Hail size 1"
1 NNE Yorkville Kendall County
“Photo shared to office email account showing hail measuring 1 inch in diameter. (LOT)”
— NOAA / SPC storm report
/ Storm field report · Kendall
Hail in Yorkville · 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 34,039
Ground reports 6 6 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Mar 30, 2026 · noon–noon UTC
Severity
The most severe storm Yorkville has seen in the last 12 months
Composite score · 6.4 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.4 /10
- Peak hail signal
- 44 /100
- Homes exposed
- 91 /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 Yorkville saw the hail — from two instruments
Mar 30, 2026 · Yorkville, 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.
NEXRAD radar signatures Surface resolved
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.
Max size
1.75"
Detections
0
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
1.5"
The storm in context
Where Mar 30, 2026 sits in Yorkville's hail record.
This was Yorkville's 3rd recorded hail day, arriving 4 days after the Mar 26, 2026 storm. By severity it ranks 1st of the 11 storms we have logged here. Radar put the day's largest stone over Yorkville at 1.75" — the largest NEXRAD radar signature.
The Mar 30, 2026 convective day was bigger than Yorkville: the same system put hail over 313 other tracked cities, 70 of them in Illinois. Nearest: Plano (5 miles west, up to 2.5"); Oswego (5 miles east, up to 1.75"); Aurora (9 miles northeast, up to 1.75").
These maps are stills. In the app this date is one of 11 Yorkville 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
6 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
6 reports Hail size 1"
2 W Oswego Kendall County
“(LOT)”
— NOAA / SPC storm report
Hail size 1.25"
3 SE Sugar Grove Kane County
“Report from mPING: Half Dollar (1.25 in.). (LOT)”
— NOAA / SPC storm report
Hail size 1"
2 NW Montgomery Kane County
“(LOT)”
— NOAA / SPC storm report
Hail size 1"
Boulder Hill Kendall County
“Time estimated from radar. (LOT)”
— NOAA / SPC storm report
Hail size 1"
Big Rock Kane County
“(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 28 minutes, from to .
Reports came from Oswego, Sugar Grove, Montgomery, Boulder Hill, and Big Rock — beyond Yorkville itself.
High damage potential
What 1.75" hail means for Yorkville 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.
34,039 homes × $12,000 avg. claim
Potential roof exposure
$408M
Potential roof exposure — 34,039 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 170 jobs
- Illustrative work
- ~$2.6M
Close just 0.5% of the 34,039 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 $7,148 on top of the $150 plan.
Yorkville hail history
Other storms in Yorkville.
11 recorded storm days in Yorkville, IL
Estimated-size surface Storm date Yorkville / IL
Aug 11, 2026
0.75" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Yorkville / IL
Jul 27, 2026
1.25" Signatures 1" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Yorkville / IL
Jul 4, 2026
1.5" Signatures 1.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Yorkville / IL
Jul 3, 2026
1.75" Signatures 1.75" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Yorkville / IL
Jul 2, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Yorkville / IL
Jun 10, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
NEXRAD surface Storm date Yorkville / IL
Apr 21, 2026
0.5" Signatures 0.5"
No ground reports filed Open report →
NEXRAD surface Storm date Yorkville / IL
Apr 17, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Yorkville / IL
Mar 26, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Yorkville / IL
Mar 10, 2026
0.75" Estimated 0.75"
2 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 12, 2026.