2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.
A slow moving cold front combined with a strong upper level system produced scattered severe thunderstorms across southeast Ohio, western Pennsylvania, northern West Virginia, and Garrett county Maryland.
Read the full account →Three separate mesoscale convective systems moved across Southeast Ohio, Western Pennsylvania, Northern West Virginia, and Garrett county Maryland. Widespread wind damage, flash flooding, and an EF0 tornado occurred during the event.
Read the full account →Three separate mesoscale convective systems moved across Southeast Ohio, Western Pennsylvania, Northern West Virginia, and Garrett county Maryland. Widespread wind damage, flash flooding, and an EF0 tornado occurred during the event.
Read the full account →A strong low pressure system moved across the Upper Ohio Valley bringing heavy rain as well as a line of severe thunderstorms. Flooding of streams and creeks was widespread across eastern Ohio and western Pennsylvania.
Read the full account →A strong low pressure system moved across the Upper Ohio Valley bringing heavy rain as well as a line of severe thunderstorms. Flooding of streams and creeks was widespread across eastern Ohio and western Pennsylvania.
Read the full account →Multicluster thunderstorms developed under an unstable airmass with limted wind shear over OH and PA. While the primary threat was wind damage, weak shear and sufficient moisture gave way for the threat of slow moving storms with heavy downpours, enhancing the flash flood threat.
Read the full account →Strong thunderstorms passed over areas of western Pennsylvania that had already received several inches of rain over the past few days. These thunderstorms produced torrential rainfall of up to 3 inches in 90 minutes as they moved across the area, creating flash flooding…
Read the full account →Remnants of mesoscale convective systems over the Great Lakes advanced into the Ohio River Valley throughout the day on August 12th and helped to create severe storms.
Read the full account →Remnants of mesoscale convective systems over the Great Lakes advanced into the Ohio River Valley throughout the day on August 12th and helped to create severe storms.
Read the full account →Remnants of mesoscale convective systems over the Great Lakes advanced into the Ohio River Valley throughout the day on August 12th and helped to create severe storms.
Read the full account →Remnants of mesoscale convective systems over the Great Lakes advanced into the Ohio River Valley throughout the day on August 12th and helped to create severe storms.
Read the full account →An upper level disturbance produced showers and thunderstorms with heavy rainfall across western Pennsylvania and the northern West Virginia Panhandle. Flooding of roadways and areas of poor drainage was reported.
Read the full account →A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.
Read the full account →A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.
Read the full account →A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.
Read the full account →A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.
Read the full account →A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.
Read the full account →A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.
Read the full account →Scattered thunderstorms formed in an unstable air mass on the 28th. The storms took advantage of dry air aloft to create downburst conditions in a few cases, producing reports of wind damage in Allegheny, Lawrence, and Westmoreland Counties.
Read the full account →Scattered thunderstorms formed in an unstable air mass on the 28th. The storms took advantage of dry air aloft to create downburst conditions in a few cases, producing reports of wind damage in Allegheny, Lawrence, and Westmoreland Counties.
Read the full account →Scattered thunderstorms formed in an unstable air mass on the 28th. The storms took advantage of dry air aloft to create downburst conditions in a few cases, producing reports of wind damage in Allegheny, Lawrence, and Westmoreland Counties.
Read the full account →Scattered thunderstorms formed in an unstable air mass on the 28th. The storms took advantage of dry air aloft to create downburst conditions in a few cases, producing reports of wind damage in Allegheny, Lawrence, and Westmoreland Counties.
Read the full account →Scattered thunderstorms formed in an unstable air mass on the 28th. The storms took advantage of dry air aloft to create downburst conditions in a few cases, producing reports of wind damage in Allegheny, Lawrence, and Westmoreland Counties.
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.
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