Flash Flood Warning for Mercer County, OH
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Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flash Flood Warning is in effect for Mercer County in west central Ohio until 7:00 AM EDT on September 16.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- West Central Ohio
- Issued
- September 16, 2026
- Issuing authority
- NWS Wilmington OH
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Flash Flood Warning issued by NWS Wilmington OH. Effective from 2026-09-16T03:09:00-04:00 until 2026-09-16T07:00:00-04:00. Severity: Severe. Urgency: Immediate. Certainty: Likely.
Affected Areas
Mercer County in west central Ohio. Some locations that may experience flash flooding include Celina, Coldwater, St. Henry, Fort Recovery, Rockford, Wabash, Mendon, Chickasaw, Montezuma, Tama, Carthagena, Neptune, Chattanooga and Maria Stein.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. To report flash flooding, go to weather.gov/iln and submit your report via social media, when you can do so safely.
Expected Conditions
At 3:09 AM EDT, radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 1.5 inches are possible. Flash flooding is ongoing or expected to begin shortly. Hazard: Flash flooding caused by thunderstorms. Impact: Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.
Timeline
Alert effective starting 2026-09-16T03:09:00-04:00 and ends 2026-09-16T07:00:00-04:00.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,269 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 16, 2026.
Questions & Answers
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