Niobrara County weather alerts
There are no active weather alerts for Niobrara County, WY right now.
Since 2016 the National Weather Service has issued about 1,045 alerts that included Niobrara County, roughly 105 a year. The most common is the severe thunderstorm warning (323 from 2016 to 2025). The last tornado warning was issued on June 22, 2026. 36 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 Niobrara County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Converse County, Fall River County, Custer County, Platte County.
Niobrara County alert history
Alert events that included Niobrara County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 323 | 43 | September 7, 2026 |
| Red Flag Warning | 140 | 30 | October 9, 2026 |
| Fire Weather Watch | 109 | 14 | October 9, 2026 |
| Winter Weather Advisory | 81 | 4 | November 2, 2026 |
| Severe Thunderstorm Watch | 77 | 11 | August 16, 2026 |
| Winter Storm Warning | 46 | 0 | April 17, 2025 |
| Winter Storm Watch | 44 | 0 | April 17, 2025 |
| High Wind Warning | 37 | 4 | March 12, 2026 |
| High Wind Watch | 32 | 4 | March 12, 2026 |
| Cold Weather Advisory | 32 | 2 | January 25, 2026 |
| Tornado Warning | 19 | 2 | June 22, 2026 |
| Flood Watch | 15 | 2 | August 15, 2026 |
| Flood Advisory | 13 | 1 | September 20, 2026 |
| Extreme Cold Warning | 12 | 0 | January 20, 2025 |
| Tornado Watch | 11 | 1 | June 24, 2026 |
| Blizzard Warning | 9 | 0 | April 4, 2023 |
| Dense Fog Advisory | 9 | 1 | October 31, 2026 |
| Frost Advisory | 8 | 1 | May 20, 2026 |
| Freeze Warning | 7 | 3 | October 16, 2026 |
| Freeze Watch | 5 | 2 | October 16, 2026 |
| Flash Flood Warning | 5 | 0 | July 9, 2023 |
| Extreme Cold Watch | 5 | 0 | January 13, 2024 |
| Heat Advisory | 5 | 4 | August 2, 2026 |
| Flood Warning | 1 | 0 | May 19, 2018 |
Tornado history in Niobrara County
36 tornadoes have been recorded in Niobrara County since 1950, injuring 5 people. That ranks 8 of 23 counties in Wyoming. The most recent was on June 17, 2025 (rated unknown).
Strongest tornadoes in Niobrara County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 28, 1978 | F2 | Niobrara County | 5 mi | 700 yd | 0 | 0 |
| June 13, 1984 | F2 | Niobrara County | 4 mi | 30 yd | 0 | 1 |
| June 5, 1982 | F2 | Niobrara County | 1 mi | 17 yd | 0 | 3 |
| June 11, 1953 | F1 | Niobrara County | 7.2 mi | 67 yd | 0 | 0 |
| June 7, 2022 | EF1 | Niobrara County | 3.5 mi | 225 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 17, 2025 | ? | Niobrara County | 0.1 mi | 10 yd | 0 | 0 |
| June 17, 2025 | ? | Niobrara County | 0.1 mi | 10 yd | 0 | 0 |
| June 7, 2022 | EF1 | Niobrara County | 3.5 mi | 225 yd | 0 | 0 |
| July 17, 2019 | ? | Niobrara County | 0.3 mi | 20 yd | 0 | 0 |
| July 3, 2019 | ? | Niobrara County | 0 mi | 50 yd | 0 | 0 |
About Niobrara County
- Population: 2,301 (2024 estimate)
- State: Wyoming
- NOAA Weather Radio SAME code: 056027 (how to use it)