Every severe weather report published for Union County, Pennsylvania, newest first.
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 that hot temperatures and high humidity may cause heat illnesses across south central Pennsylvania from 11 AM to 8 PM EDT Thursday, September 3, 2026, when the advisory expires.
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.