/ Storm field report · Effingham

Hail in Mason · Apr 27, 2026

NEXRAD logged 7 hail signatures up to 1"; the estimated-size surface reached 0.5" 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 206
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

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

Severity

The 4th most severe storm Mason has seen in the last 12 months

Composite score · 2.7 / 10
Storm severity score

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

2.7 /10
Peak hail signal
25 /100

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

Homes exposed
46 /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 Mason saw the hail — from two instruments

Apr 27, 2026 · Mason, 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 Mason, IL on Apr 27, 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 7
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Mason, IL on Apr 27, 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 0.5"

The storm in context

Where Apr 27, 2026 sits in Mason's hail record.

This was Mason's 3rd recorded hail day, arriving 54 days after the Mar 4, 2026 storm. By severity it ranks 4th of the 9 storms we have logged here. Radar put the day's largest stone over Mason at 1" — the largest NEXRAD radar signature.

The Apr 27, 2026 convective day was bigger than Mason: the same system put hail over 1,188 other tracked cities, 336 of them in Illinois. Nearest: Dieterich (5 miles east, up to 1"); Edgewood (7 miles south, up to 1"); Teutopolis (9 miles northeast, up to 1").

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

The National Weather Service logged no spotter reports for this storm over Mason. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.

Damage-capable hail signal

What 1" hail means for Mason 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.

206 homes × $12,000 avg. claim

Potential roof exposure

$2.5M

Potential roof exposure — 206 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
1 job
Illustrative work
~$15K

Close just 0.5% of the 206 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

April 2028

Claims from this storm can typically be filed until around April 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 $43 on top of the $150 plan.

Mason hail history

9 recorded storm days in Mason, IL

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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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 20, 2026.