Lyon County weather alerts
There are no active weather alerts for Lyon County, KY right now.
Since 2016 the National Weather Service has issued about 783 alerts that included Lyon County, roughly 78 a year. The most common is the severe thunderstorm warning (111 from 2016 to 2025). The last tornado warning was issued on June 27, 2026. 14 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 Lyon County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Livingston County, Trigg County, Crittenden County, Caldwell County.
Lyon County alert history
Alert events that included Lyon County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 111 | 16 | September 9, 2026 |
| Dense Fog Advisory | 66 | 6 | October 15, 2026 |
| Wind Advisory | 66 | 4 | March 15, 2026 |
| Severe Thunderstorm Watch | 61 | 8 | August 20, 2026 |
| Flood Advisory | 60 | 3 | August 1, 2026 |
| Flood Watch | 60 | 4 | August 20, 2026 |
| Tornado Watch | 58 | 4 | June 26, 2026 |
| Winter Weather Advisory | 39 | 0 | December 2, 2025 |
| Heat Advisory | 36 | 8 | September 14, 2026 |
| Tornado Warning | 33 | 4 | June 27, 2026 |
| Frost Advisory | 32 | 2 | November 7, 2026 |
| Flash Flood Warning | 30 | 2 | June 9, 2026 |
| Flood Warning | 28 | 0 | April 7, 2025 |
| Freeze Warning | 25 | 2 | November 8, 2026 |
| Winter Storm Warning | 16 | 1 | January 24, 2026 |
| Freeze Watch | 12 | 1 | November 8, 2026 |
| Winter Storm Watch | 11 | 1 | January 24, 2026 |
| Cold Weather Advisory | 10 | 2 | January 31, 2026 |
| Extreme Heat Warning | 9 | 5 | September 1, 2026 |
| Red Flag Warning | 6 | 0 | April 20, 2023 |
| Extreme Heat Watch | 5 | 2 | September 1, 2026 |
| Fire Weather Watch | 3 | 0 | April 20, 2023 |
| Ice Storm Warning | 2 | 0 | February 3, 2022 |
| High Wind Warning | 2 | 1 | March 15, 2026 |
| Extreme Cold Watch | 1 | 0 | December 23, 2022 |
| Extreme Cold Warning | 1 | 1 | January 26, 2026 |
Tornado history in Lyon County
14 tornadoes have been recorded in Lyon County since 1950, killing 5 people and injuring 89. That ranks 33 of 120 counties in Kentucky. The most recent was on May 16, 2025 (rated EF1).
Strongest tornadoes in Lyon County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| November 17, 2013 | EF3 | Livingston County | 42.5 mi | 500 yd | 3 | 34 |
| November 15, 2005 | F3 | Graves County | 44 mi | 500 yd | 1 | 20 |
| May 26, 2024 | EF3 | Lyon County | 34.1 mi | 700 yd | 1 | 21 |
| April 24, 1970 | F3 | Marshall County | 25.4 mi | 10 yd | 0 | 13 |
| July 1, 2023 | EF1 | Graves County | 27.4 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 16, 2025 | EF1 | Lyon County | 0.8 mi | 210 yd | 0 | 0 |
| May 26, 2024 | EF3 | Lyon County | 34.1 mi | 700 yd | 1 | 21 |
| July 1, 2023 | EF1 | Graves County | 27.4 mi | 100 yd | 0 | 0 |
| April 13, 2022 | EF1 | Trigg County | 4.8 mi | 150 yd | 0 | 0 |
| June 21, 2019 | EF1 | Lyon County | 2.1 mi | 150 yd | 0 | 0 |
About Lyon County
- Population: 9,078 (2024 estimate)
- State: Kentucky
- NOAA Weather Radio SAME code: 021143 (how to use it)