2 alerts are in effect for Union County as of 5:06 PM CDT.
Open the live map on Union County Get a message when a warning reaches your address
The map shows radar, every warning shape, and the path and arrival time of each storm cell headed toward the center of Union County. Tap your own street on it for times that apply to you.
RED FLAG WARNING REMAINS IN EFFECT UNTIL 1 AM CDT SATURDAY
Please advise the appropriate officials or fire crews in the field of this Red Flag Warning. Follow all fire restrictions. One less spark, one less wildfire. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life-threatening. This…
WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT SATURDAY
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
No tornado warning has included Union County in the last 12 months.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Sep 12, 2026 | 7:28 PM CDT | Severe thunderstorm warning | SHV | text |
| Aug 20, 2026 | 6:27 PM CDT | Severe thunderstorm warning | SHV | text |
| Aug 7, 2026 | 6:54 PM CDT | Severe thunderstorm warning | SHV | text |
| Jul 4, 2026 | 5:45 PM CDT | Severe thunderstorm warning | SHV | text |
| Jul 4, 2026 | 5:06 PM CDT | Flash flood warning | SHV | text |
| Jul 4, 2026 | 4:55 PM CDT | Severe thunderstorm warning | SHV | text |
| Jul 4, 2026 | 4:21 PM CDT | Severe thunderstorm warning | SHV | text |
| Jun 24, 2026 | 5:10 AM CDT | Flash flood warning | SHV | text |
| Jun 23, 2026 | 10:25 PM CDT | Severe thunderstorm warning | SHV | text |
| Jun 23, 2026 | 9:39 PM CDT | Severe thunderstorm warning | SHV | text |
| Jun 20, 2026 | 12:03 PM CDT | Flash flood warning | SHV | text |
| Jun 20, 2026 | 3:50 AM CDT | Flash flood warning | SHV | text |
A warning counts here if the Weather Service listed Union County in it, even if the warned area covered only part of the county.
Alerts come from the National Weather Service and refresh every minute. Past warnings come from the Iowa Environmental Mesonet's archive of Weather Service products. During a warning, also listen to local radio, TV or a weather radio.