Watches, Warnings & Advisories



2 products issued by NWS for: Mayaguez PR

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service San Juan PR
511 AM AST Sun Apr 27 2025

AMZ711>745-PRZ001>013-280915-
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-
North Central-Central Interior-Ponce and Vicinity-Northwest-
Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
The nearshore and off shore Atlantic and Caribbean Coastal Waters-
511 AM AST Sun Apr 27 2025

This Hazardous Weather Outlook is for portions of Puerto Rico.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms, particularly across
interior and northwestern Puerto Rico. Stay alert and be prepared
to take shelter if storms develop.

.Excessive Rainfall...Flooding in urban areas, roads, small
streams, and washes, particularly across north, northwest and
central interior Puerto Rico. There is a low chance of isolated
flash floods. Elsewhere, plan for water ponding on roads and in
poorly drained areas.

.Excessive Heat...This level of heat affects primarily those
individuals extremely sensitive to heat, especially when outdoors
without effective cooling and/or adequate hydration. These
conditions are most likely across urban and coastal areas.

.Rip Currents...Life-threatening rip currents are likely in the
surf zone, particularly across northern exposed beaches in Puerto
Rico and Culebra. These life- threatening conditions are possible
elsewhere, especially near piers, jetties and channels.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Moderate rip current risk return early next week and is expected
to prevail most of the week. Shower and thunderstorm development
is expected to continue through midweek, increasing the risk of
flooding and the potential for lightning activity and gusty wind
conditions.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.

$$



Hydrologic Outlook

Hydrologic Outlook
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-VIC010-020-030-281400-

Hydrologic Outlook
National Weather Service San Juan PR
447 AM AST Sun Apr 27 2025

...AN INCREASED POTENTIAL OF SHOWERS AND THUNDERSTORMS WILL CONTINUE
TODAY AND THROUGH MUCH OF THE WORKWEEK...

Abundant moisture, along with a series of troughs, will continue to
enhance the potential for showers and thunderstorms today,
and stretching into at least Thursday.

At this time, USGS river sensors indicate that most streams are
running normal to much above normal, and soils are saturated along
eastern, interior and western Puerto Rico. Some rivers reached
action to minor flood stage with yesterday`s heavy rains.
Additionally, winds are expected to be weak through much of this
period, so any
rainfall activity that develops will be long-lasting.

In general, we are expecting additional rainfall accumulation of 2
to 4 inches each day, with the heaviest accumulation along the
interior, north and western Puerto Rico. However, periods of heavy
rain will also reach the Virgin Islands and eastern Puerto Rico,
including the San Juan metropolitan area, too. There is an elevated
risk of flooding each day through Thursday.

The likelihood of urban and small stream flooding, mudslides and
rapid river rises will increase, and there is a chance of isolated
flash flooding as well.

There is some uncertainty in the location and timing of this rain,
as well as how much cloud coverage will limit the development of
afternoon showers and thunderstorms. However, there is a high
confidence on a wet and unsettled period for Puerto Rico, the Virgin
Islands and local waters. Conditions are expected to improve next
Saturday, May 3rd, but changes in the forecast are likely before
then.

Please stay tuned for further updates. This product will be updated
if necessary.
$$

CVB