Ottawa County weather alerts
There are no active weather alerts for Ottawa County, OH right now.
Since 2016 the National Weather Service has issued about 533 alerts that included Ottawa County, roughly 53 a year. The most common is the severe thunderstorm warning (116 from 2016 to 2025). The last tornado warning was issued on June 18, 2025. 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 Ottawa County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Sandusky County, Lucas County, Wood County, Erie County.
Ottawa County alert history
Alert events that included Ottawa County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 116 | 26 | September 4, 2026 |
| Wind Advisory | 76 | 3 | March 15, 2026 |
| Winter Weather Advisory | 53 | 0 | December 26, 2025 |
| Severe Thunderstorm Watch | 47 | 13 | September 3, 2026 |
| Dense Fog Advisory | 43 | 6 | October 24, 2026 |
| Flood Advisory | 27 | 6 | August 2, 2026 |
| Frost Advisory | 24 | 3 | May 12, 2026 |
| Heat Advisory | 22 | 8 | September 3, 2026 |
| Cold Weather Advisory | 20 | 5 | February 7, 2026 |
| Flood Watch | 19 | 4 | August 11, 2026 |
| High Wind Warning | 13 | 1 | March 13, 2026 |
| Flash Flood Warning | 10 | 4 | July 6, 2026 |
| Tornado Watch | 9 | 1 | March 26, 2026 |
| Tornado Warning | 9 | 0 | June 18, 2025 |
| High Wind Watch | 7 | 1 | March 13, 2026 |
| Freeze Warning | 7 | 2 | October 18, 2026 |
| Extreme Heat Watch | 5 | 0 | June 22, 2025 |
| Winter Storm Warning | 5 | 1 | January 25, 2026 |
| Flood Warning | 4 | 5 | July 6, 2026 |
| Winter Storm Watch | 4 | 1 | January 25, 2026 |
| Extreme Cold Warning | 3 | 1 | January 27, 2026 |
| Red Flag Warning | 2 | 0 | November 19, 2020 |
| Extreme Cold Watch | 2 | 1 | January 27, 2026 |
| Freeze Watch | 2 | 2 | October 18, 2026 |
| Coastal Flood Warning | 1 | 0 | September 8, 2018 |
| Fire Weather Watch | 1 | 0 | May 1, 2018 |
| Extreme Heat Warning | 1 | 1 | June 30, 2026 |
| Ice Storm Warning | 1 | 0 | February 12, 2025 |
| Snow Squall Warning | 0 | 1 | January 19, 2026 |
Tornado history in Ottawa County
15 tornadoes have been recorded in Ottawa County since 1950, killing 7 people and injuring 45. That ranks 51 of 88 counties in Ohio. The most recent was on June 18, 2025 (rated EF0).
Strongest tornadoes in Ottawa County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 5, 2010 | EF4 | Wood County | 8.8 mi | 400 yd | 7 | 28 |
| July 12, 1992 | F2 | Ottawa County | 10 mi | 150 yd | 0 | 0 |
| November 10, 2002 | F2 | Ottawa County | 10 mi | 50 yd | 0 | 4 |
| June 24, 1998 | F2 | Ottawa County | 3.5 mi | 100 yd | 0 | 13 |
| June 15, 2023 | EF2 | Ottawa County | 3.4 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 18, 2025 | EF0 | Ottawa County | 2.9 mi | 10 yd | 0 | 0 |
| June 18, 2025 | EF0 | Ottawa County | 0.5 mi | 10 yd | 0 | 0 |
| August 24, 2023 | EF1 | Ottawa County | 4.5 mi | 100 yd | 0 | 0 |
| June 15, 2023 | EF2 | Ottawa County | 3.4 mi | 200 yd | 0 | 0 |
| November 17, 2013 | EF1 | Ottawa County | 0.8 mi | 75 yd | 0 | 0 |
About Ottawa County
- Population: 39,692 (2024 estimate)
- State: Ohio
- NOAA Weather Radio SAME code: 039123 (how to use it)