Pittsburgh, Pa. – Thunderstorms packing heavy rain are set to roll into Pittsburgh by midday Wednesday, bringing a summer weather alert that could disrupt travel and raise flash flooding concerns—especially along Route 51 and other low-lying roadways. Residents across Allegheny County should brace for downpours and dangerous driving conditions, with the worst impacts likely between 2 p.m. and midnight Wednesday.
According to the National Weather Service, widespread showers and strong thunderstorms will develop Wednesday and continue into Thursday, favoring already saturated ground and areas with poor drainage. The risk of flash flooding remains highest Wednesday afternoon through Thursday night, with new rainfall amounts of up to a half-inch or more expected. The NWS urges everyone to avoid travel during periods of intense rain, keep mobile devices charged, and never drive through flooded roads.
Localized street flooding is possible in neighborhoods such as Carrick and West End, with hazardous conditions likely on Route 28 and the Parkway East during the evening commute. Power outages are possible where storms are most intense. Schools and daycare centers should prepare for potential early dismissals if heavy rain lingers into Thursday.
This weather marks one of the wettest stretches of July so far, echoing similar summer storm outbreaks in 2022. With the threat lingering into Thursday, emergency managers encourage residents to monitor alerts and review family safety plans.
Thunderstorm activity will gradually decrease by Friday, leading into a mostly dry, warm weekend. Another round of storms may return Monday, so stay tuned for updates.
Five Day Pittsburgh Weather Forecast:
- Wednesday: Showers and thunderstorms, high 88°F, heavy rain and flash flood risk.
- Thursday: Thunderstorms likely, high 89°F, chance of flooding in low-lying areas.
- Friday: Showers likely early, then clearing skies, high 83°F.
- Saturday: Partly sunny, slight chance of storms, high 86°F.
- Sunday: Scattered storms possible, muggy, high 88°F.
- Monday: Thunderstorms possible, high 85°F.
Warnings remain in effect through Thursday night. Expect updates if conditions worsen or new advisories are issued.
