FGCA72 TJSJ 162025
ESFSJU
PRC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-031-
033-035-037-039-041-043-045-047-049-051-053>055-057-059-061-063-065-
067-069-071-073-075-077-079-081-083-085-087-089-091-093-095-097-099-
101-103-105-107-109-111-113-115-117-119-121-123-125-127-129-131-133-
135-137-139-141-143-145-147-149-151-153-VIC010-020-030-180000-

Hydrologic Outlook
National Weather Service San Juan PR
425 PM AST Fri May 16 2025

...THE RISK OF FLOODING CONTINUES FOR PUERTO RICO AND THE VIRGIN 
ISLANDS THROUGH SATURDAY...

An upper-level trough moving across the Dominican Republic, combined 
with abundant moisture, will result in the development of showers 
and thunderstorms across the local islands today and Saturday.

Today, showers are expected to develop across the islands, with the 
highest accumulations across the interior, west and northwest Puerto 
Rico. Then, tonight, as the trough crosses the region, the showers 
and thunderstorms will spread across the eastern half of Puerto 
Rico, including Vieques and Culebra, and also over the Virgin 
Islands. This activity is expected to continue on Saturday too, but 
the weather is expected to improve on Sunday, as the trough departs 
toward the open Atlantic waters.

Based on the latest guidance, there is a moderate confidence in the 
forecast (40-60%), and the rainfall amounts are still expected to 
range from 2 to 4 inches with locally higher amounts.

Due to already saturated soils and rivers and tributaries running 
well above normal levels, there is a risk for flooding across Puerto 
Rico and the Virgin Islands through Saturday. Additional impacts 
include landslide, urban, and flash flood in areas with the heaviest 
amount of rainfall.
$$

ERG