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Cincinnati, OH Warnings, Watches and Advisories

NWS Active Alerts for OH - Map View

State: OH Total alerts: 6 Updated: Sep 17, 2026 8:50am EDT

Flash Flood Warning

Area
Auglaize, OH; Mercer, OH
Flash Flood Warning issued September 17 at 8:26AM EDT until September 17 at 11:00AM EDT by NWS Wilmington OH

FFWILN The National Weather Service in Wilmington has extended the * Flash Flood Warning for... Northwestern Auglaize County in west central Ohio... Mercer County in west central Ohio... * Until 1100 AM EDT. * At 826 AM EDT, radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.5 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.

Flash Flood Warning

Area
Adams, IN; Huntington, IN; Wells, IN; Van Wert, OH
Flash Flood Warning issued September 17 at 7:44AM EDT until September 17 at 2:15PM EDT by NWS Northern Indiana

FFWIWX The National Weather Service in Northern Indiana has issued a * Flash Flood Warning for... Adams County in northeastern Indiana... Huntington County in northeastern Indiana... Wells County in northeastern Indiana... Southwestern Van Wert County in west central Ohio... * Until 215 PM EDT Thursday. * At 744 AM EDT, Scattered showers and thunderstorms continue across the warned area. Doppler radar estimates between 2 and 5 inches of rain have fallen overnight. Another round of heavy rainfall is possible mid to late morning. Additional rainfall amounts of 0.5 to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Huntington, Bluffton, Decatur, Berne, Ossian, Geneva, Andrews, Markle, Monroe, Lancaster, Preble, Nottingham, Zanesville, Willshire, Uniondale, Wren, Poneto, Vera Cruz, Murray and North Oaks. Several reports of flooded roads and water rescues have been received this morning.

Special Weather Statement

Area
Greenup; Carter; Boyd; Lawrence; Jackson; Vinton; Meigs; Gallia; Lawrence; Wayne; Cabell; Mason; Jackson; Lincoln; Putnam; Kanawha; Roane; Mingo; Logan; Boone
Special Weather Statement issued September 17 at 5:12AM EDT by NWS Charleston WV

Temperatures this afternoon into the early evening will reach the upper 80s to low 90s across the area. This, combined with high humidity, will result in heat indices ranging from the mid 90s to near 100 degrees in some locations. Try to limit time outdoors this afternoon when heat illness is most likely to occur. If going outdoors, make sure to drink plenty of fluids and take breaks out of the sun.

Special Weather Statement

Area
Franklin; Ripley; Dearborn; Ohio; Switzerland; Carroll; Gallatin; Boone; Kenton; Campbell; Owen; Grant; Pendleton; Bracken; Robertson; Mason; Lewis; Butler; Warren; Clinton; Ross; Hamilton; Clermont; Brown; Highland; Adams; Pike; Scioto
Special Weather Statement issued September 17 at 5:06AM EDT by NWS Wilmington OH

Temperatures will reach the lower to mid 90s this afternoon. Combined with high humidity, maximum heat indices will be in the upper 90s to around 100 degrees. Try to limit time outdoors today during the afternoon when heat illness is most likely to occur. If going outdoors, drink plenty of fluids and take breaks out of the sun.

Flood Watch

Area
Hardin; Mercer; Auglaize; Darke; Shelby; Logan; Union; Delaware; Miami; Champaign; Clark; Madison; Franklin; Licking
Flood Watch issued September 17 at 2:22AM EDT until September 17 at 2:00PM EDT by NWS Wilmington OH

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central and west central Ohio, including the following counties, in central Ohio, Delaware, Franklin, Licking, Madison and Union. In west central Ohio, Auglaize, Champaign, Clark, Darke, Hardin, Logan, Mercer, Miami and Shelby. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Multiple rounds of showers and thunderstorms will move across parts of the area this morning, possibly extending into early afternoon. This may result in bands of heavier rainfall that could lead to flash flooding.

Flood Watch

Area
Whitley; Allen; Miami; Wabash; Huntington; Van Wert; Allen
Flood Watch issued September 17 at 2:21AM EDT until September 17 at 2:00PM EDT by NWS Northern Indiana

* WHAT...Flooding caused by excessive rainfall possible. * WHERE...Portions of northern Indiana and northwest Ohio. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - One to as much as five inches of rain has fallen across the watch area. Additional amounts of one to two inches, with higher amounts, are possible through early this afternoon. - http://www.weather.gov/safety/flood

SAFETY and DATA MESSAGE

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Cincinnati.

Use the Radar Maps link provided to understand the trajectory of a storm.

For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.

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