Flash Flood Warning for Central Knox County, OH
This alert is no longer in effect.
NOAA issued it on September 17, 2026, 3 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Cleveland has issued a Flash Flood Warning for Central Knox County in north central Ohio until 12:30 AM EDT Thursday due to heavy rainfall from thunderstorms.
30 seconds on this weather notice
- Record type
- Flash Flood Warning
- Affected area
- Central Knox County, Ohio
- Issued
- September 17, 2026
- Issuing authority
- NWS Cleveland 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: historical. It was issued 3 days ago; use the issuing agency's live warning service for current conditions in Central Knox County, Ohio.
Alert Details
Flash Flood Warning issued by NWS Cleveland OH. Effective from September 16 at 9:25 PM EDT until September 17 at 12:30 AM EDT. Severity: Severe. Certainty: Likely. Urgency: Immediate.
Affected Areas
Central Knox County in north central Ohio. Specific locations include Mount Vernon, Fredericktown, Gambier, Danville and Gann.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Expected Conditions
Doppler radar indicated thunderstorms producing heavy rain. Between 1.5 and 3 inches of rain have fallen, with additional rainfall amounts up to 1 inch possible. Flash flooding is ongoing or expected to begin shortly.
Timeline
The warning is in effect until 12:30 AM EDT on September 17, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Comparable nationwide notices (length or severity timing) 8
Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.
Similar body length
Nearest notices by article body length (874 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 17, 2026.
Common Questions
Common questions about this NWS weather alert.