Hail storms on Sep 1, 2026
13 days ago363 cities across 15 states recorded hail on Sep 1, 2026 — a multi-state outbreak. The peak radar-indicated size reached 4" over Niobrara — about the size of a softball or larger. That is a severe hail signal, not property-level damage confirmation.
Sep 1, 2026 · Niobrara, NE: 4" peak radar signal · Radar-estimated size map
Mapped cities, by state
Every tracked city with a hail signal on Sep 1, 2026
Every tracked city that recorded hail on this convective day, biggest signal first. Each row opens that city's full storm record.
How to read this day
A storm day on Overview 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. Everything below happened inside the Sep 1, 2026 convective day. Across those footprints sit roughly 522,659 homes, and 95 ground reports were filed with the National Weather Service.
The cities are listed with the biggest storm first, measured by Overview's severity score. Each row links through to that city's own storm page, where you'll find the radar surfaces, every ground report filed, and the hail footprint drawn on the map.
The counts here are the size of the set of cities Overview tracks — never "every US city" — so read a quiet day as "quiet among the places we watch," not as proof nothing happened elsewhere.
Nebraska
43 cities · up to 4" · 34,049 mapped homes
South Dakota
43 cities · up to 4" · 41,602 mapped homes
New York
13 cities · up to 1.75" · 21,348 mapped homes
Minnesota
57 cities · up to 1.5" · 87,693 mapped homes
Iowa
48 cities · up to 1.5" · 55,124 mapped homes
Wisconsin
40 cities · up to 1.5" · 36,881 mapped homes
Pennsylvania
81 cities · up to 1.5" · 125,270 mapped homes
Idaho
7 cities · up to 1.25" · 15,141 mapped homes
Ohio
2 cities · up to 1.25" · 10,025 mapped homesNew Jersey
15 cities · up to 0.75" · 88,070 mapped homes
Michigan
10 cities · up to 0.75" · 5,920 mapped homes
Maryland
1 city · up to 0.5" · 1,452 mapped homesKansas
1 city · up to 0.5" · 43 mapped homesColorado
1 city · up to 0.5" · 34 mapped homesWyoming
1 city · up to 0.5" · 7 mapped homesOverview Pro · iPhone + web
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