Hail size 1"
1 SSW Lake in the Hills McHenry County
“McHenry County EMA reports quarter size hail near Randall Road and Harnish Drive. (LOT)”
— NOAA / SPC storm report
/ Storm field report · Kane
Hail in Dundee · Jun 24, 2026
The estimated-size surface reached 1.25" aloft; NEXRAD logged no point detections over Dundee that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.25" ≈ half-dollar · radar-estimated size aloft
Homes in the hail footprint 14,674
Ground reports 5 5 hail
Radar surfaces 1 Estimated size only
Convective day · Jun 24, 2026 · noon–noon UTC
Severity
The most severe storm Dundee has seen in the last 12 months
Composite score · 5.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.2 /10
- Peak hail signal
- 31 /100
- Homes exposed
- 83 /100
- Ground truth
- 83 /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 Dundee saw the hail — from two instruments
Jun 24, 2026 · Dundee, IL
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Radar-estimated hail size Surface resolved
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Max size
1.25"
Only the radar-estimated size surface resolved for Jun 24, 2026 — this storm produced no NEXRAD point detections over Dundee, so there is one map to show, not two.
The storm in context
Where Jun 24, 2026 sits in Dundee's hail record.
This was Dundee's 2nd recorded hail day, arriving 71 days after the Apr 14, 2026 storm. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Dundee at 1.25" — radar-estimated size aloft.
The Jun 24, 2026 convective day was bigger than Dundee: the same system put hail over 383 other tracked cities, 53 of them in Illinois. Nearest: Lake In The Hills (7 miles north, up to 1.25"); Bartlett (9 miles southeast, up to 0.5"); Schaumburg (12 miles southeast, up to 0.5").
These maps are stills. In the app this date is one of 4 Dundee 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
5 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
5 reports Hail size 1"
Algonquin McHenry County
“Multiple public reports of quarter size hail near Algonquin. Relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail size 1"
1 S Algonquin Kane County
“Report from mPING: Quarter (1.00 in.). (LOT)”
— NOAA / SPC storm report
Hail size 1"
2 SE Algonquin Kane County
“Public report of quarter size hail southeast of Algonquin. Relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail size 1"
2 SW Algonquin Kane 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.
Reports came from Lake In The Hills and Algonquin — beyond Dundee itself.
Damage-capable hail signal
What 1.25" hail means for Dundee roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
14,674 homes × $12,000 avg. claim
Potential roof exposure
$176M
Potential roof exposure — 14,674 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 73 jobs
- Illustrative work
- ~$1.1M
Close just 0.5% of the 14,674 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
June 2028
Claims from this storm can typically be filed until around June 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 $3,082 on top of the $150 plan.
Dundee hail history
Other storms in Dundee.
4 recorded storm days in Dundee, IL
Estimated-size surface Storm date Dundee / IL
Jul 27, 2026
1.25" Estimated 1.25"
2 ground reports Open report →
Estimated-size surface Storm date Dundee / IL
Jul 3, 2026
1.75" Signatures 1.75"
No ground reports filed Open report →
Estimated-size surface Storm date Dundee / IL
Apr 14, 2026
0.75" Estimated 0.75"
No ground reports filed 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.