Heavy rain moved through portions of central and southern Ohio Wednesday, causing minor flooding and widespread ponding on area roadways that made the commute difficult at times.
The first of two waves of rain deposited .50-1.0 inch of rain north of Interstate 70, accompanied by patchy dense fog. Farther south, rainfall totals ranged up to 1.5 inches, and flood advisories were issued for Fairfield, Pickaway, Ross and Hocking counties Wednesday night.
Flood-prone roads were quickly covered by water, including a low-lying section of State Route 752 east of US 23 in Pickaway County, near Ashville. Flood warnings were posted for portions of the Scioto River, including Marion County at LaRue and Prospect, where minor flooding is expected to affect roads through early Friday.
Flood warnings were issued for southern Ross, Pike, Jackon, Vinton, Morgan and Athens counties Wednesday night due to numerous road closures, and for streams and creeks.
Field runoff is contributing to flooding concerns in rural areas. The latest rain fell on saturated ground following last Friday’s 3- to 6-inch snowfall, which melted but left the ground soggy. The subsoil is still partly frozen following a visit from the polar vortex, increasing the runoff because the ground is unable to absorb all the moisture.
An additional 1 to 2 inches of rain is expected on Thursday, adding to the potential flooding threat, before dramatically colder and drier air moves in Thursday night and Friday.