OHIO FLOW REPORT

Last Updated: December 29, 2025

The state of Ohio is currently experiencing a diverse range of streamflow conditions across its rivers and streams, which are of significant interest to water enthusiasts and communities alike. Notably, the Ottawa River at the University of Toledo witnessed a dramatic spike in streamflow with a 1117.67% change over the last 24 hours, with a current streamflow of 113 cubic feet per second (cfs), although this remains 28.77% of the normal flow for this location. The Great Miami River at Miamisburg also shows a substantial flow of 1900 cfs, but this is 24.73% below the typical flow, indicating potential flow drought conditions. Conversely, Holes Creek near Kettering has surged to 159 cfs, which is an impressive 347.64% of the normal flow, signaling a risk of flooding in the surrounding areas. Waterways including the Maumee River at Antwerp, Sandusky River near Fremont, and Scioto River at Columbus are all reporting flows substantially below normal, which could affect recreational activities and local ecosystems.

Cities such as Toledo, Dayton, and Columbus may need to monitor water levels closely given the drastic changes in some areas. For instance, the Mad River near Dayton is running at 554 cfs, 39.7% below normal, while the Scioto River at Columbus is at 519 cfs, a concerning 83.09% below normal. The whitewater community should take note of the Chagrin River at Willoughby, where the streamflow has increased by 213.73%, reaching a current level of 1280 cfs, which may enhance conditions for whitewater activities. The Grand River near Painesville and Conneaut Creek at Conneaut are also experiencing high flows at 2720 cfs and 964 cfs respectively, both well above their normal rates, which could attract thrill-seekers but also pose safety concerns. These patterns suggest a mix of potential flow droughts and flooding events across Ohio's watersheds, highlighting the importance of vigilance and preparedness for communities and river enthusiasts in the face of variable water conditions.

       



Ohio's hydrology is influenced by its location in the midwestern United States, experiencing a humid continental climate. Major surface waters include Lake Erie and the Ohio River, which flows through the state and serves as a border with neighboring Kentucky and West Virginia. Other major rivers and tributaries include the Muskingum River, the Cuyahoga River, and the Maumee River. The state's hydrology is impacted by numerous reservoirs and dams, including the Hoover Reservoir and the Grand Lake St. Marys. Snowpack and watershed data are also relevant in Ohio's hydrology, with the state experiencing frequent snowfall in the winter months and a variety of watersheds throughout the state.


       

Winter Storm Warnings

December 29 2025

Ohio residents are urged to exercise caution as multiple wind advisories and high wind warnings are in effect across the state. West winds ranging from 15 to 40 mph, with gusts up to 60 mph, are expected, posing risks such as downed tree limbs and power lines, leading to potential widespread power outages. Lake effect snow with accumulations of 3 to 6 inches, along with blizzard-like conditions, could severely impact travel, particularly in northeast Ohio. Cities including Lorain, Cuyahoga, and Ashtabula may face damaging winds, while areas such as Erie, Huron, and Lucas should brace for hazardous conditions that may affect the Monday evening and Tuesday morning commutes.


       
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