Flash flooding reported in some areas

Parts of Allegheny and Westmoreland counties were impacted by heavy rain Friday evening.

By HALEY MORELAND TribLive

As of 9:30 p.m. Friday, the National Weather Service had lifted several flash flood and severe thunderstorm warnings for Allegheny, Washington and Westmoreland counties.

Flash flood warnings were issued beginning at 5:45 p.m. and intermittently lifted throughout the evening, with forecasts predicting 1 to 2 inches of rainfall per hour.

Several areas experienced flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor-drainage and low-lying areas, including Jefferson Hills and Finleyville.

In the preceding 24 hours, including early in the morning, rainfall peaked between 2.5 and 3 inches in southern Allegheny and western Westmoreland.

At 7:45 p.m., the National Weather Service issued a severe thunderstorm warning for northeastern Allegheny County, with storms moving east at 25 mph. That warning was lifted.

Areas most impacted by severe weather included Penn Hills, Ross Township, McCandless, Franklin Park, Shaler, Plum, Hampton, O’Hara, Bellevue, West View, Stowe Township, Oakmont, Fox Chapel, Arnold, Avalon, Tarentum and Millvale.

Jared Rackley, meteorologist with the National Weather Service, said the agency got reports of fallen trees from severe winds in Gibsonia, Millvale, Ross Township, Greensburg, Murrysville and the Delmont area.

Flash flooding impacted much of Westmoreland County.

Authorities with Westmoreland County Department of Public Safety reported 19 calls about flooded basements, particularly in Greensburg, Hempfield, New Stanton and Lynchfield areas.