405
FLCA42 TJSJ 030825
HWOSJU

Hazardous Weather Outlook
National Weather Service San Juan PR
425 AM AST Wed Sep 3 2025

AMZ711>745-PRZ001>013-040830-
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-
425 AM AST Wed Sep 3 2025

This Hazardous Weather Outlook is for portions of Puerto Rico.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms, particularly across the
eastern interior and northwestern sections of 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 northwestern 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 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. These conditions are most likely across all low,
urban and coastal areas of Puerto Rico.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The excessive heat threat will continue through the weekend across
most coastal and urban areas of the lower elevations of the islands.
Thunderstorms are expected each afternoon over portions of the
interior and western Puerto Rico, which may lead to urban and small
stream flooding, lightning strikes, and strong gusty winds. A
tropical wave is expected to move across the local area between
Friday and Saturday, increasing shower and thunderstorm activity in
general. A moderate risk of rip currents will return during the
first part of the 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-VIZ001-002-040830-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
425 AM AST Wed Sep 3 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. These conditions are most likely across the urban
and coastal areas of Saint Thomas, Saint John, and Saint Croix.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The excessive heat threat will continue through the weekend across
most coastal and urban areas of the lower elevations of the islands.
A tropical wave is expected to move across the local area between
Friday and Saturday, increasing shower and thunderstorm activity in
general. A moderate risk of rip currents will return on Monday
across most east and north facing beaches of St. Croix.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$