NWS Upton NYCF.W 0002September 25, 2026
Coastal Flood Warning: Southeast Suffolk, NY
The National Weather Service office in Upton issued a coastal flood warning for Southeast Suffolk in New York, which was in force until 6:00 p.m. local time on September 27. It was the 2nd coastal flood warning the NWS office in Upton issued in 2026. New York had 1 coastal flood warning in September 2026, against 0 in an average September of 2008-2025 (New York's coastal flood warnings by year).
ExpiredWarning
In force for 2 days; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Upton NY
- Area
- Southeast Suffolk
- State
- New York
- Level
- Warning
- Issued
- 4:44 p.m. EDT, September 25, 2026
- In force from
- 6:00 p.m. EDT, September 25, 2026
- Expires
- 6:00 p.m. EDT, September 27, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KOKX CF.W 0002
- 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
* WHAT...For the High Surf Advisory, large breaking waves of 6 to 10 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Warning, 1 1/2 to 2 1/2 ft, locally 3 ft, of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. The highest water levels are likely with the Saturday morning and possibly Sunday morning high tides. * WHERE...Southeast Suffolk County. * WHEN...For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. For the Coastal Flood Warning, During the times of high tide until 6 PM EDT Sunday. * COASTAL FLOOD IMPACTS...Widespread moderate to locally major flooding of vulnerable areas near the waterfront and shoreline. The threat for major flooding is mainly for the north shore of the south fork and north shore of Fire Island due to additive wave action potentially exacerbating flooding. Expect 1 1/2 to 2 1/2 ft, locally 3 feet of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT/BEACH IMPACTS...Breaking waves of 6 to 10 ft along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS....Another round of moderate to locally major coastal flooding is possible for the Sunday morning high tide cycle.
What the agency told people to do
Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
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.