Hail in Louisville · Aug 11, 2026
NEXRAD logged 0 hail signatures up to 0"; 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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Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 5th most severe storm Louisville 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
- 83 /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 Louisville 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.
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.
The storm in context
Where Aug 11, 2026 sits in Louisville's hail record.
This was Louisville's 12th recorded hail day, arriving 21 days after the Jul 21, 2026 storm. By severity it ranks 5th of the 14 storms we have logged here. Radar put the day's largest stone over Louisville at 0.75" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Louisville: the same system put hail over 1,041 other tracked cities, 83 of them in Kentucky. Nearest: Lebanon Junction (16 miles southwest, up to 0.5"); Shepherdsville (18 miles southwest, up to 0.75"); Bardstown (21 miles south, up to 0.5").
These maps are stills. In the app this date is one of 14 Louisville 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.
The National Weather Service logged no spotter reports for this storm over Louisville. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Near the severe threshold
What 0.75" hail means for Louisville 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
$161M
Potential roof exposure — 13,397 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 67 jobs
- Illustrative work
- ~$1M
Close just 0.5% of the 13,397 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
August 2028
Claims from this storm can typically be filed until around August 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 $2,813 on top of the $150 plan.
Louisville hail history
Other storms in Louisville.
Estimated-size surface Sep 5, 2026
0.5"
Estimated-size surface Aug 16, 2026
0.5"
Estimated-size surface Jul 21, 2026
1"
Estimated-size surface Jul 17, 2026
0.5"
Estimated-size surface Jul 8, 2026
1.25"
Estimated-size surface Jul 4, 2026
1"
NEXRAD surface Jun 26, 2026
Estimated-size surface Jun 11, 2026
0.5"
Estimated-size surface May 19, 2026
0.5"
Estimated-size surface May 16, 2026
1.75"
NEXRAD surface May 3, 2026
Estimated-size surface Apr 1, 2026
1.5"
Estimated-size surface Mar 22, 2026
Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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