2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
Widespread heavy thunderstorm rains, between 4 and 5 inches, caused numerous streams to go over their banks throughout the county. Roads were closed due to extensive flooding in Oil City and Franklin.
Read the full account →Tropical moisture continued to stream northward into northeast Pennsylvania ahead of a frontal system which slowly moved westward into the eastern Great Lakes by Tuesday morning 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 cold front dropped down across the region on the morning of July 21st. Convective initiation was aided by increased low-level moisture convergence along the front, as well as destabilization of the atmosphere due to daytime heating.
Read the full account →The combination of snowmelt from the previous week's two storms, unseasonably warm temperatures and an additional one to two inches of rain caused the flash flooding of almost every small stream and significant roadway flooding the afternoon and early evening hours on the 19th.
Read the full account →A warm and unstable environment combined with a stationary front across portions of the northern tier of Pennsylvania supported the development of scattered thunderstorms.
Read the full account →A warm and unstable environment combined with a stationary front across portions of the northern tier of Pennsylvania supported the development of scattered thunderstorms.
Read the full account →A line of thunderstorms formed over northern Ohio during the evening of July 26th and raced across southwest Pennsylvania to the north of Pittsburgh, supported by a shortwave trough.
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 →Post Tropical Cyclone Ida brought heavy rain to eastern Pennsylvania on September 1. Rainfall totals were as high as 5 to 10 inches. The heavy rain caused significant flash flooding, mainly in the southeastern part of the state. It resulted in widespread property damage.
Read the full account →Stationary boundary and near climatological max precpitable water led to another round of showers and thunderstorms with very heavy rainfall on the 15th.
Read the full account →Stationary boundary and near climatological max precpitable water led to another round of showers and thunderstorms with very heavy rainfall on the 15th.
Read the full account →Stationary boundary and near climatological max precpitable water led to another round of showers and thunderstorms with very heavy rainfall on the 15th.
Read the full account →Stationary boundary and near climatological max precpitable water led to another round of showers and thunderstorms with very heavy rainfall on the 15th.
Read the full account →Stationary boundary and near climatological max precpitable water led to another round of showers and thunderstorms with very heavy rainfall on the 15th.
Read the full account →Stationary boundary and near climatological max precpitable water led to another round of showers and thunderstorms with very heavy rainfall on the 15th.
Read the full account →Heavy rain with little, if any, lightning moved along a stationary front in a tropical environment. Moisture was plentiful, with precipitable water values of over 2 inches.
Read the full account →A frontal boundary, coupled with an extremely warm and humid environment, produced another day of slow moving, torrential downpour producing thunderstorms over Northeast Pennsylvania. Stripes of 1 to 3 inch rainfall occurred over several parts of the area.
Read the full account →A frontal boundary, coupled with an extremely warm and humid environment, produced another day of slow moving, torrential downpour producing thunderstorms over Northeast Pennsylvania. Stripes of 1 to 3 inch rainfall occurred over several parts of the area.
Read the full account →The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st.
Read the full account →The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st.
Read the full account →The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st.
Read the full account →An excessively warm and humid airmass resided over northeastern Pennsylvania for several days. A weak surface boundary provided the focus for slow moving, conglomerated thunderstorms which produced several hours of locally heavy downpours.
Read the full account →A shortwave moved through Northeast Pennsylvania, triggering scattered thunderstorms. Several storms produced torrential rainfall which led to areas of flash flooding. A narrow band of rainfall totaling 2 to 4 inches stretched across the northeast quarter of the county.
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