Hail in Lisbon · Apr 17, 2026
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Lisbon that day. Open it on the live map to see the swath over the streets.
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Convective day · Apr 17, 2026 · noon–noon UTC
Severity
The 14th most severe storm Lisbon 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
- 25 /100
- Homes exposed
- 26 /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 Lisbon 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.
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.
Only the radar-estimated size surface resolved for Apr 17, 2026 — this storm produced no NEXRAD point detections over Lisbon, so there is one map to show, not two.
The storm in context
Where Apr 17, 2026 sits in Lisbon's hail record.
This was Lisbon's 10th recorded hail day, arriving 2 days after the Apr 15, 2026 storm. By severity it ranks 14th of the 30 storms we have logged here. Radar put the day's largest stone over Lisbon at 1" — radar-estimated size aloft.
The Apr 17, 2026 convective day was bigger than Lisbon: the same system put hail over 1,016 other tracked cities. Nearest: North Stonington (277 miles southeast, up to 1"); Wyoming (283 miles southeast, up to 0.5"); Sheboygan Falls (632 miles west, up to 0.75").
These maps are stills. In the app this date is one of 30 Lisbon 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.
For this storm over Lisbon, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
Damage-capable hail signal
What 1" hail means for Lisbon 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.
Potential roof exposure
$228K
Potential roof exposure — 19 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
April 2028
Claims from this storm can typically be filed until around April 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 $4 on top of the $150 plan.
Lisbon hail history
Other storms in Lisbon.
Estimated-size surface Sep 12, 2026
1"
Estimated-size surface Sep 2, 2026
1"
Estimated-size surface Aug 31, 2026
1"
Estimated-size surface Aug 24, 2026
0.5"
Estimated-size surface Aug 20, 2026
1"
Estimated-size surface Aug 12, 2026
1"
Estimated-size surface Aug 7, 2026
2.25"
Estimated-size surface Jul 28, 2026
1.5"
Estimated-size surface Jul 27, 2026
1"
Estimated-size surface Jul 25, 2026
1"
Estimated-size surface Jul 18, 2026
0.5"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jul 3, 2026
0.5"
Estimated-size surface Jun 25, 2026
2.5"
Estimated-size surface Jun 23, 2026
1"
Estimated-size surface Jun 6, 2026
0.5"
Estimated-size surface May 10, 2026
0.75"
Estimated-size surface May 9, 2026
1"
Estimated-size surface May 7, 2026
0.75"
Estimated-size surface May 5, 2026
2.25"
Estimated-size surface Apr 15, 2026
2"
Estimated-size surface Mar 22, 2026
0.75"
Estimated-size surface Mar 16, 2026
3"
Estimated-size surface Mar 3, 2026
0.5"
Estimated-size surface Feb 23, 2026
0.75"
Estimated-size surface Feb 18, 2026
0.75"
Estimated-size surface Jan 22, 2026
0.5"
Estimated-size surface Jan 20, 2026
0.5"
Estimated-size surface Jan 5, 2026
0.5"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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