Hail in Lake Zurich · Jul 27, 2026
Convective day · Jul 27, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Lake Zurich has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 38 /100
- Homes exposed
- 89 /100
- Ground truth
- 0 /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
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.
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.
Only the radar-estimated size surface resolved for Jul 27, 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 Jul 27, 2026 sits in Lake Zurich's hail record.
This was Lake Zurich's 4th recorded hail day, arriving 24 days after the Jul 3, 2026 storm. By severity it ranks 2nd of the 5 storms we have logged here. Radar put the day's largest stone over Lake Zurich at 1.5" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Lake Zurich: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Long Grove (3 miles east, up to 1.5"); Hoffman Estates (7 miles south, up to 1.75"); Lake Forest (8 miles northeast, up to 1.5").
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
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.
For this storm over Lake Zurich, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
High damage potential
What 1.5" hail means for Lake Zurich roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$348M
Potential roof exposure — 28,969 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 145 jobs
- Illustrative work
- ~$2.2M
Close just 0.5% of the 28,969 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
July 2028
Claims from this storm can typically be filed until around July 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 $6,083 on top of the $150 plan.
Lake Zurich hail history
Other storms in Lake Zurich.
Estimated-size surface Aug 9, 2026
1"
Estimated-size surface Jul 3, 2026
1"
Estimated-size surface Jun 5, 2026
1.75"
Estimated-size surface Apr 14, 2026
1"The next storm won’t wait for you.
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