Receive alerts from your local agencies
...or text your ZIP CODE to 888777 for mobile alerts

Full Notification

Princeton NJ Police Department
Thursday August 20th, 2026 :: 01:36 p.m. EDT

Alert

Flood Watch remains in effect for our area through late tonight. Please drive with caution and follow all road closure signs.

FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT

WHAT...Flash flooding caused by excessive rainfall continues to be possible.
WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Atlantic, Camden, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery.
WHEN...Through late tonight.
IMPACTS...Flooding may occur in poor drainage and urban areas. Creeks and streams may rise out of their banks. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
ADDITIONAL DETAILS... - Showers and a thundertorms are expected through this evening. Rainfall rates of 1 to 3 inches per hour are possible in stronger storms. Total rainfall amounts of 1 to 2 inches are expected with some areas experiencing 3 to 5 inches of rainfall which could cause flash flooding.
PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Instructions:

Flood Watch remains in effect for our area through late tonight. Please drive with caution and follow all road closure signs.

Address/Location
Princeton NJ Police Department
1 Valley Rd
Princeton, NJ 08542

Contact
Emergency: 9-1-1
Non-emergencies: 609-921-2100

TEXT-A-TIP -  Text TIP PRINCETON followed by your message, to 888777

Submit an anonymous web tip

Alert Details

Severity:
Severe - Significant threat to life or property
Urgency:
Future - Responsive action SHOULD be taken in the near future
Certainty:
Possible (p <= ~50%)
Category:
Meteorological (inc. flood)
Event:
Flood Watch

Navigate & Discover