SAN JUAN — A long-period northerly swell will bring hazardous marine and coastal conditions today and throughout the weekend across the Atlantic waters and local Caribbean passages from the northwest to the northeast coast of Puerto Rico, Culebra, Vieques, St. Thomas, St. John, and St. Croix.
A High Surf Advisory is now in effect from noon through 6:00 a.m. AST Saturday. A small Craft Advisory is now in effect for the Mona and Anegada Passage.
Areas at Risk and Timing
- For marine hazards:
* Small Craft Advisories are in effect across the Atlantic waters and local Caribbean passages throughout the weekend.
- For coastal hazards:
* There is a High Risk of Rip Currents along the north-facing beaches of Puerto Rico, from Rincón and Aguada to Fajardo, Culebra, St. Thomas, and St. John, through at least Sunday morning.
* High Surf Advisory is now in effect from the northwest to the northeast coast of Puerto Rico, Culebra, St. Thomas, and St. John from noon AST today through 6 AM AST Saturday due to breaking waves between 10 and 13 feet.
Hazards & Potential Threats/Impacts
- Small Craft Advisory: Hazardous seas impacting small crafts.
- High Rip Current Risk: Rip currents with the potential to pull even experienced swimmers away from shore.
- High Surf Advisory: Large breaking waves can wash over jetties, sweeping people and pets onto rocks, and rough surf may knock individuals down. Localized beach and dune erosion, along with dangerous swimming conditions are likely. Localized minor flooding and damage to beachfront structures is possible.
For updates on marine conditions, rip currents, and other hazard risks, along with a detailed map of the areas at risk, refer to the Experimental Graphical Hazard Weather Outlook: https://www.weather.gov/erh/ghwo?wfo=sju.
