Hail size 1"
1 S Joliet Will County
“1 hail reported via trained weather spotter. (LOT)”
— NOAA / SPC storm report
/ Storm field report · Will
Hail in Joliet · Jul 3, 2026
NEXRAD logged 11 hail signatures up to 1.5"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.5" ≈ ping-pong ball · the largest NEXRAD radar signature
Homes in the hail footprint 5,390
Ground reports 3 2 hail · 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jul 3, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Joliet has seen in the last 12 months
Composite score · 4.9 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.9 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 75 /100
- Ground truth
- 50 /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 Joliet saw the hail — from two instruments
Jul 3, 2026 · Joliet, 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
1.5"
Detections
11
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
0.75"
The storm in context
Where Jul 3, 2026 sits in Joliet's hail record.
This was Joliet's 3rd recorded hail day, arriving 1 day after the Jul 2, 2026 storm. By severity it ranks 3rd of the 4 storms we have logged here. Radar put the day's largest stone over Joliet at 1.5" — the largest NEXRAD radar signature.
The Jul 3, 2026 convective day was bigger than Joliet: the same system put hail over 1,885 other tracked cities, 215 of them in Illinois. Nearest: Rockdale (0 miles north, up to 1.5"); Shorewood (5 miles west, up to 1.5"); New Lenox (5 miles east, up to 1.5").
These maps are stills. In the app this date is one of 4 Joliet 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
3 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
2 reports Hail size 1"
Rockdale Will County
“Quarter size hail. Time estimated. (LOT)”
— NOAA / SPC storm report
Wind reports
1 report Wind gust 60 mph
Rockdale Will County
“Estimated winds to 60 mph. Time Estimated. (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.
Reports came from Rockdale — beyond Joliet itself.
High damage potential
What 1.5" hail means for Joliet 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.
5,390 homes × $12,000 avg. claim
Potential roof exposure
$65M
Potential roof exposure — 5,390 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 27 jobs
- Illustrative work
- ~$405K
Close just 0.5% of the 5,390 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 $1,132 on top of the $150 plan.
Joliet hail history
Other storms in Joliet.
4 recorded storm days in Joliet, IL
Estimated-size surface Storm date Joliet / IL
Jul 27, 2026
1.75" Estimated 1.75"
6 ground reports Open report →
Estimated-size surface Storm date Joliet / IL
Jul 2, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Joliet / IL
Mar 31, 2026
2.5" Signatures 2.5" Estimated 1.25"
5 ground reports Open report →
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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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.