A new mass of Sahara dust has begun to enter Puerto Rico, starting in the east and gradually spreading to the rest of the island. According to meteorologist Lee Ann Inglés Serrano from the National Meteorological Service (SNM) in San Juan, the particulate matter is entering between Vieques and Culebra, with concentrations expected to increase throughout the day. The peak of the event is expected on Thursday, with moderate concentrations of Sahara dust potentially persisting over the region.
Inglés Serrano stated that the particulate matter could remain until at least Saturday. Light showers are possible in the east and north-central areas during the morning, but rainfall activity will be limited due to the Sahara dust. In the afternoon, localized showers, some intense, could occur in western Puerto Rico.
A high heat risk is also expected in areas with more sun exposure, with heat indices ranging from 99 to 106 degrees Fahrenheit in various regions. Additionally, a warning is in effect for small boat operators in the Atlantic and Caribbean, as well as in the Anegada and Mona passages, due to windy conditions that could generate waves of up to six feet. The risk of marine currents will be moderate for beaches in the north, east, and south of Puerto Rico, and swimmers are advised to exercise caution.