Flood Warning — Delaware County, Pennsylvania
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Current Status
🌊 Active: Flood Warning
Flood Warning issued August 3 at 8:38AM EDT until August 3 at 10:00AM EDT by NWS Mount Holly NJ
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Portions of New Jersey, including the following counties, Burlington, Camden, Gloucester, Mercer, Middlesex and Somerset and southeast Pennsylvania, including the following counties, Bucks, Delaware, Montgomery and Philadelphia. * WHEN...Until 1000 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 836 AM EDT, Doppler radar indicated slow moving thunderstorms with very heavy rainfall across portions of the warned area. Between 0.5 and 3.5 inches of rain have fallen. Several low lying locations have already seen flooding this morning before those flood waters receded. Additional heavy rainfall will cause ponding of water in low lying areas making some roads impassable. - Additional rainfall amounts of 1 to 2 inches are possible in the warned area. - Some locations that may experience flooding include... Philad
Effective August 3, 2026 at 8:38 AM ET · Expires August 3, 2026 at 10:00 AM ET
Event Details
Event Type
Flood Warning
Severity
severe
Issued By
NWS Mount Holly NJ
Expires
August 3, 2026 at 10:00 AM ET
Last Checked
just now
What To Do
📋 Official NWS Guidance
Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Also In Effect For
This same Flood Warning also covers:
Other Active Alerts in Pennsylvania
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Frequently Asked Questions
What does a Flood Warning mean for Delaware County, Pennsylvania?
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Is this Flood Warning currently active?
Yes — this alert is active as of our last check (just now). It's set to expire August 3, 2026 at 10:00 AM ET.
How do I get notified about Flood Warning alerts for Delaware County?
Download StormCast free on Google Play and set Delaware County, Pennsylvania as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flood Warning is also in effect for Camden County, Gloucester County, Mercer County, Middlesex County, Somerset County, Montgomery County, Philadelphia County, Bucks County, Burlington County.