2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
A slow moving storm from the Ohio Valley brought 2 to 4 inches of rain on April 2nd and 3rd. Before this storm, the rivers had high flows due to a previous rainstorm March 28th and snowmelt. By the time the river fell below flood stage most of the snow had melted.
Read the full account →Several days of heavy rain throughout the Delaware and Brandywine Basins culminated with flooding along some of the creeks in Delaware County.
Read the full account →A weak cold front moved southeast across eastern Ohio and western Pennsylvania the afternoon and evening of the 28th. While some wind damage was reported, more significant flash flooding occurred over portions of Allegheny and Fayette counties in Pennsylvania, with the…
Read the full account →A weak cold front moved southeast across eastern Ohio and western Pennsylvania the afternoon and evening of the 28th. While some wind damage was reported, more significant flash flooding occurred over portions of Allegheny and Fayette counties in Pennsylvania, with the…
Read the full account →A weak cold front moved southeast across eastern Ohio and western Pennsylvania the afternoon and evening of the 28th. While some wind damage was reported, more significant flash flooding occurred over portions of Allegheny and Fayette counties in Pennsylvania, with the…
Read the full account →A weak cold front moved southeast across eastern Ohio and western Pennsylvania the afternoon and evening of the 28th. While some wind damage was reported, more significant flash flooding occurred over portions of Allegheny and Fayette counties in Pennsylvania, with the…
Read the full account →Severe Thunderstorms developed as a cold front moved east under deepening low pressure moving into the Great Lakes the afternoon and evening of the 16th.
Read the full account →Severe Thunderstorms developed as a cold front moved east under deepening low pressure moving into the Great Lakes the afternoon and evening of the 16th.
Read the full account →Severe Thunderstorms developed as a cold front moved east under deepening low pressure moving into the Great Lakes the afternoon and evening of the 16th.
Read the full account →Severe Thunderstorms developed as a cold front moved east under deepening low pressure moving into the Great Lakes the afternoon and evening of the 16th.
Read the full account →Severe Thunderstorms developed as a cold front moved east under deepening low pressure moving into the Great Lakes the afternoon and evening of the 16th.
Read the full account →Heavy rainfall from the remnants of Tropical Storm Lee produced widespread flooding, flash flooding and river flooding mainly near and to the east of the Susquehanna Valley from September 4-10.
Read the full account →A cold front dropped across Pennsylvania during the afternoon hours of October 4th. A line of thunderstorms accompanied the front, dropping 1.0 to 1.5 inches of rain across urban portions of Allegheny and Westmoreland Counties in a short period of time.
Read the full account →A cold front dropped across Pennsylvania during the afternoon hours of October 4th. A line of thunderstorms accompanied the front, dropping 1.0 to 1.5 inches of rain across urban portions of Allegheny and Westmoreland Counties in a short period of time.
Read the full account →A cold front dropped across Pennsylvania during the afternoon hours of October 4th. A line of thunderstorms accompanied the front, dropping 1.0 to 1.5 inches of rain across urban portions of Allegheny and Westmoreland Counties in a short period of time.
Read the full account →Deep moisture from the Atlantic Ocean was fed into Northeast Pennsylvania by low pressure near New York City. This led to areas of moderate to heavy rainfall totaling between 3 to 5 inches of rain with locally higher amounts.
Read the full account →On the Monongahela River near record flooding occurred at all Pennsylvania forecast points, except where record flooding occurred at Lock 2 Braddock. The crest at Lock 2 actually exceeded the crest during the flood of November 1985 by almost a foot.
Read the full account →Heavy rainfall from the remnants of Tropical Storm Lee produced widespread flooding, flash flooding and river flooding mainly near and to the east of the Susquehanna Valley from September 4-10.
Read the full account →Unusually strong upper low for July dropped from the Great Lakes into western PA. A trowal/deformation zone set up over most of the area outside of southeast Ohio, producing torrential rainfall.
Read the full account →Unusually strong upper low for July dropped from the Great Lakes into western PA. A trowal/deformation zone set up over most of the area outside of southeast Ohio, producing torrential rainfall.
Read the full account →Unseasonably cool air associated with a strong upper level low over the Great Lakes region combined with warm Lake Erie waters to produce persistent, intense lake-enhanced rainfall which trained repeatedly over northern Erie County, Pennsylvania during the early morning hours of…
Read the full account →Heavy rain and runoff from snowmelt caused widespread flooding throughout Northwest Pennsylvania during the first half of January. January 2005 was among the wettest January's ever. At Erie, 5.34 inches of precipitation was recorded making it the 4th wettest January ever.
Read the full account →Warm and humid air was in place across the region as a slow moving frontal system drifted into Northeast Pennsylvania. An upper level disturbance passed over the frontal boundary during the afternoon, triggering numerous torrential rain producing thunderstorms.
Read the full account →Thunderstorms that formed and continued to reform along a warm frontal boundary produced torrential downpours in the Lehigh Valley shortly after Midnight EDT on the 5th.
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