Active Weather Alerts
Coastal Flood Advisory
Issued: 6:41 PM Oct. 29, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY IN EFFECT FROM 2 PM TO 9 PM EDT THURSDAY... * WHAT...One to locally two feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...From 2 PM to 9 PM EDT Thursday. * IMPACTS...Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * ADDITIONAL DETAILS...Locally moderate coastal flooding is possible across the western Great South Bay during Thursday evening high tide. There is also potential of minor coastal flooding during high tide on Friday morning high tide. 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. && 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 -------- --------- --------- --------- ------- -------- 29/04 PM 2.8/ 3.4 1.3/ 1.8 1.7/ 2.2 1 NONE-MINOR 30/04 AM 2.6/ 3.1 1.0/ 1.5 1.7/ 2.2 1 NONE 30/05 PM 3.2/ 3.7 1.7/ 2.2 2.1/ 2.6 2 MIN-MOD 31/06 AM 3.0/ 3.5 1.4/ 1.9 1.9/ 2.3 1 MINOR 31/04 PM 1.6/ 2.0 0.0/ 0.5 0.7/ 1.1 2 NONE 01/06 AM 0.8/ 1.3 -0.9/-0.4 -0.3/ 0.2 0-2 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 -------- --------- --------- --------- ------- -------- 29/06 PM 2.7/ 3.2 1.3/ 1.8 1.8/ 2.2 1 NONE 30/05 AM 2.3/ 2.8 1.0/ 1.5 1.7/ 2.2 1 NONE 30/07 PM 3.0/ 3.5 1.6/ 2.0 2.1/ 2.6 2 MINOR 31/05 AM 2.7/ 3.2 1.4/ 1.9 2.2/ 2.7 1 NONE-MINOR 31/05 PM 1.8/ 2.2 0.4/ 0.9 1.1/ 1.6 2 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 -------- --------- --------- --------- ------- -------- 29/05 PM 2.7/ 3.2 1.3/ 1.8 1.6/ 2.0 1 NONE 30/05 AM 2.2/ 2.7 0.8/ 1.3 1.4/ 1.9 1 NONE 30/07 PM 3.0/ 3.5 1.5/ 2.0 1.8/ 2.2 1 MINOR 31/06 AM 2.8/ 3.4 1.4/ 1.9 2.0/ 2.5 1 NONE-MINOR 31/06 PM 2.0/ 2.5 0.5/ 1.0 0.9/ 1.4 1-2 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 -------- --------- --------- --------- ------- -------- 30/04 AM 3.1/ 3.6 0.7/ 1.1 1.3/ 1.8 1 NONE 30/04 PM 4.0/ 4.5 1.7/ 2.2 1.9/ 2.3 1 MINOR 31/03 AM 3.6/ 4.1 1.2/ 1.7 1.9/ 2.3 1 NONE 31/03 PM 2.1/ 2.6 -0.3/ 0.2 0.2/ 0.8 1 NONE &&
Small Craft Advisory
Issued: 6:12 PM Oct. 29, 2025 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT THURSDAY... ...GALE WARNING IN EFFECT FROM 6 AM THURSDAY TO 11 AM EDT FRIDAY... ...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... * WHAT...For the Small Craft Advisory, northeast winds 15 to 20 kt with gusts up to 25 kt. For the Gale Warning, southeast winds 20 to 30 kt with gusts up to 35 kt. For the Gale Watch, west winds 25 to 30 kt with gusts up to 40 kt. * WHERE...The Long Island south shore bays. * WHEN...For the Small Craft Advisory, until 6 AM EDT Thursday. For the Gale Warning, from 6 AM Thursday to 11 AM EDT Friday. For the Gale Watch, from Friday morning through late Friday night. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There may be a lull in gale conditions late Thursday night into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
Gale Watch
Issued: 6:12 PM Oct. 29, 2025 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT THURSDAY... ...GALE WARNING IN EFFECT FROM 6 AM THURSDAY TO 11 AM EDT FRIDAY... ...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... * WHAT...For the Small Craft Advisory, northeast winds 15 to 20 kt with gusts up to 25 kt. For the Gale Warning, southeast winds 20 to 30 kt with gusts up to 35 kt. For the Gale Watch, west winds 25 to 30 kt with gusts up to 40 kt. * WHERE...The Long Island south shore bays. * WHEN...For the Small Craft Advisory, until 6 AM EDT Thursday. For the Gale Warning, from 6 AM Thursday to 11 AM EDT Friday. For the Gale Watch, from Friday morning through late Friday night. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There may be a lull in gale conditions late Thursday night into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
Gale Warning
Issued: 6:12 PM Oct. 29, 2025 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT THURSDAY... ...GALE WARNING IN EFFECT FROM 6 AM THURSDAY TO 11 AM EDT FRIDAY... ...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... * WHAT...For the Small Craft Advisory, northeast winds 15 to 20 kt with gusts up to 25 kt. For the Gale Warning, southeast winds 20 to 30 kt with gusts up to 35 kt. For the Gale Watch, west winds 25 to 30 kt with gusts up to 40 kt. * WHERE...The Long Island south shore bays. * WHEN...For the Small Craft Advisory, until 6 AM EDT Thursday. For the Gale Warning, from 6 AM Thursday to 11 AM EDT Friday. For the Gale Watch, from Friday morning through late Friday night. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There may be a lull in gale conditions late Thursday night into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
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