Parts of western Pennsylvania hit by flash flooding, some area roads remain closed

PITTSBURGH — UPDATE 8:45 p.m.

A flash flood was reported in Westmoreland County at 8:05 p.m. Officials reported flooding near the intersection of Sand Hill Road and Route 30. A pick up truck was reportedly trapped in water, and rescue was needed.

The following roads are closed due to flooding:

Allegheny County

  • Route 8 (Washington Boulevard) between Negley Run Boulevard and Allegheny River Boulevard in the City of Pittsburgh due to flooding (flood gates closed)
  • Route 30 between Fifth Avenue and the Westinghouse bridge
  • Route 130 Allegheny River Boulevard at the intersection with Thompson Run Road due to flooding
  • Route 130 Allegheny River Boulevard at the intersection with Payton Street due to flooding
  • Route 837 (South Duquesne Boulevard) in the northbound direction only beneath the McKeesport-Duquesne Bridge in the City of McKeesport due to a slide
  • Route 885 between Glass Run Road and Mifflin Road in the City of Pittsburgh due to flooding

Lawrence County

  • Old Plank Road (Route 1003) between Decker Drive and Highland Avenue in Neshannock Township due to flooding

UPDATE 8 p.m.

The Pittsburgh Zoo & PPG Aquarium will be closed Saturday, Aug. 6 for storm clean up.

UPDATE 7:35 p.m.

A report by the National Weather Service located flash flooding at 07 p.m. at Rochester Road and Route 19 in Beaver County. Cars are stalled in the water. 2.26 inches of rain reported in the area.

UPDATE 7:30 p.m.

The National Weather service has confirmed a flash flood at the intersection of Beallsville and Main Street in Washington County. They have also reported a landslide and flooded roadway on Sunset Drive in Washington County. The service said there are heavy rocks and debris in the roadway.

UPDATE 7:15 p.m.

Duquesne Light Electric Company reports:

567 power outages in East Liberty

301 power outages in O’Hara Township

231 power outages in Wilkinsburg

West Penn Power reports:

395 power outages in Butler County

128 outages in Fayette County

197 power outages in Greene County

1,091 power outages in Lawrence County

339 power outages in Washington County

UPDATE 7:00 p.m.

The Pittsburgh Steelers have announced they will be cancelling their first Friday Night Lights practice of the year due to poor weather conditions.

UPDATE 6:55 p.m.

The FLASH FLOOD WARNING for Westmoreland County has been extended to 10:00 p.m.

UPDATE 6:45 p.m.

Fans watching the Pittsburgh Steeler’s Friday Night Lights practice have been cleared out of Latrobe Memorial Stadium due to lightning in the area.

UPDATE 6:35 p.m.

The FLASH FLOOD WARNING for Allegheny County has been extended to 9:45 p.m. Portions of Westmoreland County are now also under a FLASH FLOOD WARNING. That warning is expected to end at 9:45 p.m.

UPDATE 6:30 p.m.

PennDOT says traffic restrictions have begun on PA 28 northbound between the Highland Park Bridge exit and the Fox Chapel Road exit due to a downed tree.

UPDATE 6:25 p.m.

A FLASH FLOOD WARNING has been issued for parts of Washington, Fayette and Greene counties. The warning is expected to end at 9:15 p.m.

UPDATE 6:20 p.m.

Multiple streets in Allegheny County have been closed due to flooding. Pittsburgh Public Safety said that Washington Boulevard and Allegheny River Boulevard in Highland Park have been closed.

Additionally, Freeport road has been closed in Aspinwall.

UPDATE 6:05 PM: The National Weather Service has issued a FLASH FLOOD WARNING for parts of Butler County. The warning is expected to be in effect until 8:00 p.m.


A FLASH FLOOD WARNING has been issued for Allegheny County by the National Weather Service. The warning is expected to end at 7:00 p.m.


Keep the umbrella handy and check the WPXI Weather app before you head out tonight and this weekend. A flood watch is in effect for Washington, Fayette and Greene counties until 11 p.m. tonight.

Scattered showers and storms will continue this afternoon and evening. Pockets of rain could produce downpours that could lead to flash flooding. Remember never to drive through flooded roadways and if you see rising water, get to higher ground. Heavy rain can also reduce visibility when driving, and if you hear thunder, head indoors.

Humid and unsettled this weekend, but we will have more dry times than wet. Scattered showers and a few storms are possible on Saturday with more spotty showers and storms Sunday. Temperatures will remain in the low to mid 80s. This unsettled and humid pattern continues through most of the next week.

Get the latest forecast for Severe Weather Team 11 on Channel 11 News.