FloodZoneMap.org

Pennsylvania Flood Stories

2,274 first-hand accounts of flood events in Pennsylvania, ranked by impact. Each is a NOAA-written narrative of the moment.

Flash Flood

Washington, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Washington, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Washington, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Allegheny, PA · Jun 10, 2018

A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.

Read the full account →
Flash Flood

Delaware, PA · Apr 16, 2018

A strong backdoor cold front moved from northeast to southwest across the area late Saturday afternoon April 15th into Sunday morning April 16th.

Read the full account →
Flash Flood

Philadelphia, PA · Apr 16, 2018

A strong backdoor cold front moved from northeast to southwest across the area late Saturday afternoon April 15th into Sunday morning April 16th.

Read the full account →
Flash Flood

Philadelphia, PA · Apr 16, 2018

A strong backdoor cold front moved from northeast to southwest across the area late Saturday afternoon April 15th into Sunday morning April 16th.

Read the full account →
Flash Flood

Montgomery, PA · Apr 16, 2018

A strong backdoor cold front moved from northeast to southwest across the area late Saturday afternoon April 15th into Sunday morning April 16th.

Read the full account →
Flash Flood

Allegheny, PA · Aug 10, 2018

Showers and thunderstorms formed along a nearly stationary boundary that crept southeastward from the Great Lakes. Precipitable water values of around 1.6 inches and weak steering flow along the boundary led to a few areas of training thunderstorms.

Read the full account →
Flash Flood

Allegheny, PA · Aug 10, 2018

Showers and thunderstorms formed along a nearly stationary boundary that crept southeastward from the Great Lakes. Precipitable water values of around 1.6 inches and weak steering flow along the boundary led to a few areas of training thunderstorms.

Read the full account →
Flash Flood

Allegheny, PA · Aug 10, 2018

Showers and thunderstorms formed along a nearly stationary boundary that crept southeastward from the Great Lakes. Precipitable water values of around 1.6 inches and weak steering flow along the boundary led to a few areas of training thunderstorms.

Read the full account →
Flash Flood

Allegheny, PA · Aug 10, 2018

Showers and thunderstorms formed along a nearly stationary boundary that crept southeastward from the Great Lakes. Precipitable water values of around 1.6 inches and weak steering flow along the boundary led to a few areas of training thunderstorms.

Read the full account →
Flash Flood

Allegheny, PA · Aug 10, 2018

Showers and thunderstorms formed along a nearly stationary boundary that crept southeastward from the Great Lakes. Precipitable water values of around 1.6 inches and weak steering flow along the boundary led to a few areas of training thunderstorms.

Read the full account →
Flash Flood

Allegheny, PA · Oct 2, 2018

A low amplitude, positively-tilted shortwave trough crossed the eastern Great Lakes/upper Ohio Valley region on October 2nd. Showers and thunderstorms developed in a moist, unstable air mass across eastern Ohio, northwestern Pennsylvania, and northern West Virginia.

Read the full account →
Flood

Westmoreland, PA · Jan 12, 2018

Low pressure tracking up the Appalachians combined with a strong arctic cold front to produce a significant rain and snow producing storm for the region.

Read the full account →
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