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NWS Pittsburgh PAFF.W 0152September 20, 2026

Flash Flood Warning: Washington County, PA

The National Weather Service office in Pittsburgh issued a flash flood warning for Washington County in Pennsylvania, which was in force until 1:30 p.m. local time on September 20. It was the 152nd flash flood warning the NWS office in Pittsburgh issued in 2026. Pennsylvania had 43 flash flood warnings in September 2026, against 12 in an average September of 2008-2025 (Pennsylvania's flash flood warnings by year).

ExpiredWarning

Issued10:37 a.m. EDT, September 20, 2026
In force10:37 a.m. EDT, September 20, 2026
Expired1:30 p.m. EDT, September 20, 2026

In force for 2.9 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Pittsburgh PA
Area
Washington County
State
Pennsylvania
Level
Warning
Issued
10:37 a.m. EDT, September 20, 2026
Expires
1:30 p.m. EDT, September 20, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KPBZ FF.W 0152
Official source
National Weather Service: the notice at its source

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

FFWPBZ The National Weather Service in Pittsburgh has issued a * Flash Flood Warning for... Central Washington County in southwestern Pennsylvania... * Until 130 PM EDT. * At 1037 AM EDT, emergency management reported thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Emergency management reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Washington, Canonsburg, Avella, Wolfdale, McGovern, Bentleyville, East Washington, New Eagle, Baidland, Houston, Ellsworth, Claysville, Deemston, Eighty Four, Cokeburg, Hickory, Beallsville and West Alexander.

What the agency told people to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.