Flood Advisory — Delaware County, Ohio
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 10 at 12:19PM EDT until August 10 at 3:15PM EDT by NWS Wilmington OH
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Southwestern Delaware County in central Ohio... Franklin County in central Ohio... Northeastern Madison County in central Ohio... Southern Union County in central Ohio... * WHEN...Until 315 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1219 PM EDT, radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 1.5 inches are possible. - Some locations that may experience flooding include... Columbus, Dublin, Westerville, Reynoldsburg, Grove City, Upper Arlington, Gahanna, Hilliard, Marysville, Worthington, Bexley, Powell, Groveport, Plain City, Minerva Park, New California, Lake Darby and Ohio State University.
Effective August 10, 2026 at 12:19 PM ET · Expires August 10, 2026 at 3:15 PM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Wilmington OH
Expires
August 10, 2026 at 3:15 PM ET
Last Checked
2 minutes ago
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 Advisory also covers:
Other Active Alerts in Ohio
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Get Flood Advisory Alerts for Delaware County
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Frequently Asked Questions
What does a Flood Advisory mean for Delaware County, Ohio?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (2 minutes ago). It's set to expire August 10, 2026 at 3:15 PM ET.
How do I get notified about Flood Advisory alerts for Delaware County?
Download StormCast free on Google Play and set Delaware 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 Advisory is also in effect for Franklin County, Union County, Madison County.