page_title: June 2012 North American derecho
section_title: Pennsylvania
hierarchical_section_title: June 2012 North American derecho / Impacts / Pennsylvania
caption_attribution_description: English: June 2012 North American derecho: snapped tree in Oakton, Virginia
context_page_description: The June 2012 Mid-Atlantic and Midwest derecho was one of the deadliest and most destructive fast-moving severe thunderstorm complexes in North American history. The progressive derecho tracked across a large section of the Midwestern United States and across the central Appalachians into the mid-Atlantic states on the afternoon and evening of June 29, 2012, and into the early morning of June 30, 2012. It resulted in a total of 22 deaths, millions of power outages across the entire affected region, and a damage total of US$2.9 billion which exceeded that of all but the top 25 Atlantic tropical cyclones. The storm prompted the issuance of four separate severe thunderstorm watches by the Storm Prediction Center. A second storm in the late afternoon caused another watch to be issued across Iowa and Illinois.
context_section_description: Across Pennsylvania, 32,500 customers lost power. Storm debris delayed trains at 30th Street Station in Philadelphia.
caption: Downed tree in Oakton, Virginia
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