2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
A passing shortwave trough and surface cold front brought scattered showers and thunderstorm on July 11th. Increasing shear, building instability, and mid-level dry resulted in a few strong storms across the area.
Read the full account →A series of thunderstorms, preceding a slowing cold front, during the afternoon of the 26th moved across the Poconos. They not only produced severe weather, but also flash flooding in several municipalities across western Carbon and southeast Monroe County.
Read the full account →The remnants of Sandy brought a variety of weather impacts to western Pennsylvania, eastern Ohio, northern West Virginia, and Garrett county Maryland as the storm made landfall and interacted with a cold front essentially right over the region.
Read the full account →The remnants of Sandy brought a variety of weather impacts to western Pennsylvania, eastern Ohio, northern West Virginia, and Garrett county Maryland as the storm made landfall and interacted with a cold front essentially right over the region.
Read the full account →The remnants of Sandy brought a variety of weather impacts to western Pennsylvania, eastern Ohio, northern West Virginia, and Garrett county Maryland as the storm made landfall and interacted with a cold front essentially right over the region.
Read the full account →The remnants of Sandy brought a variety of weather impacts to western Pennsylvania, eastern Ohio, northern West Virginia, and Garrett county Maryland as the storm made landfall and interacted with a cold front essentially right over the region.
Read the full account →Low pressure moving through central New York triggered numerous thunderstorms across the area. A frontal boundary became stationary over northeast Pennsylvania during the afternoon.
Read the full account →A warm front lifting across Northeast Pennsylvania and Central New York was the focus for several rounds of thunderstorm activity within a very warm and humid airmass.
Read the full account →The strong southeast wind up the Delaware Bay and River combined with the already high astronomical tides associated with the full moon and fresh water runoff from heavy rain to produce severe tidal flooding along the Delaware River and tidal sections of its tributaries during…
Read the full account →A shortwave traveling north over a broad ridge in the central U.S dragged a weak cold front over the Ohio Valley. This coldfront set off thunderstorms in the afternoon and evening hours on the 18th.
Read the full account →Hurricane Irene brought heavy rains and high winds from northeast Pennsylvania to the Catskill Mountains of New York from Saturday evening the 27th to Sunday afternoon the 28th.
Read the full account →Hurricane Irene brought heavy rains and high winds from northeast Pennsylvania to the Catskill Mountains of New York from Saturday evening the 27th to Sunday afternoon the 28th.
Read the full account →Heavy rainfall between 1 and 4 inches produced widespread areal flooding across all of central Pennsylvania. Cold season hydrologic conditions, including snow and ice melt contributed to enhanced run-off especially across the higher elevations and northern mountains.
Read the full account →Thunderstorms developed along a wavy frontal boundary across parts of eastern Ohio and much of southwest Pennsylvania the afternoon of the 14th into the early morning of the 15th.
Read the full account →A cold front slowly moved northeast through the area on the 11th. It brought 1.5 to 3 inches of rain to the county. 2.8 inches of rain fell in Tunkhannock. The rain and warmer weather also melted most of the snow that fell earlier in the week.
Read the full account →The combination of a very slow moving cold front and copious moisture from the remnants of Tropical Storm Tammy produced very heavy rain across Montgomery County from the early morning into the early evening of the 8th.
Read the full account →The combination of a very slow moving cold front and copious moisture from the remnants of Tropical Storm Tammy produced persistent very heavy rain across the Lehigh Valley from around Midnight EDT on the 8th into the afternoon of the 8th.
Read the full account →The combination of a very slow moving cold front and copious moisture from the remnants of Tropical Storm Tammy produced persistent very heavy rain across the Lehigh Valley from around Midnight EDT on the 8th into the afternoon of the 8th.
Read the full account →The combination of a stalled frontal boundary, extending from the Pennsylvania/Maryland border eastward across southern New Jersey, and a series of upper level disturbances resulted in numerous slow-moving thunderstorms from the afternoon of the 22nd through the early morning of…
Read the full account →The combination of a stalled frontal boundary, extending from the Pennsylvania/Maryland border eastward across southern New Jersey, and a series of upper level disturbances resulted in numerous slow-moving thunderstorms from the afternoon of the 22nd through the early morning of…
Read the full account →A week after a flash flood even in eastern Erie County, another heavy rain event came through with 3 to 5 inches of rain. The hardest hit areas were Summit, McKean, and Greene Townships in eastern Erie County.
Read the full account →Low pressure stationed across the Delmarva during the early morning hours of May 6, 2025 began to lift north and east during the afternoon hours, allowing portions of eastern Pennsylvania to have a brief period of residence time in the warm sector.
Read the full account →Diurnally driven showers and thunderstorms from the late evening hours of August 15, 2025 continued into the early morning hours of August 16th across eastern Pennsylvania.
Read the full account →Diurnally driven showers and thunderstorms from the late evening hours of August 15, 2025 continued into the early morning hours of August 16th across eastern Pennsylvania.
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