Hail size 1"
1 SSW Brookfield Cook County
“Time estimated via radar. (LOT)”
— NOAA / SPC storm report
/ Storm field report · Cook
Hail in Western Springs · Mar 30, 2026
NEXRAD logged 0 hail signatures up to 1.75"; the estimated-size surface reached 1.5" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.75" ≈ golf ball · the largest NEXRAD radar signature
Homes in the hail footprint 57,353
Ground reports 9 9 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Mar 30, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Western Springs has seen in the last 12 months
Composite score · 6.5 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.5 /10
- Peak hail signal
- 44 /100
- Homes exposed
- 95 /100
- Ground truth
- 100 /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 Western Springs saw the hail — from two instruments
Mar 30, 2026 · Western Springs, IL
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
NEXRAD radar signatures Surface resolved
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
1.75"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
1.5"
The storm in context
Where Mar 30, 2026 sits in Western Springs's hail record.
This was Western Springs's 3rd recorded hail day, arriving 4 days after the Mar 26, 2026 storm. By severity it ranks 2nd of the 4 storms we have logged here. Radar put the day's largest stone over Western Springs at 1.75" — the largest NEXRAD radar signature.
The Mar 30, 2026 convective day was bigger than Western Springs: the same system put hail over 313 other tracked cities, 70 of them in Illinois. Nearest: Berwyn (5 miles east, up to 1.75"); Downers Grove (5 miles west, up to 1.75"); Willow Springs (7 miles south, up to 1").
These maps are stills. In the app this date is one of 4 Western Springs 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
9 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
9 reports Hail size 1.25"
1 N McCook Cook County
“(LOT)”
— NOAA / SPC storm report
Hail size 1.75"
1 W Oak Brook DuPage County
“Time estimated via radar. (LOT)”
— NOAA / SPC storm report
Hail size 1.75"
1 N Hinsdale DuPage County
“(LOT)”
— NOAA / SPC storm report
Hail size 1"
1 S Oak Brook DuPage County
“Report relayed via EM. Time estimated from radar. (LOT)”
— NOAA / SPC storm report
Hail size 1.5"
1 SSW Oak Brook DuPage County
“Time estimated via radar. (LOT)”
— NOAA / SPC storm report
Hail size 1"
Westchester Cook County
“(LOT)”
— NOAA / SPC storm report
Hail size 1"
La Grange Park Cook County
“Time estimated via radar. (LOT)”
— NOAA / SPC storm report
Hail size 1"
La Grange Park Cook County
“Report from mPING: Quarter (1.00 in.). (LOT)”
— 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 18 minutes, from to .
Reports came from Brookfield, Mccook, Oak Brook, Hinsdale, Westchester, and La Grange Park — beyond Western Springs itself.
High damage potential
What 1.75" hail means for Western Springs 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.
57,353 homes × $12,000 avg. claim
Potential roof exposure
$688M
Potential roof exposure — 57,353 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 287 jobs
- Illustrative work
- ~$4.3M
Close just 0.5% of the 57,353 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
March 2028
Claims from this storm can typically be filed until around March 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 $12,044 on top of the $150 plan.
Western Springs hail history
Other storms in Western Springs.
4 recorded storm days in Western Springs, IL
Estimated-size surface Storm date Western Springs / IL
Jul 27, 2026
2.25" Estimated 2.25"
13 ground reports Open report →
NEXRAD surface Storm date Western Springs / IL
Mar 26, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Western Springs / IL
Mar 10, 2026
1.25" Estimated 1.25"
7 ground reports 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 3, 2026.