Dense cloud of Saharan dust sets in

SAN JUAN — A dense Saharan Air Layer will move across the Virgin Islands and Puerto Rico today.

It will occupy our islands for at least three consecutive days, starting from today and extending until at least Thursday in moderate to high concentrations. The peak day will be tomorrow.

In addition, a Heat Warning was issued for north, west and south Puerto Rico, Culebra, and the U.S. Virgin Islands.

A Heat Advisory was issued for interior and eastern Puerto Rico and Vieques.

Moderate rip current risk for all the areas in yellow.

John McCarthy

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John F. McCarthy is a veteran journalist in the Caribbean, writing from the "Decision Space" where survival meets the surreal. His reporting steel was tempered by a lineage of legendary editors and broadcasters, including Ed Wynn Brant (The Bomb), Owen Eschenroder (Ann Arbor News), Lynelle Emanuel (BVI Beacon), and Charles Thanas (WSVI-TV). Alongside longtime colleague Kenneth C. "Casey" Clark, McCarthy has navigated the front lines of the territory’s history—from the 1997 volcanic "snow" to every major hurricane since Hugo. Known for leaning out of doorless helicopters to capture the "money shot," McCarthy now edits the V.I. Free Press, providing the essential link between the island's colonial past and its SpaceX future.