NWS Upton NYFF.W 0058September 13, 2026
Flash Flood Warning: Bergen and Rockland, NJ and NY
The National Weather Service office in Upton issued a flash flood warning for Bergen and Rockland in New Jersey, New York, which was in force until 11:15 a.m. local time on September 13. It was the 58th flash flood warning the NWS office in Upton issued in 2026. New Jersey had 11 flash flood warnings in September 2026, against 5 in an average September of 2008-2025 (New Jersey's flash flood warnings by year).
ExpiredWarning
In force for 2.9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Upton NY
- Area
- Bergen and Rockland
- State
- New Jersey
- Level
- Warning
- Issued
- 8:21 a.m. EDT, September 13, 2026
- Expires
- 11:15 a.m. EDT, September 13, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KOKX FF.W 0058
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWOKX The National Weather Service in Upton has issued a * Flash Flood Warning for... Northeastern Bergen County in northeastern New Jersey... Rockland County in southeastern New York... * Until 1115 AM EDT. * At 821 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Ridgewood, Tappan, Pearl River, Oradell, Norwood, Orangeburg, Dumont, Glen Rock, Westwood, Hillsdale, River Vale, Washington Township, Park Ridge, Cresskill, Closter, Chestnut Ridge, Montvale, Emerson, Old Tappan and Woodcliff Lake.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.