Pennsylvania Severe Flood Warning | Effective 10/11/2026 16:06

Headline: 
Flood Warning issued October 11 at 7:06PM EDT until October 12 at 3:00AM EDT by NWS Mount Holly NJ
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
October 11, 2026 - 4:06pm
Expires: 
October 12, 2026 - 12:00am
Description: 
...The National Weather Service in Mount Holly has issued a Flood Warning for the following rivers in Pennsylvania... East Branch Brandywine Creek Below Downingtown affecting Chester County. For the Brandywine Creek...including Downingtown...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...East Branch Brandywine Creek below Downingtown. * WHEN...Until late tonight. * IMPACTS...At 8.0 feet, Dowlin Forge Road begins to flood. * ADDITIONAL DETAILS... - At 6:45 PM EDT Sunday the stage was 6.0 feet and rising. - Forecast...The river is expected to rise above flood stage late this evening to a crest of 7.3 feet just after midnight tonight. It will then fall below flood stage early tomorrow morning. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 7.2 feet on 03/01/2021. - http://www.weather.gov/safety/flood
Instruction: 
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. Additional information is available at www.weather.gov/phi. The next statement will be issued late tonight by 300 AM EDT.
Area Description: 
Chester, PA
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov