Follow KDKA-TV: Facebook | Twitter

PITTSBURGH (KDKA) — The National Weather Service in Pittsburgh issued a flood watch for the area on Saturday.

READ MORE: Clairton City School District Moves To Remote Learning On Friday After Threat

The watch covers parts of Ohio, West Virginia and Pennsylvania, including Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette, Greene, Indiana, Lawrence, Washington and Westmoreland counties.

READ MORE: Fantasy Football Start Or Sit Week 13: Elijah Mitchell Looks To Take Advantage Of Seahawks' Defense

The watch runs from Saturday evening through Monday evening.

With four inches of rain expected by late Monday, Pittsburgh will surpass its average annual rainfall.

MORE NEWS: Renowned Chef Kevin Sousa Departs New Mount Oliver Restaurant

An early indication of the problems the rain could poise this weekend came Saturday morning when a portion of Route 30 in East Pittsburgh was closed due to a small landslide.