Hail in Schaumburg · May 4, 2026
NEXRAD logged 13 hail signatures up to 0.75"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
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Convective day · May 4, 2026 · noon–noon UTC
Severity
The 5th most severe storm Schaumburg 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
- 19 /100
- Homes exposed
- 85 /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 Schaumburg 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.
Radar signature field NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Only the NEXRAD radar-signature surface resolved for May 4, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where May 4, 2026 sits in Schaumburg's hail record.
This was Schaumburg's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 5th of the 6 storms we have logged here. Radar put the day's largest stone over Schaumburg at 0.75" — the largest NEXRAD radar signature.
The May 4, 2026 convective day was bigger than Schaumburg: the same system put hail over 428 other tracked cities, 239 of them in Illinois. Nearest: Bartlett (5 miles west, up to 0.75"); West Chicago (9 miles southwest, up to 1"); South Elgin (10 miles west, up to 0.75").
These maps are stills. In the app this date is one of 6 Schaumburg 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.
Nobody on the ground filed a report over Schaumburg for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
Near the severe threshold
What 0.75" hail means for Schaumburg roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$218M
Potential roof exposure — 18,193 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 91 jobs
- Illustrative work
- ~$1.4M
Close just 0.5% of the 18,193 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
May 2028
Claims from this storm can typically be filed until around May 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 $3,821 on top of the $150 plan.
Schaumburg hail history
Other storms in Schaumburg.
Estimated-size surface Aug 9, 2026
1"
Estimated-size surface Jul 27, 2026
2"
Estimated-size surface Jul 3, 2026
1.75"
Estimated-size surface Jul 2, 2026
1"
Estimated-size surface Jun 24, 2026
0.5"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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