Flood Watch Extended Through Thursday Evening for Mercer, Venango, Forest, Clarion, Jefferson PA
The Flood Watch for Mercer, Venango, Forest, Clarion, and Jefferson counties now runs through Thursday evening, later than originally issued.
Everything reported for Elk County and within 40 miles of it, at every level. Warnings and official records name the county they apply to, which is the level most of them are issued at.
The Flood Watch for Mercer, Venango, Forest, Clarion, and Jefferson counties now runs through Thursday evening, later than originally issued.
The National Weather Service has extended a Flood Watch for 36 central Pennsylvania counties, including Warren, McKean, and Potter, through Thursday evening.
The National Weather Service warns of possible flash flooding from excessive rainfall in central Pennsylvania on Saturday, August 22, 2026.
The National Weather Service has issued a Dense Fog Advisory for portions of Ohio, Pennsylvania, and West Virginia, including Harrison, Jefferson OH, and Guernsey, with visibility of one quarter mile or less.
The National Weather Service warns of hazardous driving conditions due to reduced visibility in dense fog across central Pennsylvania, including Warren, McKean, and Potter counties.
Excessive runoff could flood rivers and urban areas across 15 central Pennsylvania zones on August 20, 2026.