2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
Scattered showers and thunderstorms were able to bloom during the afternoon hours as a shortwave trough crossed the region while convective temperatures were reached.
Read the full account →Scattered showers and thunderstorms were able to bloom during the afternoon hours as a shortwave trough crossed the region while convective temperatures were reached.
Read the full account →Scattered showers and thunderstorms were able to bloom during the afternoon hours as a shortwave trough crossed the region while convective temperatures were reached.
Read the full account →Scattered showers and thunderstorms were able to bloom during the afternoon hours as a shortwave trough crossed the region while convective temperatures were reached.
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 →A trough was in place across the eastern part of the country on August 2nd. A weak shortwave moving through that upper system induced an inverted surface trough that slid slowly westward across southwest Pennsylvania through the day.
Read the full account →A trough was in place across the eastern part of the country on August 2nd. A weak shortwave moving through that upper system induced an inverted surface trough that slid slowly westward across southwest Pennsylvania through the day.
Read the full account →A trough was in place across the eastern part of the country on August 2nd. A weak shortwave moving through that upper system induced an inverted surface trough that slid slowly westward across southwest Pennsylvania through the day.
Read the full account →A trough was in place across the eastern part of the country on August 2nd. A weak shortwave moving through that upper system induced an inverted surface trough that slid slowly westward across southwest Pennsylvania through the day.
Read the full account →A trough was in place across the eastern part of the country on August 2nd. A weak shortwave moving through that upper system induced an inverted surface trough that slid slowly westward across southwest Pennsylvania through the day.
Read the full account →Another in a series of weak mid-level shortwaves moved across the upper Ohio Valley during the afternoon hours. The first storms formed near Interstate 80 around noon, with a broken line of convection then forming towards the southwest during the afternoon hours.||Instability…
Read the full account →Another in a series of weak mid-level shortwaves moved across the upper Ohio Valley during the afternoon hours. The first storms formed near Interstate 80 around noon, with a broken line of convection then forming towards the southwest during the afternoon hours.||Instability…
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Mid-level westerly flow of 45-70kts streamed over the Great Lakes/Upper Ohio Valley. A shortwave trough embedded within this zonal flow entered the region and moved eastward throughout the day, helping to provide forcing for ascent and strengthening of deep layer shear.
Read the full account →Low pressure tracked across Ohio and Pennsylvania on February 6th, pushing a warm front northward which stalled over Pennsylvania. A second low pressure center tracked along this boundary, strengthening as it tracked into Michigan and Ontario.
Read the full account →Low pressure tracked across Ohio and Pennsylvania on February 6th, pushing a warm front northward which stalled over Pennsylvania. A second low pressure center tracked along this boundary, strengthening as it tracked into Michigan and Ontario.
Read the full account →Low pressure tracked across Ohio and Pennsylvania on February 6th, pushing a warm front northward which stalled over Pennsylvania. A second low pressure center tracked along this boundary, strengthening as it tracked into Michigan and Ontario.
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