/ Storm field report · Kane

Hail in Maple Park · Aug 21, 2026

Hit 22 days ago

The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Maple Park that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 1" ≈ quarter · radar-estimated size aloft

Homes in the hail footprint 1,008

Ground reports 1 1 hail

Radar surfaces 1 Estimated size only

Convective day · Aug 21, 2026 · noon–noon UTC

Severity

The 3rd most severe storm Maple Park has seen in the last 12 months

Composite score · 3.3 / 10

Storm severity score

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

3.3 /10

Peak hail signal: 25 /100
Homes exposed: 60 /100
Ground truth: 17 /100

Evidence / storm surfaces

How Maple Park saw the hail — from two instruments

Aug 21, 2026 · Maple Park, 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 map of the storm over Maple Park, IL on Aug 21, 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 1"

Only the radar-estimated size surface resolved for Aug 21, 2026 — this storm produced no NEXRAD point detections over Maple Park, so there is one map to show, not two.

The storm in context

Where Aug 21, 2026 sits in Maple Park's hail record.

This was Maple Park's 9th recorded hail day, arriving 25 days after the Jul 27, 2026 storm. By severity it ranks 3rd of the 9 storms we have logged here. Radar put the day's largest stone over Maple Park at 1" — radar-estimated size aloft.

The Aug 21, 2026 convective day was bigger than Maple Park: the same system put hail over 659 other tracked cities, 93 of them in Illinois. Nearest: Sycamore (5 miles west, up to 1"); Kingston (12 miles northwest, up to 1.25"); Kirkland (17 miles northwest, up to 1.25").

These maps are stills. In the app this date is one of 9 Maple 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

1 report 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"

3 E Sycamore De Kalb County

8:09 PM UTC

“Report from mPING: Quarter (1.00 in.). (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.

Reports came from Sycamore — beyond Maple Park itself.

Damage-capable hail signal

What 1" hail means for Maple Park roofs.

Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

1,008 homes × $12,000 avg. claim

Potential roof exposure

$12M

Potential roof exposure — 1,008 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs: 5 jobs
Illustrative work: ~$75K

Close just 0.5% of the 1,008 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

August 2028

Claims from this storm can typically be filed until around August 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 $212 on top of the $150 plan.

Maple Park hail history

9 recorded storm days in Maple Park, IL

← All hail in Maple Park

Radar-estimated hail-size map of the storm over Maple Park, IL on Jul 27, 2026

Estimated-size surface

Storm date Maple Park / IL

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See the hail, review your recommendations, and canvass with Overview on iPhone.

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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 22, 2026.

The 3rd most severe storm Maple Park has seen in the last 12 months

How Maple Park saw the hail — from two instruments

Where Aug 21, 2026 sits in Maple Park's hail record.

What people on the ground reported

Hail reports

How the storm moved

What 1" hail means for Maple Park roofs.

What this storm is worth to a roofer.

Other storms in Maple Park.

Jul 27, 2026

Jul 4, 2026

Jul 3, 2026

May 4, 2026

Apr 14, 2026

Mar 31, 2026

Mar 30, 2026

Mar 26, 2026

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