New York Severe Coastal Flood Warning | Effective 09/25/2026 13:44

* WHAT...1 to 2 ft, locally 2 1/2 ft, of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. The highest water levels are likely with the Saturday midday and possibly Sunday midday high tides. * WHERE...Northeast Suffolk County. * WHEN...During the times of high tide until 6 PM EDT Sunday. * COASTAL IMPACTS...Minor to locally moderate flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect 1 to 2 ft, locally 2 1/2 ft, of inundation above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding. * SHOREFRONT/BEACH IMPACTS...Breaking waves of 4 to 8 ft along with elevated water levels will result in areas of dune erosion and beach flooding. Splashover over seawalls and overwashes where dune structures are compromised may locally exacerbate flooding of roadways and vulnerable structures behind protective dunes. * ADDITIONAL DETAILS...Another round of minor to moderate coastal flooding is possible for the Sunday morning high tide cycle.