Flash Flood Warning for Eastern PA and Northwestern NJ
This alert is no longer in effect.
NOAA issued it on August 3, 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 multiple counties in eastern Pennsylvania and northwestern New Jersey until 3:30 AM EDT August 3.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Eastern Pennsylvania and Northwestern New Jersey
- Issued
- August 3, 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 Eastern Pennsylvania and Northwestern New Jersey.
Alert Details
Flash Flood Warning issued by NWS Mount Holly NJ. Effective from 2026-08-02T23:20:00-04:00 until 2026-08-03T03:30:00-04:00. Severity: Severe. Urgency: Immediate. Certainty: Likely.
Affected Areas
Warren County in northwestern New Jersey; Berks, Bucks, Lehigh, Montgomery, and Northampton counties in eastern Pennsylvania. Specific areas include Southwestern Warren County, East Central Berks County, Eastern Lehigh County, Northwestern Bucks County, and Northwestern Montgomery County. Locations that may experience flash flooding: Allentown, Easton, Bethlehem, Forks, Emmaus, Northampton, Quakertown, Wilson, Hellertown, Nazareth, East Greenville, and Wind Gap. Highways: Northeast Extension between mile markers 32 and 60; Interstate 78 in Pennsylvania between mile markers 54 and 76.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Thunderstorms producing heavy rain. Between 0.5 and 1.5 inches of rain have fallen. Rainfall rate of 1 to 2 inches in 1 hour expected. Additional rainfall amounts of 1 to 2 inches possible. Hazard: Flash flooding caused by thunderstorms.
Timeline
Alert in effect from August 2 at 11:20 PM EDT until August 3 at 3:30 AM EDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →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.
Similar body length
Nearest notices by article body length (1,277 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 3, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.