OHIO RESERVOIR REPORT

Last Updated: December 29, 2025

As of December 2025, observations on Ohio's dams and reservoirs suggest some irregularities in storage levels, particularly at the O'Shaughnessy Reservoir near Dublin, Ohio. The latest measurements indicate that the reservoir's water surface elevation is at 847 feet, slightly below the average of 847.62 feet. This discrepancy in the water level could be a concern for the local ecosystem and water supply management. The deviation from the average height, although minor, points to potential issues such as altered precipitation patterns or changes in upstream water usage.

Upon examining the weather patterns in Ohio throughout 2025, as reported by Cleveland.com, a series of cold snaps, heat waves, and dry spells have been prominent, possibly affecting the water inputs and evaporation rates in the state's reservoirs. Additionally, an advisory from the Ohio State Fire Marshal, as mentioned by Mahoning Matters, about the removal of live trees post-holidays could imply increased awareness of fire hazards following drier conditions. These conditions, combined with the observed water levels at the O'Shaughnessy Reservoir, suggest that the abnormal readings may relate to unusual weather events experienced over the year. While the current storage level is not yet at a critical point, the trend warrants continued monitoring to prepare for any water management adjustments that might be necessary if these irregular patterns persist.

Ohio has several major reservoirs, including Buckeye Lake, Grand Lake St. Marys, and Caesar Creek Lake. These reservoirs are fed by various streams, rivers, and creeks, such as the Licking River, the St. Marys River, and Caesar Creek. Ohio does not have any significant snowpack or mountains that affect its reservoirs. The hydrology of Ohio is primarily influenced by the state's geography, which is characterized by rolling hills and flat plains. Records show that Ohio has experienced major floods in the past, including the Great Dayton Flood of 1913, which resulted in significant damage and loss of life. Drought conditions in Ohio have been relatively rare, but the state has experienced occasional droughts over the years. Seasonal trends show that spring and summer are typically the wettest seasons in Ohio, while fall and winter are drier. Overall, Ohio's reservoirs and dams play a crucial role in providing water for the state's residents and industries.

Ohio has several major reservoirs, including Buckeye Lake, Grand Lake St. Marys, and Caesar Creek Lake. These reservoirs are fed by various streams, rivers, and creeks, such as the Licking River, the St. Marys River, and Caesar Creek. Ohio does not have any significant snowpack or mountains that affect its reservoirs.

The hydrology of Ohio is primarily influenced by the state's geography, which is characterized by rolling hills and flat plains. Records show that Ohio has experienced major floods in the past, including the Great Dayton Flood of 1913, which resulted in significant damage and loss of life.

Drought conditions in Ohio have been relatively rare, but the state has experienced occasional droughts over the years. Seasonal trends show that spring and summer are typically the wettest seasons in Ohio, while fall and winter are drier. Overall, Ohio's reservoirs and dams play a crucial role in providing water for the state's residents and industries.