Hail in Louisville · May 15, 2026
NEXRAD logged 5 hail signatures up to 0.75"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
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Convective day · May 15, 2026 · noon–noon UTC
Severity
The 8th 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
- 44 /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
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.
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.
Only the NEXRAD radar-signature surface resolved for May 15, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where May 15, 2026 sits in Louisville's hail record.
This was Louisville's 4th recorded hail day, arriving 11 days after the May 4, 2026 storm. By severity it ranks 8th of the 9 storms we have logged here. Radar put the day's largest stone over Louisville at 0.75" — the largest NEXRAD radar signature.
The May 15, 2026 convective day was bigger than Louisville: the same system put hail over 444 other tracked cities, 20 of them in Illinois. Nearest: Mason (14 miles north, up to 0.75"); Rinard (14 miles south, up to 0.75"); Petersburg (72 miles east, up to 0").
These maps are stills. In the app this date is one of 9 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
$1.9M
Potential roof exposure — 156 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 1 job
- Illustrative work
- ~$15K
Close just 0.5% of the 156 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
May 2028
Claims from this storm can typically be filed until around May 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 $33 on top of the $150 plan.
Louisville hail history
Other storms in Louisville.
Estimated-size surface Jul 26, 2026
0.75"
Estimated-size surface Jul 3, 2026
1.5"
Estimated-size surface Jun 25, 2026
0.75"
Estimated-size surface Jun 11, 2026
0.5"
Estimated-size surface May 16, 2026
2"
Estimated-size surface May 4, 2026
1.75"
Estimated-size surface Apr 27, 2026
1.25"
Estimated-size surface Mar 4, 2026
1.75"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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Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.