AtmostormCounty briefing

Hamilton County, OH

Severe-weather activation briefing

Generated 2026-09-20T08:11:25.753772+00:00

3 active warnings

Radar over Hamilton County, OH with the warned area outlined

In the warned path — county-wide (estimate)

~150,000 residents, plus 16 nursing homes, 2 mobile-home parks, 6 dialysis centers, 3 hospitals and 47 schools

Active warnings (3)

1. Flash Flood Warninguntil 2026-09-20T10:45:00+00:00

Flash Flood Warning issued September 20 at 3:39AM EDT until September 20 at 6:45AM EDT by NWS Wilmington OH

In path: ~0 residents.

Storm details · Full facility list (per-warning briefing)

2. Flash Flood Warninguntil 2026-09-20T09:00:00+00:00

Flash Flood Warning issued September 20 at 1:54AM EDT until September 20 at 5:00AM EDT by NWS Wilmington OH

In path: ~0 residents.

Storm details · Full facility list (per-warning briefing)

3. Flood Advisoryuntil 2026-09-20T10:00:00+00:00

Flood Advisory issued September 20 at 3:06AM EDT until September 20 at 6:00AM EDT by NWS Wilmington OH

In path: ~150,000 residents, 16 nursing homes, 2 mobile-home parks, 6 dialysis centers, 3 hospitals and 47 schools.

Storm details · Full facility list (per-warning briefing)

County exposure (baseline)

Hamilton County, OH has an estimated 839,608 residents, including 68 nursing homes, 6 mobile-home parks, 28 dialysis centers, 12 hospitals and 211 schools. This is the denominator behind “in the warned path”.