Union County weather alerts
There are no active weather alerts for Union County, AR right now.
Since 2016 the National Weather Service has issued about 948 alerts that included Union County, roughly 95 a year. The most common is the severe thunderstorm warning (221 from 2016 to 2025). The last tornado warning was issued on November 3, 2026. 40 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 Union County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Union Parish, Bradley County, Ashley County, Claiborne Parish.
Union County alert history
Alert events that included Union County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 221 | 18 | November 3, 2026 |
| Heat Advisory | 109 | 10 | September 12, 2026 |
| Tornado Watch | 86 | 3 | April 28, 2026 |
| Flood Warning | 83 | 1 | February 19, 2026 |
| Severe Thunderstorm Watch | 68 | 6 | August 26, 2026 |
| Dense Fog Advisory | 61 | 3 | February 16, 2026 |
| Flash Flood Warning | 49 | 4 | July 4, 2026 |
| Flood Watch | 48 | 3 | June 22, 2026 |
| Flood Advisory | 47 | 3 | July 13, 2026 |
| Tornado Warning | 40 | 1 | November 3, 2026 |
| Wind Advisory | 32 | 2 | October 16, 2026 |
| Extreme Heat Warning | 28 | 2 | August 21, 2026 |
| Freeze Warning | 26 | 3 | November 14, 2026 |
| Winter Weather Advisory | 16 | 0 | February 18, 2025 |
| Cold Weather Advisory | 13 | 1 | January 31, 2026 |
| Winter Storm Warning | 8 | 1 | January 24, 2026 |
| Freeze Watch | 5 | 0 | November 10, 2025 |
| Winter Storm Watch | 4 | 1 | January 23, 2026 |
| Tropical Storm Warning | 1 | 0 | August 26, 2020 |
| Red Flag Warning | 1 | 1 | October 16, 2026 |
| Extreme Cold Watch | 1 | 1 | January 26, 2026 |
| Frost Advisory | 1 | 0 | November 3, 2025 |
| Extreme Cold Warning | 0 | 1 | January 26, 2026 |
| Fire Weather Watch | 0 | 1 | October 16, 2026 |
| Ice Storm Warning | 0 | 1 | January 24, 2026 |
Tornado history in Union County
40 tornadoes have been recorded in Union County since 1950, killing 3 people and injuring 30. That ranks 15 of 75 counties in Arkansas. The most recent was on June 18, 2023 (rated EF2).
Strongest tornadoes in Union County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| January 12, 2005 | F3 | Union County | 24 mi | 900 yd | 2 | 13 |
| February 24, 2007 | EF3 | Union County | 26 mi | 250 yd | 0 | 5 |
| March 28, 1972 | F3 | Union County | 10.4 mi | 880 yd | 0 | 0 |
| December 3, 1978 | F2 | Union County | 6.4 mi | 50 yd | 1 | 7 |
| April 24, 2003 | F2 | Union County | 16.7 mi | 125 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 18, 2023 | EF2 | Union County | 10.3 mi | 1,320 yd | 0 | 0 |
| January 18, 2023 | EF1 | Union County | 9.3 mi | 840 yd | 0 | 0 |
| January 2, 2023 | EF1 | Union County | 0.2 mi | 350 yd | 0 | 0 |
| June 7, 2021 | ? | Union County | 1.6 mi | 25 yd | 0 | 0 |
| April 14, 2018 | EF1 | Union County | 5.1 mi | 1,200 yd | 0 | 0 |
About Union County
- Population: 37,008 (2024 estimate)
- State: Arkansas
- NOAA Weather Radio SAME code: 005139 (how to use it)