2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
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 →A slow moving frontal system brought moderate to heavy rains across much of central and north-central Pennsylvania during the overnight hours between October 20th and 21st.
Read the full account →Widespread heavy rains of between 2.0 and 3.0 inches fell across southwest Pennsylvania on February 18th. This rain fell onto ground that was already nearly saturated from heavy rainfall a few days earlier.
Read the full account →The remnants of Hurricane Ivan interacting with a slowly moving cold front caused widespread very heavy rain to fall during the first half of the day on the 18th in Northampton County.
Read the full account →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 →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 →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 →A slow moving storm from the Ohio Valley brought 2 to 3 inches of rain on April 2nd and 3rd. Before this storm, the Susquehanna River 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 →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 →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 Schuylkill River Basins culminated with flooding along the Schuylkill River from the 28th through the 29th.
Read the full account →Several days of heavy rain throughout the Delaware River Basin culminated with flash flooding of smaller streams during bursts of heavier rain during the night of the 27th and minor to moderate flooding along the Lehigh River.
Read the full account →An intense nor'easter brought heavy rain and flooding to Eastern Pennsylvania on the 15th and strong to high winds as well as some snow to the region on the 16th. Numerous streams and rivers flooded, but the flooding along the Delaware River was minimal.
Read the full account →A slow moving line of thunderstorms tied to a surface front dropped several inches of rain over northwest Pennsylvania the morning of the 27th.
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 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 →Storms producing heavy rainfall developed and crossed over an area that was already saturated from earlier rain on the evening of the 30th. The result was flooding over portions of Follansbee, West Virginia and in several locations around Washington and Allegheny counties in…
Read the full account →Storms producing heavy rainfall developed and crossed over an area that was already saturated from earlier rain on the evening of the 30th. The result was flooding over portions of Follansbee, West Virginia and in several locations around Washington and Allegheny counties in…
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 →While a shortwave trough moved south of the Ohio River Valley, isolated to scattered convection initiated in an area of low confluence north of Pittsburgh. As a result, slow moving heavy downpours ignited.
Read the full account →A shortwave trough crossed the Great Lakes on July 19th and then dove southward on the eastern flank of an upper ridge. The atmosphere was sufficiently unstable to allow isolated strong storms to develop.
Read the full account →A shield of moderate to heavy rainfall, associated with the remnants of tropical cyclone Ida, moved from the DelMarVa peninsula to New England.
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