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FLCA42 TJSJ 240851
HWOSJU

Hazardous Weather Outlook
National Weather Service San Juan PR
451 AM AST Sun Aug 24 2025

AMZ711>745-PRZ001>013-251000-
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-
451 AM AST Sun Aug 24 2025

This Hazardous Weather Outlook is for portions of Puerto Rico.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms, particularly across the
western interior to western and southwestern Puerto Rico this
afternoon. Stay alert and be prepared to take shelter if storms
develop.

.Excessive Rainfall...Flooding in urban areas, roads, small
streams, and washes, particularly across the western interior to
western and southwestern Puerto Rico this afternoon. 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 anyone without
effective cooling and/or adequate hydration, with those sensitive
to heat at the highest risk. Impacts likely in some health
systems, heat-sensitive industries and infrastructures. These
conditions are most likely across all coastal and urban areas of
Puerto Rico, Vieques, and Culebra.

.Wind...Breezy conditions (18-22 kts | 21-25 mph), particularly
across coastal areas of northern and southern Puerto Rico, as well
as Vieques and Culebra. Unsecured items could blow around.

.Marine Conditions...Hazardous conditions for small craft in
areas with seas of 7 feet or higher, particularly across
the Atlantic waters and local Caribbean Passages. Small craft
should exercise caution elsewhere across the local waters.

.Rip Currents...Life-threatening rip currents are likely in the
surf zone, particularly across north- and east-exposed beaches of
Puerto Rico, from Rincon to Ceiba, as well as Vieques and
Culebra. These life- threatening conditions are possible across
most remaining beaches, with isolated stronger rip currents
possible elsewhere, especially near piers, jetties and channels.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

he risk of excessive rainfall will gradually decrease with each
passing day, while the threat of excessive heat will persist
throughout the workweek. Northerly swells generated by former
Hurricane Erin will continue to produce hazardous marine
conditions and maintain a high risk of life-threatening rip
currents, a situation further exacerbated by moderate to fresh
winds through the middle of the week. Additionally, a plume of the
Saharan Air Layer (SAL) will continue moving in through Tuesday,
bringing hazy skies, reduced visibility, and deteriorating air
quality. The combination of these breezy winds and much drier
conditions may also contribute to an elevated risk of fire weather
early next week.

.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.

$$

AMZ716-726-VIZ001-002-251000-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
451 AM AST Sun Aug 24 2025

This Hazardous Weather Outlook is for portions of USVI.

.DAY ONE...Today and Tonight

.Excessive Heat...This level of heat affects most individuals
sensitive to heat, especially those without effective cooling
and/or adequate hydration. Those extremely sensitive to heat face
the highest risk. Some health systems and heat-sensitive
industries could be affected.

.Wind...Breezy conditions (18-22 kts | 21-25 mph). Unsecured
items could blow around.

.Marine Conditions...Hazardous conditions for small craft in
areas with seas of 7 feet or higher, particularly across
the Atlantic waters and local Caribbean Passages. Small craft
should exercise caution elsewhere across the local waters.

.Rip Currents...Life-threatening rip currents are likely in the
surf zone. Isolated stronger rip currents possible elsewhere,
especially near piers, jetties and channels.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The threat of excessive heat is expected to persist throughout the
workweek. Northerly swells generated by former Hurricane Erin will
continue to produce hazardous marine conditions and maintain a
high risk of life-threatening rip currents, a situation further
exacerbated by moderate to fresh winds through the middle of the
week. Additionally, a plume of the Saharan Air Layer (SAL) will
continue moving in through Tuesday, bringing hazy skies, reduced
visibility, and deteriorating air quality.

.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.

$$