Flood Warning for Saint Marys River near Decatur
This alert is no longer in effect.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.
A Flood Warning has been issued for the Saint Marys River near Decatur affecting Adams, Allen IN and Van Wert Counties through Tuesday afternoon.
The weather record, at a glance
- Record type
- Flood Warning
- Affected area
- Northern Indiana and Ohio
- Issued
- September 17, 2026
- Issuing authority
- NWS Northern Indiana
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 Northern Indiana and Ohio.
Alert Details
Flood Warning issued by NWS Northern Indiana. Effective from September 17 at 10:08AM EDT, with onset at 7:21PM EDT on September 17. Expires September 18 at 4:15AM EDT and ends September 22 at 1:00PM EDT.
Affected Areas
Saint Marys River near Decatur affecting Adams, Allen IN and Van Wert Counties. Also Saint Marys River at St. Mary's River near Fort Wayne affecting Allen IN County.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Detailed river forecasts available at www.weather.gov/iwx under Rivers and Lakes.
Expected Conditions
Moderate flooding is forecast. At 21.5 feet, high water affects Piqua Rd, Ohio State Route 49 near the state line, and east side Decatur streets. Residential flooding begins on East Jackson and Ogg Streets. Bellmont High School grounds begin flooding.
Timeline
From this evening to Tuesday afternoon. River expected to rise above flood stage this evening to a crest of 21.5 feet early Sunday morning, then fall below flood stage early Monday afternoon. Flood stage is 17.0 feet.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
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Similar severity timing
Same severity (high) notices issued closest in time to September 17, 2026.
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