Flash Flood Warning Issued for Philadelphia Area Until 5 PM EDT

Source: NOAA · Philadelphia Metropolitan Area

This alert is no longer in effect.

NOAA issued it on August 5, 2026, 2 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS Mount Holly has issued a Flash Flood Warning for portions of southern New Jersey and southeastern Pennsylvania effective until 5:00 PM EDT on August 5.

Read this weather record in 30 seconds

Record type
Flash Flood Warning
Affected area
Philadelphia Metropolitan Area
Issued
August 5, 2026
Issuing authority
NWS Mount Holly NJ

Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.

Record status: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in Philadelphia Metropolitan Area.

Alert Details

Flash Flood Warning issued by NWS Mount Holly NJ. Effective from August 5 at 12:58 PM EDT until August 5 at 5:00 PM EDT. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

Northwestern Burlington County, Northwestern Camden County, and Northeastern Gloucester County in southern New Jersey. South Central Bucks County, Southeastern Montgomery County, and Central Philadelphia County in southeastern Pennsylvania. Specific locations include Philadelphia, Camden, Gloucester City, Cherry Hill, Bensalem, Mount Laurel, Willingboro, Lumberton, Bellmawr, Burlington, Bristol, and Mount Holly.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

Expected Conditions

Doppler radar indicated heavy rainfall moving toward the area with expected rainfall rates of 0.5 to 1 inch in 30 minutes. Additional rainfall amounts up to 2 inches are possible. Flash flooding is ongoing or expected to begin shortly.

Timeline

Alert effective August 5, 2026 at 12:58 PM EDT and expires August 5, 2026 at 5:00 PM EDT.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Mount Holly has issued a Flash Flood Warning for portions of southern New Jersey and southeastern Pennsylvania effective until 5:00 PM EDT on August 5.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Philadelphia Metropolitan Area. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.