Knox County weather alerts
There are no active weather alerts for Knox County, MO right now.
Since 2016 the National Weather Service has issued about 615 alerts that included Knox County, roughly 62 a year. The most common is the severe thunderstorm warning (89 from 2016 to 2025). The last tornado warning was issued on June 10, 2026. 10 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 Knox County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Scotland County, Shelby County, Adair County, Clark County.
Knox County alert history
Alert events that included Knox County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 89 | 12 | June 11, 2026 |
| Dense Fog Advisory | 75 | 3 | September 11, 2026 |
| Winter Weather Advisory | 66 | 3 | March 16, 2026 |
| Severe Thunderstorm Watch | 56 | 2 | July 10, 2026 |
| Wind Advisory | 52 | 4 | June 17, 2026 |
| Flood Watch | 33 | 8 | August 15, 2026 |
| Freeze Warning | 31 | 2 | November 7, 2026 |
| Cold Weather Advisory | 29 | 3 | January 26, 2026 |
| Heat Advisory | 26 | 7 | August 31, 2026 |
| Tornado Watch | 24 | 9 | June 17, 2026 |
| Red Flag Warning | 15 | 2 | February 27, 2026 |
| Winter Storm Watch | 15 | 0 | November 29, 2025 |
| Flood Advisory | 14 | 2 | September 16, 2026 |
| Winter Storm Warning | 14 | 0 | November 29, 2025 |
| Frost Advisory | 13 | 1 | October 17, 2026 |
| Freeze Watch | 11 | 0 | November 2, 2025 |
| Flash Flood Warning | 9 | 3 | June 11, 2026 |
| Flood Warning | 7 | 0 | June 6, 2019 |
| Tornado Warning | 7 | 3 | June 10, 2026 |
| Extreme Cold Warning | 7 | 0 | January 21, 2025 |
| Extreme Heat Warning | 6 | 3 | September 3, 2026 |
| Extreme Heat Watch | 4 | 1 | July 26, 2026 |
| Fire Weather Watch | 3 | 1 | February 27, 2026 |
| High Wind Warning | 3 | 0 | March 5, 2025 |
| Ice Storm Warning | 2 | 0 | February 7, 2019 |
| Extreme Cold Watch | 2 | 0 | December 22, 2022 |
| Blizzard Warning | 1 | 0 | November 25, 2018 |
| High Wind Watch | 1 | 0 | March 14, 2019 |
Tornado history in Knox County
10 tornadoes have been recorded in Knox County since 1950, injuring 4 people. That ranks 108 of 115 counties in Missouri. The most recent was on August 4, 2023 (rated EF2).
Strongest tornadoes in Knox County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 21, 1967 | F4 | Linn County | 59 mi | 500 yd | 0 | 2 |
| May 10, 2003 | F2 | Knox County | 22.1 mi | 200 yd | 0 | 0 |
| April 8, 1999 | F2 | Macon County | 17 mi | 270 yd | 0 | 0 |
| May 13, 1970 | F2 | Knox County | 7.6 mi | 50 yd | 0 | 0 |
| August 4, 2023 | EF2 | Knox County | 1.6 mi | 450 yd | 0 | 2 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 4, 2023 | EF2 | Knox County | 1.6 mi | 450 yd | 0 | 2 |
| April 27, 2016 | EF1 | Knox County | 0.2 mi | 40 yd | 0 | 0 |
| May 13, 2009 | EF0 | Knox County | 3.1 mi | 100 yd | 0 | 0 |
| May 13, 2009 | EF0 | Knox County | 9.2 mi | 200 yd | 0 | 0 |
| May 10, 2003 | F2 | Knox County | 22.1 mi | 200 yd | 0 | 0 |
About Knox County
- Population: 3,740 (2024 estimate)
- State: Missouri
- NOAA Weather Radio SAME code: 029103 (how to use it)