Hamilton County weather alerts
There are no active weather alerts for Hamilton County, OH right now.
Since 2016 the National Weather Service has issued about 1,078 alerts that included Hamilton County, roughly 108 a year. The most common is the flood advisory (189 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 15 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Hamilton County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Warren County, Campbell County, Butler County, Clermont County.
Hamilton County alert history
Alert events that included Hamilton County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 189 | 26 | September 20, 2026 |
| Severe Thunderstorm Warning | 186 | 14 | September 4, 2026 |
| Flood Warning | 115 | 20 | September 20, 2026 |
| Winter Weather Advisory | 69 | 5 | March 2, 2026 |
| Flood Watch | 61 | 10 | September 20, 2026 |
| Wind Advisory | 58 | 3 | March 15, 2026 |
| Severe Thunderstorm Watch | 55 | 12 | August 11, 2026 |
| Flash Flood Warning | 51 | 9 | August 11, 2026 |
| Dense Fog Advisory | 46 | 6 | October 12, 2026 |
| Freeze Warning | 44 | 3 | November 8, 2026 |
| Frost Advisory | 36 | 8 | November 9, 2026 |
| Heat Advisory | 35 | 3 | September 1, 2026 |
| Tornado Watch | 31 | 3 | June 18, 2026 |
| Freeze Watch | 19 | 1 | October 18, 2026 |
| Winter Storm Warning | 14 | 1 | January 24, 2026 |
| Cold Weather Advisory | 13 | 8 | February 7, 2026 |
| Winter Storm Watch | 10 | 1 | January 24, 2026 |
| Extreme Heat Warning | 9 | 1 | June 30, 2026 |
| High Wind Warning | 8 | 1 | March 15, 2026 |
| Tornado Warning | 8 | 5 | August 11, 2026 |
| Extreme Heat Watch | 7 | 0 | June 22, 2025 |
| Red Flag Warning | 5 | 0 | April 20, 2023 |
| Extreme Cold Watch | 3 | 1 | January 26, 2026 |
| Snow Squall Warning | 2 | 0 | December 12, 2024 |
| Extreme Cold Warning | 2 | 2 | January 31, 2026 |
| Ice Storm Warning | 1 | 0 | November 15, 2018 |
| High Wind Watch | 1 | 0 | April 13, 2020 |
Tornado history in Hamilton County
15 tornadoes have been recorded in Hamilton County since 1950, killing 10 people and injuring 383. That ranks 51 of 88 counties in Ohio. The most recent was on April 8, 2020 (rated EF0).
Strongest tornadoes in Hamilton County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 9, 1999 | F4 | Hamilton County | 10 mi | 270 yd | 4 | 65 |
| April 3, 1974 | F4 | Hamilton County | 19.8 mi | 350 yd | 2 | 39 |
| August 9, 1969 | F3 | Hamilton County | 22.2 mi | 400 yd | 4 | 247 |
| October 1, 1977 | F3 | Hamilton County | 0.7 mi | 150 yd | 0 | 17 |
| February 25, 1956 | F2 | Hamilton County | 0.5 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 8, 2020 | EF0 | Hamilton County | 3.3 mi | 350 yd | 0 | 0 |
| April 8, 2020 | EF0 | Hamilton County | 6.2 mi | 300 yd | 0 | 0 |
| March 1, 2017 | EF0 | Hamilton County | 1.1 mi | 350 yd | 0 | 0 |
| July 13, 2016 | EF0 | Hamilton County | 0.7 mi | 150 yd | 0 | 0 |
| June 4, 2008 | EF0 | Hamilton County | 1.9 mi | 50 yd | 0 | 0 |
About Hamilton County
- Population: 837,359 (2024 estimate)
- State: Ohio
- NOAA Weather Radio SAME code: 039061 (how to use it)
- Cities: Cincinnati