Flash Flood Warning for New Castle County DE and Southern NJ
If you are in immediate danger, call emergency services now.
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NWS Mount Holly NJ has issued a Flash Flood Warning for southwestern New Castle County in Delaware and central Cumberland and Salem counties in New Jersey until 8:45 AM EDT.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Northern Delaware and Southern New Jersey
- Issued
- August 17, 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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Flash Flood Warning issued by NWS Mount Holly NJ (NOAA). Effective from August 17, 2026 at 4:43 AM EDT until August 17, 2026 at 8:45 AM EDT. Severity: Severe. Urgency: Immediate. Certainty: Likely.
Affected Areas
Southwestern New Castle County in northern Delaware; Central Cumberland County in southern New Jersey; Salem County in southern New Jersey. Locations that may experience flash flooding include Vineland, Millville, Bridgeton, Middletown, Cumberland, Pennsville, Salem, Laurel Lake, Woodstown, Alloway, Quinton and Delaware City.
What You Should Do
Turn around, don't drown when encountering flooded roads. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. Report observed flooding to local emergency services or law enforcement.
Expected Conditions
Doppler radar indicated heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible.
Timeline
Alert effective August 17, 2026 at 4:43 AM EDT. Expires and ends August 17, 2026 at 8:45 AM EDT.
Original source: NOAA Official Notice ↗
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