BREAKING

Hazardous Marine and Coastal Conditions Expected Across USVI and Puerto Rico From Thanksgiving Day and Throughout Weekend

Weather Updates Published On November 22, 2021 04:30 PM
Staff Consortium | November 22, 2021 04:30:15 PM

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A long-period northerly swell is expected to cause hazardous marine and coastal conditions across the Atlantic waters and passages, and along the northern exposed beaches of the U.S. Virgin Islands and Puerto Rico from Thursday (Thanksgiving Day) through the weekend, the National Weather Service in Puerto Rico has announced.

According to the  release, seas are forecast to build to around 8 feet or higher for the Atlantic waters, and the long-period swell is expected to cause rough surf conditions and life-threatening rip currents from the northwest to east coast of Puerto Rico, including Culebra and some beaches of northern Vieques. Across the USVI, the main threat is expected along the west to the northern coast of St. Thomas, but the threat of strong rip currents could spread and increase across the rest of the islands during the weekend, the NWS said.

Potential Hazards and Impacts:

  • Marine: Seas are forecast to build quickly to between 6 and 8 feet, and occasionally up to 10 feet by Thursday afternoon across the offshore Atlantic waters, and between 5 and 7 feet or higher across the Atlantic coastal waters, including the local passages. Small Craft Advisory conditions are expected to continue during the weekend as the swell slowly subsides across the offshore Atlantic waters
  • Coastal Areas: The swell is likely to cause large breaking waves between 8 and 12 feet, and occasionally higher at times, along the outer reefs and unprotected, north-exposed beaches of Puerto Rico, and between 6 and 10 feet, and occasionally higher, in similar areas of Culebra and along the northwestern coast of St. Thomas. Breaking waves of these heights are associated with life-threatening rip currents and high surf conditions.
  • Timing: The swell is forecast to peak Thursday evening into Friday morning, and then slowly subside through Sunday

A new update will be provided tomorrow. Forecast wave heights may change between model runs, and the forecast will be adjusted as needed.

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