Coastal Flood Warning

Full Alert Message

Coastal Hazard Message National Weather Service Mount Holly NJ 531 AM EDT Thu Aug 21 2025 ...COASTAL FLOOD WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 AM EDT SATURDAY... * WHAT...One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Middlesex and Western Monmouth. * WHEN...From 5 PM this afternoon to 2 AM EDT Saturday. * IMPACTS...At this level, widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable. Some damage to vulnerable structures may begin to occur. * ADDITIONAL DETAILS...The greatest impacts from coastal flooding are expected with this evening's high tide. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Coastal Flood Warning means that moderate or major tidal flooding is occurring or imminent. Be prepared for rising water levels and take appropriate action to protect life and property. Follow the recommendations of local emergency management officials. 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. Arthur Kill at Perth Amboy MLLW Categories - Minor 7.2 ft, Moderate 8.2 ft, Major 9.2 ft MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 21/07 AM 7.1 1.4 1.8 None 21/07 PM 8.5 2.8 2.2 Moderate 22/08 AM 7.4 1.7 1.9 Minor 22/08 PM 7.9 2.2 1.7 Minor 23/09 AM 6.4 0.7 0.7 None 23/09 PM 6.7 1.0 0.6 None Sandy Hook Bay at Sandy Hook MLLW Categories - Minor 6.7 ft, Moderate 7.7 ft, Major 8.7 ft MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact -------- --------- --------- --------- -------- 21/07 AM 6.7 1.5 1.9 Minor 21/07 PM 8.0 2.8 2.4 Moderate 22/08 AM 7.2 2.0 2.1 Minor 22/08 PM 7.5 2.3 1.8 Minor 23/09 AM 6.6 1.4 1.4 None 23/09 PM 6.8 1.6 1.2 Minor Watson Creek at Manasquan MLLW Categories - Minor 5.7 ft, Moderate 6.7 ft, Major 7.7 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 -------- --------- --------- --------- -------- 21/07 AM 5.7 1.3 1.7 Minor 21/07 PM 7.0 2.6 2.3 Moderate 22/08 AM 6.1 1.7 1.9 Minor 22/08 PM 5.9 1.5 1.2 Minor 23/08 AM 4.9 0.5 0.6 None 23/09 PM 5.0 0.6 0.3 None