Coastal Flood Advisory

Full Alert Message

Coastal Hazard Message National Weather Service Mount Holly NJ 400 PM EDT Sat Apr 18 2026 ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 2 AM EDT SUNDAY... * WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, Inland Sussex and Delaware Beaches. In New Jersey, Cape May and Atlantic Coastal Cape May. * WHEN...From 8 PM this evening to 2 AM EDT Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge. && Time of high total tides are approximate to the nearest hour. Delaware Bay at Lewes 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 Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 18/10 PM 6.6 2.0 1.3 Minor 19/10 AM 4.9 0.2 1.0 None 19/11 PM 6.2 1.5 0.9 Minor 20/11 AM 4.2 -0.5 0.4 None 21/12 AM 5.8 1.2 0.6 None 21/01 PM 4.5 -0.2 0.8 None Great Egg Harbor Bay at Ocean City MLLW Categories - Minor 5.3 ft, Moderate 6.3 ft, Major 7.3 ft MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 3.3 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 18/10 PM 5.7 1.7 0.9 Minor 19/09 AM 4.2 0.2 0.8 None 19/10 PM 5.1 1.1 0.4 None 20/10 AM 3.4 -0.6 0.1 None 20/11 PM 4.7 0.7 0.1 None 21/12 PM 3.6 -0.4 0.2 None Cape May Harbor at Cape May MLLW Categories - Minor 6.2 ft, Moderate 7.2 ft, Major 8.2 ft MHHW Categories - Minor 1.1 ft, Moderate 2.1 ft, Major 3.1 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 18/10 PM 6.9 1.8 1.0 Minor 19/10 AM 5.2 0.1 0.7 None 19/10 PM 6.4 1.3 0.5 Minor 20/11 AM 4.4 -0.7 0.1 None 20/11 PM 6.0 0.9 0.3 None 21/12 PM 4.6 -0.5 0.6 None