NWS Pittsburgh PAFF.W 0147September 13, 2026
Flash Flood Warning: Mercer, PA
The National Weather Service office in Pittsburgh issued a flash flood warning for Mercer in Pennsylvania, which was in force until 8:30 p.m. local time on September 13. It was the 147th 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
In force for 3.1 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Pittsburgh PA
- Area
- Mercer
- State
- Pennsylvania
- Level
- Warning
- Issued
- 5:26 p.m. EDT, September 13, 2026
- Expires
- 8:30 p.m. EDT, September 13, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KPBZ FF.W 0147
- 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... West Central Mercer County in northwestern Pennsylvania... * Until 830 PM EDT. * At 526 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. 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... Hermitage, Sharon, Sharpsville, Farrell and Wheatland.
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.