map of the storm over Palos Hills, IL on Jul 27, 2026

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 2.75"

Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Palos Hills, so there is one map to show, not two.

The storm in context

Where Jul 27, 2026 sits in Palos Hills's hail record

This was Palos Hills's 4th recorded hail day, arriving 24 days after the Jul 3, 2026 storm. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Palos Hills at 2.75" — radar-estimated size aloft.

The Jul 27, 2026 convective day was bigger than Palos Hills: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Bridgeview (0 miles north, up to 2.75"); Willow Springs (5 miles west, up to 4"); Tinley Park (7 miles south, up to 3").

These maps are stills from Palos Hills'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.

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.

Hail reports

1 report
Hail size 1"
1 NW Oak Lawn 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 74 mph
3.0 SW Midway Airport Cook County

“Also observed nickel sized hail and 2.83 inches of rainfall. (LOT)”

— NOAA / SPC storm report
Storm forensics

How the storm moved

Hail was reported over 11 minutes, from to .

Reports came from Oak Lawn, Palos Park, and Midway Airport — beyond Palos Hills itself.

Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Severe, roof-replacing hail

What 2.75" hail means for Palos Hills 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

$1.1B

Potential roof exposure — 89,180 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
446 jobs
Illustrative work
~$6.7M
Close just 0.5% of the 89,180 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.
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 Palos Hills on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Palos Hills 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

Palos Hills hail history

4 recorded storm days in Palos Hills, IL

← All hail in Palos Hills

Other storms in Palos Hills

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.