The National Weather Service (NWS) in San Juan issued a heat advisory for this Sunday in Puerto Rico, according to meteorologist Manuel Ramos. The warning is in effect from 10:00 AM to 4:00 PM due to heat indices near or exceeding 107 degrees Fahrenheit. The most prone areas are the north-central, west, and southwest of Puerto Rico.
However, the heat outlook for the afternoon may change depending on the development of showers and thunderstorms, especially in the interior, west, and northwest of the island. Ramos attributed the rain activity to a trough over the Dominican Republic, which maintains humid conditions in the region. For the week, a weak tropical wave is expected to arrive between Wednesday and Thursday.