Flood Warning Issued for Little Miami River in Greene and Warren Counties, OH
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NWS Wilmington OH has issued a Flood Warning for the Little Miami River at Spring Valley, with minor flooding forecast from early August 20 to August 21.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Greene and Warren Counties, Ohio
- Issued
- August 20, 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
Flood Warning issued by NWS Wilmington OH. Effective from 2026-08-20T04:37:00-04:00 until 2026-08-21T08:00:00-04:00. Severity: Severe. Certainty: Likely. Urgency: Expected.
Affected Areas
Greene County, OH and Warren County, OH, specifically the Little Miami River at Spring Valley. Impacts include low-lying areas near Spring Valley, Roxanna, and east of Waynesville.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
At 4:00 AM EDT on 2026-08-20 the stage was 8.9 feet. Minor flooding is forecast. The river will rise above flood stage (11.0 feet) this morning and crest near 12 feet this evening.
Timeline
Alert effective early morning 2026-08-20. River expected to fall below flood stage Friday evening 2026-08-21.
Original source: NOAA Official Notice ↗
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