Puerto Rico – Isolated to scattered showers were observed throughout the local waters at night. Some of these downpours reached coastal sectors of eastern and northern Puerto Rico as well as Culebra and Vieques.
The accumulations of rain reported by the Dopler radar reached one inch of rain through the municipalities of Naguabo and Humacao. Minimum temperatures were in the mid 70s to low 80s through the high areas and in the high 60s to low 70s through the higher areas. The wind was light and variable.
To this day, the Flash Flood Watch remains in effect until early tonight. The tropical wave is expected to move through the region today. This tropical wave will provide enough tropical humidity to increase the potential for showers and thunderstorms over parts of the east, interior and west of Puerto Rico.
Rain accumulations today are forecast to fluctuate between 2 and 4 inches of rainfall across eastern Puerto Rico and for the rest of the area it is expected to see between 1 and 3 inches. Small stream and urban flooding is expected through the area with the heaviest downpours. Maximum temperatures will fluctuate between the high 70s to the high 80s and the wind will be from the east between 10 to 15 mph with variation in sea breeze.
Calm maritime conditions are expected to continue with swells of up to 5 feet and winds of up to 15 knots for most waters. Choppy maritime conditions are possible across eastern Atlantic offshore waters with swells of up to 6 feet. Therefore, small boat operators should exercise caution. For bathers, there is a moderate risk of ocean currents for the north and east coasts of Puerto Rico today. An increase in downpour and thunderstorm activity is expected through local waters due to the passage of the tropical wave today.