Sierra County weather alerts
There are no active weather alerts for Sierra County, NM right now.
Since 2016 the National Weather Service has issued about 1,027 alerts that included Sierra County, roughly 103 a year. The most common is the flood advisory (484 from 2016 to 2025). The last tornado warning was issued on October 23, 2026. 5 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 Sierra County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Luna County, Grant County, Otero County, Lincoln County.
Sierra County alert history
Alert events that included Sierra County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 484 | 45 | October 30, 2026 |
| Severe Thunderstorm Warning | 165 | 26 | October 25, 2026 |
| Flash Flood Warning | 126 | 30 | October 30, 2026 |
| Wind Advisory | 100 | 5 | October 16, 2026 |
| Flood Watch | 25 | 5 | September 28, 2026 |
| High Wind Warning | 24 | 0 | April 27, 2025 |
| High Wind Watch | 21 | 0 | April 27, 2025 |
| Dust Storm Warning | 18 | 0 | May 13, 2025 |
| Heat Advisory | 14 | 2 | July 30, 2026 |
| Winter Weather Advisory | 14 | 1 | January 24, 2026 |
| Dense Fog Advisory | 10 | 0 | December 21, 2023 |
| Freeze Warning | 10 | 0 | November 10, 2025 |
| Cold Weather Advisory | 5 | 1 | January 9, 2026 |
| Severe Thunderstorm Watch | 2 | 3 | October 24, 2026 |
| Winter Storm Watch | 2 | 0 | October 27, 2020 |
| Winter Storm Warning | 2 | 0 | February 14, 2021 |
| Flood Warning | 1 | 9 | October 23, 2026 |
| Freeze Watch | 1 | 0 | October 31, 2023 |
| Extreme Heat Watch | 1 | 0 | June 12, 2024 |
| Extreme Cold Watch | 1 | 0 | January 21, 2025 |
| Extreme Cold Warning | 1 | 0 | January 21, 2025 |
| Tornado Warning | 0 | 1 | October 23, 2026 |
Tornado history in Sierra County
5 tornadoes have been recorded in Sierra County since 1950. That ranks 25 of 33 counties in New Mexico. The most recent was on June 20, 1982 (rated F0).
Strongest tornadoes in Sierra County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 16, 1971 | F1 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| May 16, 1958 | F0 | Sierra County | 0.3 mi | 880 yd | 0 | 0 |
| June 11, 1960 | F0 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| July 24, 1970 | F0 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| June 20, 1982 | F0 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 20, 1982 | F0 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| September 16, 1971 | F1 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| July 24, 1970 | F0 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| June 11, 1960 | F0 | Sierra County | 0.1 mi | 10 yd | 0 | 0 |
| May 16, 1958 | F0 | Sierra County | 0.3 mi | 880 yd | 0 | 0 |
About Sierra County
- Population: 11,389 (2024 estimate)
- State: New Mexico
- NOAA Weather Radio SAME code: 035051 (how to use it)