McNairy County weather alerts
There are no active weather alerts for McNairy County, TN right now.
Since 2016 the National Weather Service has issued about 916 alerts that included McNairy County, roughly 92 a year. The most common is the severe thunderstorm warning (168 from 2016 to 2025). The last tornado warning was issued on March 16, 2026. 19 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 McNairy County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Chester County, Hardeman County, Hardin County, Alcorn County.
McNairy County alert history
Alert events that included McNairy County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 168 | 23 | August 22, 2026 |
| Dense Fog Advisory | 142 | 14 | November 5, 2026 |
| Heat Advisory | 74 | 12 | September 14, 2026 |
| Tornado Watch | 70 | 5 | April 29, 2026 |
| Wind Advisory | 58 | 2 | October 10, 2026 |
| Severe Thunderstorm Watch | 56 | 7 | August 22, 2026 |
| Flood Advisory | 52 | 6 | August 9, 2026 |
| Flood Watch | 46 | 1 | October 10, 2026 |
| Freeze Warning | 37 | 2 | March 17, 2026 |
| Tornado Warning | 37 | 1 | March 16, 2026 |
| Flash Flood Warning | 31 | 0 | April 6, 2025 |
| Frost Advisory | 31 | 0 | April 9, 2025 |
| Winter Weather Advisory | 24 | 0 | February 18, 2025 |
| Freeze Watch | 23 | 2 | March 17, 2026 |
| Cold Weather Advisory | 14 | 1 | January 31, 2026 |
| Extreme Heat Warning | 13 | 3 | August 14, 2026 |
| Flood Warning | 11 | 0 | April 6, 2025 |
| Winter Storm Watch | 7 | 1 | January 23, 2026 |
| Winter Storm Warning | 7 | 0 | January 10, 2025 |
| Extreme Heat Watch | 4 | 1 | July 1, 2026 |
| High Wind Warning | 3 | 0 | March 3, 2023 |
| Red Flag Warning | 2 | 0 | April 10, 2022 |
| Extreme Cold Warning | 2 | 1 | January 26, 2026 |
| Fire Weather Watch | 1 | 0 | October 8, 2016 |
| Extreme Cold Watch | 1 | 1 | January 26, 2026 |
| Ice Storm Warning | 1 | 1 | January 24, 2026 |
| High Wind Watch | 1 | 0 | March 25, 2024 |
Tornado history in McNairy County
19 tornadoes have been recorded in McNairy County since 1950, killing 18 people and injuring 147. That ranks 38 of 95 counties in Tennessee. The most recent was on April 2, 2025 (rated EF3).
Strongest tornadoes in McNairy County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 31, 2023 | EF3 | Hardeman County | 86 mi | 1,400 yd | 9 | 23 |
| April 2, 2025 | EF3 | McNairy County | 29.2 mi | 650 yd | 5 | 14 |
| March 22, 1991 | F3 | McNairy County | 22 mi | 200 yd | 4 | 45 |
| April 4, 1957 | F3 | McNairy County | 7.3 mi | 50 yd | 0 | 11 |
| May 2, 2010 | EF2 | McNairy County | 25.7 mi | 880 yd | 0 | 12 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 2, 2025 | EF3 | McNairy County | 29.2 mi | 650 yd | 5 | 14 |
| March 31, 2023 | EF3 | Hardeman County | 86 mi | 1,400 yd | 9 | 23 |
| March 31, 2023 | EF2 | McNairy County | 18.9 mi | 800 yd | 0 | 0 |
| February 16, 2023 | EF1 | McNairy County | 3.1 mi | 105 yd | 0 | 0 |
| May 2, 2010 | EF2 | McNairy County | 25.7 mi | 880 yd | 0 | 12 |
About McNairy County
- Population: 26,103 (2024 estimate)
- State: Tennessee
- NOAA Weather Radio SAME code: 047109 (how to use it)