Flash Flood Warning
2026-08-23T07:45:00-04:00

At 456 AM EDT, Thunderstorms produced heavy rain in the warned area, with flash flooding reported in Chester. Between 1 and 2 inches of rain have fallen. While the heavy rain has ended, flash flooding is occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. Some locations that may experience flash flooding include... Philadelphia, Wilmington, Chester, Yeadon, Carneys Point, Folcroft, Swarthmore, Penns Grove, Arden, Chester Township, Chelsea and Nether Providence Township. This includes the following highways... Interstate 476 in Pennsylvania between mile markers 0 and 7. Interstate 95 in Pennsylvania between mile markers 0 and 9. Interstate 95 in Delaware between mile markers 15 and 23.

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Flash Flood Warning
Until 2026-08-23T07:45:00-04:00 • National Weather Service
At 456 AM EDT, Thunderstorms produced heavy rain in the warned area, with flash flooding reported in Chester. Between 1 and 2 inches of rain have fallen. While the heavy rain has ended, flash flooding is occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. Some locations that may experience flash flooding include... Philadelphia, Wilmington, Chester, Yeadon, Carneys Point, Folcroft, Swarthmore, Penns Grove, Arden, Chester Township, Chelsea and Nether Providence Township. This includes the following highways... Interstate 476 in Pennsylvania between mile markers 0 and 7. Interstate 95 in Pennsylvania between mile markers 0 and 9. Interstate 95 in Delaware between mile markers 15 and 23.

RIDLEY CREEK AT MEDIA, PA

Realtime Data • Report • Conditions

14

Discharge (cfs)

3.4

Gauge Height (ft)

USGS 01476480

Streamflow discharge was last observed at 20 cfs, and a gauge height of 3.36 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 23 .

Weather today, Tomorrow,

The stream is fed by several tributaries, including Darby Creek and Plum Run, and is a major source of drinking water for the surrounding communities. There are no major dams along the creek, but seasonal trends show that the flow usually peaks during the spring and fall months due to increased rainfall. Interesting facts about the hydrology of the Ridley Creek include its historical importance as a transportation route for early settlers and the fact that it was once home to several mills powered by the water current. Overall, the Ridley Creek provides a valuable snapshot of the local watershed and serves as a valuable resource for understanding the complex dynamics of freshwater ecosystems.

August 23, 2026

Elevation	95.0 ft
Last Updated
Gage height, ft	3.36 ft
Stream water level elevation above NAVD 1988, in ft	103.36 ft
Streamflow, ft³/s	19.9 ft3/s
Percent of Normal	74%
Year Over Year Average	19 cfs
24hr Flow Prediction	cfs
Maximum Recorded	4,590 cfs
Geolocation	39.92, -75.40

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Ridley Creek At Media, Pa Realtime Data

RIDLEY CREEK AT MEDIA, PA

Realtime Data • Report • Conditions

14

Discharge (cfs)

3.4

Gauge Height (ft)

August 23, 2026

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Ridley Creek At Media, Pa Realtime Data

RIDLEY CREEK AT MEDIA, PA

Realtime Data • Report • Conditions

14

Discharge (cfs)

3.4

Gauge Height (ft)

August 23, 2026

Seasonal Comparison

Oceanic Nino Index

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