Heavy Rain and Flood Threat for Western Pennsylvania This Weekend

Heavy Rainfall: Expect an additional 1 to 3 inches of rain across the region through Sunday.

Peak Timing: The most widespread and heaviest rain is anticipated Saturday night into Sunday morning.

Flood Watch: A Flood Watch is in effect until 8 a.m. Sunday for Allegheny, Fayette, Greene, Monongalia, Washington, and Westmoreland Counties.

River Flooding: The Ohio River at Pittsburgh is forecast to reach flood stage, impacting key areas.

Temperature Swing: Temperatures will be unusually warm on Saturday (around 73°F) before dropping significantly on Sunday (high around 50°F, falling through the day).

Why this matters: Heavy rainfall following previous precipitation increases the risk of flash flooding and river flooding, potentially disrupting travel, impacting low-lying areas, and causing property damage. Staying informed about watches and warnings is crucial.

Ohio River (Pittsburgh): Forecast to reach 18 feet (Mon Wharf flooding) Sunday morning, potentially 19 feet (North Shore Riverwalk flooding) by Sunday afternoon, and crest at 22 feet early Monday morning.

Impact: A crest at 22 feet will inundate the Mon Wharf, parts of the North Shore Riverwalk, and notably, the Tenth Street Bypass, impacting downtown commutes early next week.

Monitor updates from the National Weather Service and local news.

Have a way to receive weather alerts (NOAA Weather Radio, smartphone apps).

Avoid driving through flooded roadways – "Turn Around, Don't Drown."

Check sump pumps and ensure drainage areas are clear of debris.

If in a flood-prone area, review your emergency plan and be prepared to move to higher ground if necessary.

Residents living in low-lying areas or near streams, creeks, and rivers under the Flood Watch.

Commuters who use the Mon Wharf, North Shore Riverwalk, or the Tenth Street Bypass in Pittsburgh.

Anyone planning outdoor activities this weekend.

Q: How much rain is expected?

A: An additional 1 to 3 inches on top of recent rainfall is forecast for the weekend.

Q: When will the heaviest rain occur?

A: The most widespread and heaviest rain is expected Saturday night into Sunday morning.

Q: Which areas are under a Flood Watch?

A: Allegheny, Fayette, Greene, Monongalia, Washington, and Westmoreland Counties until 8 a.m. Sunday.

Q: Will the rivers flood?

A: Yes, the Ohio River in Pittsburgh is expected to reach flood stage, impacting the Mon Wharf, North Shore Riverwalk, and the Tenth Street Bypass by early Monday.

Be aware of the Flood Watch in effect for much of the region through Sunday morning.

Expect heavy rain, especially Saturday night into Sunday morning.

Significant river flooding is likely on the Ohio River in Pittsburgh, impacting travel routes like the Tenth Street Bypass early next week.

Stay updated on the forecast and heed any warnings issued. Avoid flooded areas.

Source 1: Weekend Impact Days for Western PA - WTAE target="_blank"

Source 2: Pittsburgh Post-Gazette (General weather reporting corroborated details)