Storms bring multiple tornado warnings to western Pennsylvania – CBS News

Storms bring multiple tornado warnings to western Pennsylvania  CBS News

Multiple tornado warnings were scattered across western Pennsylvania on Tuesday evening. The National Weather Service issued tornado warnings for parts of Butler, Lawrence, Forest, Clarion, Venango and Jefferson counties between 7 p.m. and 8:15 p.m. All the tornado warnings have since expired.In a social media post, NWS Pittsburgh said it had video confirmation that a tornado was on the ground near Portersville, Butler County. The original forecast story can be found below. The National Weather Service forecast severe storms between 12 p.m. and 8 p.m. on Tuesday. A severe thunderstorm watch was in effect for Allegheny, Beaver, Fayette, Greene, Washington and Westmoreland counties, but it was canceled early. The chance for severe storms shifted slightly south around noon.

While places north of Butler, like Mercer and Venango counties, are under a slight risk, much of the area is under an "enhanced" risk for severe weather, meaning there is a higher confidence that severe storms could take place."Several severe storms could be significant," the NWS said, adding that "significant" is defined by wind gusts of at least 75 miles per hour, hail of at least two inches, or a tornado of at least an EF-2 category. In addition to the hail, wind and tornado risks, the NWS has also issued a flood watch for parts of western Pennsylvania. The watch takes