Hail size 1"
Vernon Hills Lake County
“Trained spotter reports quarter size hail ongoing in Vernon Hills. (LOT)”
— NOAA / SPC storm report
/ Storm field report · Lake
Hail in Lake Zurich · Aug 9, 2026
Hit 34 days ago
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Lake Zurich 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 45,784
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only
Convective day · Aug 9, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Lake Zurich has seen in the last 12 months
Composite score · 4.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.1 /10
- Peak hail signal
- 25 /100
- Homes exposed
- 93 /100
- Ground truth
- 17 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Lake Zurich saw the hail — from two instruments
Aug 9, 2026 · Lake Zurich, IL
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar-estimated hail size Surface resolved
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Max size
1"
Only the radar-estimated size surface resolved for Aug 9, 2026 — this storm produced no NEXRAD point detections over Lake Zurich, so there is one map to show, not two.
The storm in context
Where Aug 9, 2026 sits in Lake Zurich's hail record.
This was Lake Zurich's 5th recorded hail day, arriving 13 days after the Jul 27, 2026 storm. By severity it ranks 3rd of the 5 storms we have logged here. Radar put the day's largest stone over Lake Zurich at 1" — radar-estimated size aloft.
The Aug 9, 2026 convective day was bigger than Lake Zurich: the same system put hail over 453 other tracked cities, 69 of them in Illinois. Nearest: Hoffman Estates (7 miles south, up to 1"); Arlington Heights (7 miles south, up to 0.75"); Grayslake (7 miles north, up to 0.5").
These maps are stills. In the app this date is one of 5 Lake Zurich 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 reportStorm 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 Vernon Hills — beyond Lake Zurich itself.
Damage-capable hail signal
What 1" hail means for Lake Zurich 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.
45,784 homes × $12,000 avg. claim
Potential roof exposure
$549M
Potential roof exposure — 45,784 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 229 jobs
- Illustrative work
- ~$3.4M
Close just 0.5% of the 45,784 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 $9,615 on top of the $150 plan.
Lake Zurich hail history
Other storms in Lake Zurich.
5 recorded storm days in Lake Zurich, IL
Estimated-size surface Storm date Lake Zurich / IL
Jul 27, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Lake Zurich / IL
Jul 3, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Lake Zurich / IL
Jun 5, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Lake Zurich / IL
Apr 14, 2026
1" Estimated 1"
No ground reports filed Open report →
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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.