Coastal Hazard Message National Weather Service New York NY 341 AM EDT Sun Apr 15 2018 ...Minor to locally Moderate Coastal Flooding with the Sunday Evening and Monday Morning high tidal cycles... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 1 PM EDT MONDAY... * LOCATIONS...Vulnerable locales along the Western Great South Bay, Jamaica Bay, New York and New Jersey Harbor and adjacent tidally affected rivers, as well as the Atlantic Ocean beachfront. * TIDAL DEPARTURE...1 1/2 to 2 ft above astronomical tides Sunday Evening, and 2 to 2 1/2 ft above Monday Morning. * TIMING...Minor coastal flooding with the Sunday Evening and Monday morning tidal cycles, except locally moderate along Western Great South Bay and Jamaica Bay. * COASTAL FLOOD IMPACTS...Shallow flooding is expected in the most vulnerable locations near the waterfront and shoreline. Expect around 1 to locally 2 feet 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. * SHORELINE IMPACTS...5 to 8 foot breaking waves along the Atlantic ocean beachfront will result in beach erosion and flooding with only minor damage possible to dune structures. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Coastal Flood Advisory indicates that onshore winds and tides will combine to generate flooding of low areas along the shore. && Time of high total tides are approximate to the nearest hour. Jamaica Bay NY MLLW CATEGORIES - MINOR 7.5 FT, MODERATE 8.2 FT, MAJOR 9.0 FT MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.3 FT, MAJOR 3.1 FT Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 14/08 PM 5.9/ 6.4 0.0/ 0.5 -0.3/ 0.2 2 None 15/09 AM 7.0/ 7.5 1.1/ 1.6 1.0/ 1.5 2-3 None 15/09 PM 7.8/ 8.4 2.0/ 2.5 1.4/ 1.9 2-3 Minor 16/09 AM 8.0/ 8.5 2.1/ 2.6 1.9/ 2.3 2 Moderate 16/10 PM 7.3/ 7.8 1.4/ 1.9 0.6/ 1.1 1 Minor 17/10 AM 6.2/ 6.8 0.4/ 0.9 0.2/ 0.8 0-1 None Rockaway Inlet NY MLLW CATEGORIES - MINOR 7.3 FT, MODERATE 8.3 FT, MAJOR 9.3 FT MHHW CATEGORIES - MINOR 1.8 FT, MODERATE 2.8 FT, MAJOR 3.8 FT Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 14/08 PM 5.7/ 6.2 0.1/ 0.6 0.0/ 0.5 3 None 15/08 AM 6.8/ 7.3 1.2/ 1.7 1.2/ 1.7 4 None 15/08 PM 7.8/ 8.3 2.2/ 2.7 1.8/ 2.2 5 Minor 16/09 AM 7.8/ 8.3 2.2/ 2.7 2.1/ 2.6 5-6 Minor 16/09 PM 7.0/ 7.5 1.4/ 1.9 0.8/ 1.3 3-4 None 17/09 AM 6.0/ 6.5 0.4/ 0.9 0.4/ 0.9 3 None East Rockaway NY MLLW CATEGORIES - MINOR 6.0 FT, MODERATE 7.0 FT, MAJOR 8.0 FT MHHW CATEGORIES - MINOR 1.0 FT, MODERATE 2.0 FT, MAJOR 3.0 FT Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 14/08 PM 4.9/ 5.4 -0.2/ 0.3 -0.2/ 0.3 0 None 15/08 AM 5.9/ 6.4 0.9/ 1.4 1.1/ 1.6 0 Minor 15/08 PM 6.9/ 7.4 1.9/ 2.3 1.7/ 2.2 0 Moderate 16/09 AM 6.8/ 7.3 1.8/ 2.2 2.0/ 2.5 3-4 Moderate 16/09 PM 6.2/ 6.8 1.3/ 1.8 0.9/ 1.4 3-4 Minor 17/09 AM 5.1/ 5.6 0.1/ 0.6 0.2/ 0.8 3 None
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