Jefferson County weather alerts
There are no active weather alerts for Jefferson County, KS right now.
Since 2016 the National Weather Service has issued about 1,098 alerts that included Jefferson County, roughly 110 a year. The most common is the severe thunderstorm warning (204 from 2016 to 2025). The last tornado warning was issued on June 9, 2026. 41 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 Jefferson County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Jackson County, Shawnee County, Atchison County, Douglas County.
Jefferson County alert history
Alert events that included Jefferson County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 204 | 38 | October 13, 2026 |
| Flood Warning | 101 | 2 | June 5, 2026 |
| Severe Thunderstorm Watch | 98 | 11 | October 13, 2026 |
| Winter Weather Advisory | 85 | 2 | March 15, 2026 |
| Wind Advisory | 72 | 3 | June 17, 2026 |
| Dense Fog Advisory | 68 | 4 | August 26, 2026 |
| Heat Advisory | 67 | 10 | September 2, 2026 |
| Flood Advisory | 57 | 10 | October 30, 2026 |
| Red Flag Warning | 50 | 5 | March 28, 2026 |
| Flood Watch | 40 | 9 | October 13, 2026 |
| Flash Flood Warning | 36 | 5 | October 30, 2026 |
| Fire Weather Watch | 29 | 3 | March 28, 2026 |
| Freeze Warning | 28 | 0 | April 8, 2025 |
| Tornado Watch | 28 | 6 | June 13, 2026 |
| Frost Advisory | 22 | 2 | October 17, 2026 |
| Cold Weather Advisory | 19 | 1 | January 23, 2026 |
| Winter Storm Watch | 14 | 1 | January 24, 2026 |
| Tornado Warning | 13 | 2 | June 9, 2026 |
| Freeze Watch | 12 | 0 | April 8, 2025 |
| Winter Storm Warning | 12 | 1 | January 24, 2026 |
| Extreme Heat Warning | 10 | 5 | September 3, 2026 |
| High Wind Warning | 8 | 1 | March 15, 2026 |
| Extreme Heat Watch | 6 | 2 | July 28, 2026 |
| Extreme Cold Watch | 6 | 0 | February 18, 2025 |
| Extreme Cold Warning | 5 | 0 | February 18, 2025 |
| High Wind Watch | 4 | 1 | March 15, 2026 |
| Blizzard Warning | 3 | 0 | March 5, 2025 |
| Ice Storm Warning | 1 | 0 | January 13, 2017 |
Tornado history in Jefferson County
41 tornadoes have been recorded in Jefferson County since 1950, killing 1 people and injuring 109. That ranks 64 of 105 counties in Kansas. The most recent was on April 30, 2024 (rated EF1).
Strongest tornadoes in Jefferson County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 19, 1960 | F4 | Shawnee County | 27.5 mi | 880 yd | 1 | 92 |
| June 11, 1967 | F3 | Shawnee County | 43.9 mi | 10 yd | 0 | 0 |
| April 26, 1984 | F3 | Jefferson County | 32 mi | 1,200 yd | 0 | 9 |
| May 19, 1960 | F3 | Jefferson County | 13.3 mi | 10 yd | 0 | 1 |
| May 19, 1960 | F3 | Jefferson County | 11.5 mi | 10 yd | 0 | 1 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 30, 2024 | EF1 | Jefferson County | 2.2 mi | 75 yd | 0 | 0 |
| March 29, 2022 | EF1 | Jefferson County | 9.9 mi | 10 yd | 0 | 0 |
| June 30, 2018 | EF0 | Jefferson County | 0.2 mi | 40 yd | 0 | 0 |
| May 21, 2011 | EF0 | Jefferson County | 1.9 mi | 50 yd | 0 | 0 |
| June 8, 2005 | F0 | Jefferson County | 0.5 mi | 40 yd | 0 | 0 |
About Jefferson County
- Population: 18,332 (2024 estimate)
- State: Kansas
- NOAA Weather Radio SAME code: 020087 (how to use it)