Severe · Flash Flood WarningThis alert has expired. It is kept for reference.
Flash Flood Warning issued August 30 at 11:24PM EDT until August 31
Affecting Chester, PA
In effect until: Aug 31, 2026, 6:00 AM
Chester, PA
Likely impact in Chester, PA; effects through 6:00 AM.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Read the original bulletin (official text)
At 1124 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms produced heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... West Chester, Coatesville, Westtown, Downingtown, Kennett Square, Parkesburg, Marshallton, West Goshen, Atglen, South Coatesville, Modena and Thorndale.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™