Hail in Altoona, KS

The most recent recorded hail in Altoona fell 40 days ago — on Sep 12, 2026. 12 hail days have been recorded since Mar 3, 2026. This page reflects the most recent build of Overview's hail data, not live radar.

The highest radar-indicated hail size recorded in Altoona was 2.5" — about the size of a baseball — on Apr 26, 2026. That figure is a NEXRAD radar signature, not a ground measurement.

Overview recorded 12 hail days in Altoona over the last 12 months. Across all records, 12 hail days have been logged since Mar 3, 2026.

Altoona has had 12 recorded hail storms in the last 24 months. Homeowner insurance policies commonly allow one to two years to file a hail-damage claim, but deadlines vary by policy and state — check your policy or ask a roofer for an inspection. This is general information, not legal or insurance advice.

Roughly 116 homes sit inside Altoona's recorded hail footprints, based on building-footprint data intersected with the recorded hail.

Use Overview on iPhone to explore Altoona hail, choose a recommended area or draw your own, and work the addresses inside it. The iPhone onboarding trial lasts 7 days, includes 200 addresses, and requires no card to start. Optional homeowner contacts cost $0.21 each where available. Web checkout has separate trial terms; see the pricing page.

Each Altoona storm date is drawn from two radar surfaces — NEXRAD hail signatures and a radar-estimated hail size — with the NWS ground reports filed that day shown beside them. Radar is not ground truth: it can run larger or smaller than what fell, and it cannot see a single roof. Use the map to rank where to inspect first, then let the inspection decide.

We use them: every NWS report filed over Altoona is pinned to the map. What Overview adds is every storm date rendered as a swath over the streets, the estimated hail size in inches, a replay of any past day, the count of homes under the footprint, and the homeowner list for whatever shape you draw.