NWS Wilmington OHFF.W 0090September 17, 2026
Flash Flood Warning: Auglaize and Mercer, OH
The National Weather Service office in Wilmington issued a flash flood warning for Auglaize and Mercer in Ohio, which was in force until 9:00 a.m. local time on September 17. It was the 90th flash flood warning the NWS office in Wilmington issued in 2026. Ohio had 62 flash flood warnings in September 2026, against 3 in an average September of 2008-2025 (Ohio's flash flood warnings by year).
ExpiredWarning
In force for 2.9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Wilmington OH
- Area
- Auglaize and Mercer
- State
- Ohio
- Level
- Warning
- Issued
- 6:06 a.m. EDT, September 17, 2026
- Expires
- 9:00 a.m. EDT, September 17, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KILN FF.W 0090
- Official source
- National Weather Service: the notice at its source
Flash Flood Warnings in Ohio since 2008Every warning type in Ohio
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWILN The National Weather Service in Wilmington has issued a * Flash Flood Warning for... Northwestern Auglaize County in west central Ohio... Mercer County in west central Ohio... * Until 900 AM EDT. * At 606 AM EDT, radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that may experience flash flooding include... Celina, St. Marys, Coldwater, New Bremen, Rockford, Wabash, Mendon, Chickasaw, Montezuma, Tama, Neptune, Carthagena, Bulkhead, State Route 116 at State Route 197, Chattanooga and Kossuth.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. To report flash flooding, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.