2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance…
Read the full account →Low pressure moved north along the Atlantic Seaboard spreading steady and heavy rain into northeastern Pennsylvania during the overnight hours. Rainfall amounts of 2 to 4 inches were observed along with a considerable amount of melting snow into area rivers and streams.
Read the full account →Low pressure moved north along the Atlantic Seaboard spreading steady and heavy rain into northeastern Pennsylvania during the overnight hours. Rainfall amounts of 2 to 4 inches were observed along with a considerable amount of melting snow into area rivers and streams.
Read the full account →A cold front supported scattered heavy rain-producing thunderstorms across Northeastern Pennsylvania. Multiple storms moved very slowly over the same townships of Lackawanna, Wayne and Pike counties.
Read the full account →Thunderstorms with torrential downpours caused widespread creek, basement and poor drainage flooding in Philadelphia. Doppler Radar storm total estimates reached between 3 and 4 inches in the northwestern part of the city centered around Roxborough and West Mount Airy.
Read the full account →A shortwave trough over the Great Lakes interacting with a quasi-stationary boundary over eastern Ohio and western PA spawned severe weather from mid afternoon through late evening.
Read the full account →Several days of heavy rain throughout the Schuylkill River Basin culminated with major flooding along the Schuylkill River from the 27th through the 29th.
Read the full account →Storms developed the afternoon of the 13th as a result of a passing shortwave to the south and a slow moving trough located north of the Great Lakes. Just like the previous day, despite the fact that effective shear was slightly weak, DCAPE was ranging between 900 to 1000 J/kg.
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.
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.
Read the full account →Slow-moving low pressure provided rounds of rain to southwest Pennsylvania on May 6th-7th. Widespread 48 hour rainfall totals of 1 to 3 inches were observed, with locally higher amounts. Low-level convergence and frontogenesis fueled the heavier rainfall rates.
Read the full account →Slow-moving low pressure provided rounds of rain to southwest Pennsylvania on May 6th-7th. Widespread 48 hour rainfall totals of 1 to 3 inches were observed, with locally higher amounts. Low-level convergence and frontogenesis fueled the heavier rainfall rates.
Read the full account →Low pressure moved northeast through the Great Lakes and St. Lawrence River valley, bringing a plume of deep moisture into Northeast Pennsylvania. Rain, with embedded bands of thunderstorms, developed ahead of the low pressure area during the day of 31 October.
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