/ Storm field report · Cook

Hail in Berwyn · Jul 27, 2026

The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Berwyn that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 1.5" ≈ ping-pong ball · radar-estimated size aloft
Homes in the hail footprint 175,643
Ground reports 3 1 hail · 2 wind
Radar surfaces 1 Estimated size only

Convective day · Jul 27, 2026 · noon–noon UTC

Severity

The 2nd most severe storm Berwyn has seen in the last 12 months

Composite score · 5.5 / 10
Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

5.5 /10
Peak hail signal
38 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
100 /100

How many homes sit inside the storm's footprint.

Ground truth
50 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Berwyn saw the hail — from two instruments

Jul 27, 2026 · Berwyn, IL

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 Surface resolved
Radar-estimated hail-size map of the storm over Berwyn, IL on Jul 27, 2026 Estimated size field

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 1.5"

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

The storm in context

Where Jul 27, 2026 sits in Berwyn's hail record.

This was Berwyn's 4th recorded hail day, arriving 33 days after the Jun 24, 2026 storm. By severity it ranks 2nd of the 5 storms we have logged here. Radar put the day's largest stone over Berwyn at 1.5" — radar-estimated size aloft.

The Jul 27, 2026 convective day was bigger than Berwyn: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Western Springs (5 miles west, up to 2.25"); Bridgeview (7 miles south, up to 2.75"); Palos Hills (7 miles south, up to 2.75").

These maps are stills. In the app this date is one of 5 Berwyn 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

3 reports filed with the NWS

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 1.5"
1 E La Grange Park Cook County

“Relayed via mping. (LOT)”

— NOAA / SPC storm report

Wind reports

2 reports
Wind gust 74 mph
Midway Airport Cook County

“(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

Timing and place names from NOAA ground reports

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

The storm tracked southeast at roughly 5 mph, based on the timing of ground reports.

Hail was reported over 69 minutes, from to .

Reports came from La Grange Park and Midway Airport — beyond Berwyn itself.

High damage potential

What 1.5" hail means for Berwyn roofs.

Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

175,643 homes × $12,000 avg. claim

Potential roof exposure

$2.1B

Potential roof exposure — 175,643 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
878 jobs
Illustrative work
~$13M

Close just 0.5% of the 175,643 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

July 2028

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.

Names and phones for every home in the footprint: at most $36,885 on top of the $150 plan.

Berwyn hail history

5 recorded storm days in Berwyn, IL

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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 10, 2026.