Active Weather Alerts
Coastal Flood Advisory
Issued: 12:57 AM Sep. 28, 2026 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT MONDAY... * WHAT...One to one and a half feet, locally 2 feet, of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...Until 2 PM EDT Monday. * IMPACTS...Widespread minor to locally moderate flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect one to one and a half feet, locally 2 feet, of inundation above ground level. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding. Scattered areas of dune erosion are possible through early Monday along the ocean beaches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. 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. && Time of high total tides are approximate to the nearest hour. GREAT SOUTH BAY AT LINDENHURST NY MLLW CATEGORIES - MINOR 3.1 FT, MODERATE 3.6 FT, MAJOR 4.1 FT MHHW CATEGORIES - MINOR 1.5 FT, MODERATE 2.0 FT, MAJOR 2.5 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 27/11 PM 3.2/ 3.7 1.6/ 2.0 1.8/ 2.2 1 MINOR 28/12 PM 3.2/ 3.7 1.7/ 2.2 1.8/ 2.2 1 MINOR 28/11 PM 2.6/ 3.1 1.0/ 1.5 1.3/ 1.8 1 NONE 29/11 AM 2.5/ 3.0 0.9/ 1.4 1.1/ 1.6 1 NONE 30/12 AM 2.1/ 2.6 0.5/ 1.0 0.9/ 1.4 1 NONE GREAT SOUTH BAY AT WEST SAYVILLE NY MLLW CATEGORIES - MINOR 3.1 FT, MODERATE 3.6 FT, MAJOR 4.1 FT MHHW CATEGORIES - MINOR 1.7 FT, MODERATE 2.2 FT, MAJOR 2.7 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 28/12 AM 2.7/ 3.2 1.4/ 1.9 1.7/ 2.2 1 NONE 28/12 PM 2.7/ 3.2 1.4/ 1.9 1.6/ 2.0 1 NONE 29/12 AM 2.2/ 2.7 0.8/ 1.3 1.2/ 1.7 1 NONE 29/01 PM 2.2/ 2.7 0.8/ 1.3 0.9/ 1.4 1 NONE 30/01 AM 1.7/ 2.2 0.2/ 0.8 0.7/ 1.1 1 NONE GREAT SOUTH BAY AT WATCH HILL/FIRE ISLAND NY MLLW CATEGORIES - MINOR 3.2 FT, MODERATE 3.7 FT, MAJOR 4.2 FT MHHW CATEGORIES - MINOR 1.7 FT, MODERATE 2.2 FT, MAJOR 2.7 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 28/12 AM 2.8/ 3.4 1.4/ 1.9 1.8/ 2.2 1 NONE 28/01 PM 2.8/ 3.4 1.4/ 1.9 1.6/ 2.0 1 NONE 29/12 AM 1.7/ 2.2 0.2/ 0.7 0.7/ 1.1 1 NONE 29/01 PM 1.7/ 2.2 0.2/ 0.7 0.4/ 0.9 1 NONE 30/01 AM 1.3/ 1.8 -0.2/ 0.2 0.2/ 0.8 1 NONE MORICHES BAY AT EAST MORICHES NY MLLW CATEGORIES - MINOR 4.3 FT, MODERATE 5.3 FT, MAJOR 6.3 FT MHHW CATEGORIES - MINOR 1.9 FT, MODERATE 2.9 FT, MAJOR 3.9 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 27/10 PM 3.7/ 4.2 1.4/ 1.9 1.5/ 2.0 1 NONE 28/10 AM 3.9/ 4.4 1.5/ 2.0 1.2/ 1.7 1 NONE 28/11 PM 2.7/ 3.2 0.2/ 0.8 0.4/ 0.9 1 NONE 29/11 AM 2.8/ 3.4 0.5/ 1.0 0.1/ 0.6 1 NONE 30/12 AM 2.2/ 2.7 -0.2/ 0.2 0.0/ 0.5 1 NONE EAST ROCKAWAY INLET AT ATLANTIC BEACH NY MLLW CATEGORIES - MINOR 6.2 FT, MODERATE 7.2 FT, MAJOR 8.2 FT MHHW CATEGORIES - MINOR 1.3 FT, MODERATE 2.3 FT, MAJOR 3.3 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 27/09 PM 6.2/ 6.8 1.4/ 1.9 1.4/ 1.9 3-4 MINOR 28/09 AM 6.6/ 7.1 1.7/ 2.2 1.1/ 1.6 2 MINOR 28/10 PM 5.4/ 5.9 0.5/ 1.0 0.6/ 1.1 2 NONE 29/10 AM 5.7/ 6.2 0.9/ 1.4 0.2/ 0.8 2 NONE 29/10 PM 4.7/ 5.2 -0.2/ 0.3 0.2/ 0.7 2 NONE 30/11 AM 5.6/ 6.1 0.7/ 1.1 0.1/ 0.6 2 NONE REYNOLDS CHANNEL AT POINT LOOKOUT NY MLLW CATEGORIES - MINOR 6.0 FT, MODERATE 7.0 FT, MAJOR 8.0 FT MHHW CATEGORIES - MINOR 1.3 FT, MODERATE 2.3 FT, MAJOR 3.3 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 27/09 PM 6.1/ 6.6 1.4/ 1.9 1.5/ 2.0 1-2 MINOR 28/09 AM 6.2/ 6.8 1.6/ 2.0 1.1/ 1.6 1 MINOR 28/10 PM 5.2/ 5.7 0.5/ 1.0 0.7/ 1.1 1 NONE 29/10 AM 5.7/ 6.2 1.0/ 1.5 0.4/ 0.9 1 NONE 29/11 PM 4.6/ 5.1 -0.2/ 0.3 0.2/ 0.8 1 NONE 30/11 AM 5.4/ 5.9 0.7/ 1.1 0.2/ 0.7 1 NONE HUDSON BAY AT FREEPORT NY MLLW CATEGORIES - MINOR 6.0 FT, MODERATE 6.5 FT, MAJOR 7.2 FT MHHW CATEGORIES - MINOR 1.3 FT, MODERATE 1.8 FT, MAJOR 2.5 FT TOTAL TOTAL DEPARTURE DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD FT MLLW FT MHHW FT FT IMPACT -------- --------- --------- --------- ------- -------- 27/09 PM 5.9/ 6.4 1.2/ 1.7 2.6/ 3.1 1 MINOR 28/10 AM 6.1/ 6.6 1.4/ 1.9 2.2/ 2.7 1 MINOR 28/10 PM 5.2/ 5.7 0.6/ 1.1 2.0/ 2.5 1 NONE 29/10 AM 5.5/ 6.0 0.8/ 1.3 2.0/ 2.5 1 NONE 29/11 PM 4.7/ 5.2 0.1/ 0.6 1.6/ 2.0 1 NONE 30/11 AM 5.4/ 5.9 0.7/ 1.1 1.7/ 2.2 1 NONE &&
Small Craft Advisory
Issued: 6:18 PM Sep. 27, 2026 – National Weather Service
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT MONDAY... * WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt. Seas 3 to 5 feet on the Sound. * WHERE...Long Island Sound, New York Harbor, Peconic and Gardiners Bays, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN...Until 4 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
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