Coastal Flood Advisory

Locations Affected

Rio Grande, NJ ∙ Nanticoke Indian Tribe State Designated Tribal Statistical Area, DE ∙ Millsboro, DE ∙ Harrington, DE ∙ Fenwick Island, DE ∙ Woodbine, NJ ∙ Strathmere, NJ ∙ Rising Sun-Lebanon, DE ∙ Leipsic, DE ∙ Cape May, NJ

Full Alert Message

Coastal Hazard Message National Weather Service Mount Holly NJ 1110 AM EDT Tue Aug 19 2025 ...COASTAL FLOOD ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM EDT THIS EVENING... * WHAT...Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, Kent and Inland Sussex. In New Jersey, Cape May. * WHEN...From 4 PM this afternoon to 10 PM EDT this evening. * 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 Advanced Hydrologic Prediction Service at water.weather.gov/ahps for additional water level and flood impact information for your local tide gauge. && Time of high total tides are approximate to the nearest hour. Murderkill River at Bowers Beach MLLW Categories - Minor 6.6 ft, Moderate 7.6 ft, Major 8.6 ft MHHW Categories - Minor 0.9 ft, Moderate 1.9 ft, Major 2.9 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 19/07 PM 6.9 1.2 0.6 Minor 20/07 AM 5.6 -0.1 1.3 None 20/08 PM 6.9 1.2 0.5 Minor 21/09 AM 6.3 0.6 1.4 None 21/09 PM 8.4 2.7 2.0 Moderate 22/09 AM 7.7 2.0 2.6 Moderate 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 -------- --------- --------- --------- -------- 19/06 PM 6.3 1.7 1.3 Minor 20/07 AM 4.8 0.2 1.1 None 20/07 PM 6.2 1.5 1.1 Minor 21/08 AM 5.6 1.0 1.7 None 21/08 PM 7.8 3.2 2.7 Moderate 22/09 AM 6.5 1.8 2.4 Minor 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 -------- --------- --------- --------- -------- 19/06 PM 5.4 1.4 0.9 Minor 20/06 AM 4.1 0.1 0.9 None 20/07 PM 5.4 1.4 0.8 Minor 21/07 AM 4.6 0.6 1.2 None 21/08 PM 6.8 2.8 2.2 Moderate 22/08 AM 6.2 2.2 2.7 Minor 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 -------- --------- --------- --------- -------- 19/06 PM 6.5 1.4 1.0 Minor 20/06 AM 5.1 0.0 1.0 None 20/07 PM 6.5 1.4 0.9 Minor 21/07 AM 5.7 0.6 1.4 None 21/08 PM 8.1 3.0 2.5 Moderate 22/08 AM 7.1 2.0 2.5 Minor

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