Weather Alerts For Nassau, DE

# HEADLINE -------------------- COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL MIDNIGHT EDT FRIDAY NIGHT # SUMMARY -------------------- 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 -------- --------- --------- --------- -------- 22/06 PM 6.2 1.5 1.9 Minor 23/07 AM 6.2 1.5 1.8 Minor 23/07 PM 6.0 1.3 1.6 Minor 24/07 AM 5.8 1.2 1.1 None 24/08 PM 5.4 0.8 0.9 None 25/08 AM 5.6 1.0 0.5 None Barnegat Bay at Barnegat Light MLLW Categories - Minor 3.5 ft, Moderate 4.5 ft, Major 5.5 ft MHHW Categories - Minor 1.0 ft, Moderate 2.0 ft, Major 3.0 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 22/05 PM 3.9 1.4 1.5 Minor 23/06 AM 3.7 1.2 1.2 Minor 23/06 PM 3.7 1.2 1.2 Minor 24/06 AM 3.5 1.0 0.8 Minor 24/07 PM 3.0 0.5 0.5 None 25/07 AM 3.1 0.6 0.2 None # DETAILS -------------------- WHAT Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. WHERE In Delaware, Inland Sussex and Delaware Beaches. In New Jersey, Ocean and Coastal Ocean. WHEN Until midnight EDT Friday night. 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. ADDITIONAL DETAILS Elevated water levels and minor coastal flooding will continue through Friday evening particularly for the back bays. ISSUED AT Thursday, October 22, 2026 at 2:49 PM EDT ISSUED BY National Weather Service Mount Holly NJ HEADER Coastal Hazard Message # 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. # AREAS AFFECTED -------------------- Coastal Ocean, Delaware Beaches, Inland Sussex, Ocean