/ Storm field report · Christian

Hail in Mount Auburn · Jun 17, 2026

The estimated-size surface reached 2.75" aloft; NEXRAD logged no point detections over Mount Auburn that day. At 2.75" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.

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Peak hail signal 2.75" ≈ baseball · radar-estimated size aloft
Homes in the hail footprint 2,148
Ground reports 5 5 hail
Radar surfaces 1 Estimated size only

Convective day · Jun 17, 2026 · noon–noon UTC

Severity

The most severe storm Mount Auburn has seen in the last 12 months

Composite score · 7.0 / 10
Storm severity score

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

7.0 /10
Peak hail signal
69 /100

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

Homes exposed
67 /100

How many homes sit inside the storm's footprint.

Ground truth
83 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Mount Auburn saw the hail — from two instruments

Jun 17, 2026 · Mount Auburn, IL

We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Mount Auburn, IL on Jun 17, 2026 Estimated size field

Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.

Max size 2.75"

Only the radar-estimated size surface resolved for Jun 17, 2026 — this storm produced no NEXRAD point detections over Mount Auburn, so there is one map to show, not two.

The storm in context

Where Jun 17, 2026 sits in Mount Auburn's hail record.

This was Mount Auburn's 3rd recorded hail day, arriving 51 days after the Apr 27, 2026 storm. By severity it ranks 1st of the 3 storms we have logged here. Radar put the day's largest stone over Mount Auburn at 2.75" — radar-estimated size aloft.

The Jun 17, 2026 convective day was bigger than Mount Auburn: the same system put hail over 294 other tracked cities, 134 of them in Illinois. Nearest: Illiopolis (4 miles northwest, up to 2.5"); Blue Mound (7 miles south, up to 2"); Edinburg (9 miles southwest, up to 1.75").

These maps are stills. In the app this date is one of 3 Mount Auburn 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

5 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

5 reports
Hail size 2"
2 SE Niantic Macon County

“(ILX)”

— NOAA / SPC storm report
Hail size 1.75"
Illiopolis Sangamon County

“Corrects previous hail report from Illiopolis. Golf Ball size hail. Time estimated from radar. (ILX)”

— NOAA / SPC storm report
Hail size 1.75"
Illiopolis Sangamon County

“Golf Ball size hail. (ILX)”

— NOAA / SPC storm report
Hail size 1.75"
1 W Illiopolis Sangamon County

“Corrects previous hail report from 1 W Illiopolis. Report from mPING: Golf Ball (1.75 in.). Time estimated from radar. (ILX)”

— NOAA / SPC storm report
Hail size 1.75"
1 W Illiopolis Sangamon County

“Report from mPING: Golf Ball (1.75 in.). (ILX)”

— 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.

Hail was reported over 15 minutes, from to .

Reports came from Niantic and Illiopolis — beyond Mount Auburn itself.

Severe hail signal

What 2.75" hail means for Mount Auburn roofs.

Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

2,148 homes × $12,000 avg. claim

Potential roof exposure

$26M

Potential roof exposure — 2,148 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
11 jobs
Illustrative work
~$165K

Close just 0.5% of the 2,148 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

June 2028

Claims from this storm can typically be filed until around June 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 $451 on top of the $150 plan.

Mount Auburn hail history

3 recorded storm days in Mount Auburn, 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 2, 2026.