/ Storm field report · Cook

Hail in Palos Hills · Mar 30, 2026

NEXRAD logged 0 hail signatures up to 1"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 1" ≈ quarter · the largest NEXRAD radar signature
Homes in the hail footprint 23,012
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Mar 30, 2026 · noon–noon UTC

Severity

The 3rd most severe storm Palos Hills has seen in the last 12 months

Composite score · 3.7 / 10
Storm severity score

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

3.7 /10
Peak hail signal
25 /100

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

Homes exposed
87 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Palos Hills saw the hail — from two instruments

Mar 30, 2026 · Palos Hills, IL

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.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Palos Hills, IL on Mar 30, 2026 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.

Max size 1" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Palos Hills, IL on Mar 30, 2026 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.

Max size 0.75"

The storm in context

Where Mar 30, 2026 sits in Palos Hills's hail record.

This was Palos Hills's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 3rd of the 4 storms we have logged here. Radar put the day's largest stone over Palos Hills at 1" — the largest NEXRAD radar signature.

The Mar 30, 2026 convective day was bigger than Palos Hills: the same system put hail over 313 other tracked cities, 70 of them in Illinois. Nearest: Willow Springs (5 miles west, up to 1"); Berwyn (7 miles north, up to 1.75"); Western Springs (9 miles northwest, up to 1.75").

These maps are stills. In the app this date is one of 4 Palos Hills 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

No 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.

No ground reports were filed with the National Weather Service for this storm over Palos Hills. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.

Damage-capable hail signal

What 1" hail means for Palos Hills 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.

23,012 homes × $12,000 avg. claim

Potential roof exposure

$276M

Potential roof exposure — 23,012 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
115 jobs
Illustrative work
~$1.7M

Close just 0.5% of the 23,012 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

March 2028

Claims from this storm can typically be filed until around March 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 $4,833 on top of the $150 plan.

Palos Hills hail history

4 recorded storm days in Palos Hills, 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 3, 2026.