Flood Warning — Union County, Ohio
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Current Status
🌊 Active: Flood Warning
Flood Warning issued August 11 at 1:27AM EDT until August 11 at 5:30AM EDT by NWS Wilmington OH
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Northwestern Union County in central Ohio... Southeastern Hardin County in west central Ohio... Northeastern Logan County in west central Ohio... * WHEN...Until 530 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 126 AM EDT, radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 2 and 5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected until later today. - Some locations that may experience flooding include... Belle Center, West Mansfield, Northwood, Mount Victory, Rushsylvania, Ridgeway, Big Springs, Mentzer, Silver Creek and Byhalia.
Effective August 11, 2026 at 1:27 AM ET · Expires August 11, 2026 at 5:30 AM ET
Event Details
Event Type
Flood Warning
Severity
severe
Issued By
NWS Wilmington OH
Expires
August 11, 2026 at 5:30 AM ET
Last Checked
just now
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. To report flooding, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.
Also In Effect For
This same Flood Warning also covers:
Other Active Alerts in Ohio
Flood Warning
Flood Warning
Flash Flood Warning
Flash Flood Warning
Flash Flood Warning
Flood Advisory
Get Flood Warning Alerts for Union County
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Frequently Asked Questions
What does a Flood Warning mean for Union County, Ohio?
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Is this Flood Warning currently active?
Yes — this alert is active as of our last check (just now). It's set to expire August 11, 2026 at 5:30 AM ET.
How do I get notified about Flood Warning alerts for Union County?
Download StormCast free on Google Play and set Union County, Ohio as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flood Warning is also in effect for Hardin County, Logan County.