Brown County weather alerts
There are no active weather alerts for Brown County, OH right now.
Since 2016 the National Weather Service has issued about 999 alerts that included Brown County, roughly 100 a year. The most common is the severe thunderstorm warning (220 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 24 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 Brown County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Highland County, Bracken County, Adams County, Clermont County.
Brown County alert history
Alert events that included Brown County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 220 | 16 | September 4, 2026 |
| Flood Advisory | 159 | 16 | October 11, 2026 |
| Winter Weather Advisory | 77 | 8 | March 17, 2026 |
| Flood Watch | 67 | 13 | September 20, 2026 |
| Wind Advisory | 55 | 3 | March 15, 2026 |
| Severe Thunderstorm Watch | 54 | 10 | August 11, 2026 |
| Dense Fog Advisory | 46 | 8 | October 12, 2026 |
| Freeze Warning | 46 | 4 | November 8, 2026 |
| Flash Flood Warning | 40 | 4 | August 11, 2026 |
| Frost Advisory | 37 | 8 | November 9, 2026 |
| Heat Advisory | 33 | 3 | September 1, 2026 |
| Tornado Watch | 27 | 4 | June 18, 2026 |
| Flood Warning | 26 | 2 | June 18, 2026 |
| Tornado Warning | 22 | 7 | August 11, 2026 |
| Freeze Watch | 20 | 1 | October 18, 2026 |
| Winter Storm Watch | 13 | 1 | January 24, 2026 |
| Cold Weather Advisory | 11 | 8 | February 7, 2026 |
| Winter Storm Warning | 11 | 1 | January 24, 2026 |
| High Wind Warning | 8 | 0 | September 27, 2024 |
| Extreme Heat Watch | 7 | 0 | June 22, 2025 |
| Snow Squall Warning | 7 | 0 | January 19, 2025 |
| Red Flag Warning | 4 | 0 | April 20, 2023 |
| Extreme Heat Warning | 4 | 1 | June 30, 2026 |
| Extreme Cold Watch | 2 | 1 | January 26, 2026 |
| High Wind Watch | 1 | 0 | April 13, 2020 |
| Ice Storm Warning | 1 | 0 | February 3, 2022 |
| Extreme Cold Warning | 1 | 2 | January 31, 2026 |
Tornado history in Brown County
24 tornadoes have been recorded in Brown County since 1950, killing 1 people and injuring 34. That ranks 21 of 88 counties in Ohio. The most recent was on April 2, 2025 (rated EF0).
Strongest tornadoes in Brown County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 23, 1968 | F4 | Clermont County | 24.1 mi | 300 yd | 1 | 33 |
| March 10, 1986 | F2 | Brown County | 6 mi | 143 yd | 0 | 0 |
| May 8, 1961 | F1 | Brown County | 20 mi | 100 yd | 0 | 0 |
| February 24, 2018 | EF1 | Brown County | 4.9 mi | 300 yd | 0 | 0 |
| May 21, 2010 | EF1 | Brown County | 4.3 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 2, 2025 | EF0 | Brown County | 7.9 mi | 250 yd | 0 | 0 |
| July 6, 2022 | EF1 | Brown County | 3.3 mi | 250 yd | 0 | 0 |
| June 8, 2022 | EF0 | Brown County | 2.1 mi | 80 yd | 0 | 0 |
| April 8, 2020 | EF0 | Clinton County | 0.9 mi | 50 yd | 0 | 0 |
| April 8, 2020 | EF0 | Brown County | 2.4 mi | 50 yd | 0 | 0 |
About Brown County
- Population: 44,292 (2024 estimate)
- State: Ohio
- NOAA Weather Radio SAME code: 039015 (how to use it)