947
FLCA42 TJSJ 290808
HWOSJU

Hazardous Weather Outlook
National Weather Service San Juan PR
408 AM AST Tue Jul 29 2025

AMZ711>745-PRZ001>013-301000-
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-
408 AM AST Tue Jul 29 2025

This Hazardous Weather Outlook is for portions of Puerto Rico.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms, particularly across Vieques,
Culebra, and eastern Puerto Rico this morning, followed by
portions of the interior, northern and western Puerto Rico this
afternoon and evening. 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 and
western to 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 coastal areas and urban centers.

.Marine Conditions...Small craft should exercise caution,
particularly across portions of the local waters and passages.

.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across northern Puerto Rico. Isolated
stronger rip currents may occur elsewhere, especially near piers,
jetties, and channels.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Excessive heat concerns will persist through much of the period. A
series of tropical waves later this week into the weekend may
increase showers, raising the risk of ponding and localized
flooding. Breezy to locally windy conditions may offer limited
heat relief but will likely elevate marine and coastal hazards
starting Thursday.

.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-VIZ001-002-301000-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
408 AM AST Tue Jul 29 2025

This Hazardous Weather Outlook is for portions of USVI.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms, particularly this morning.
Stay alert and be prepared to take shelter if storms develop.

.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 all the islands.

.Marine Conditions...Small craft should exercise caution,
particularly across portions of the local waters and passages.

.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across St Croix. Isolated stronger rip
currents may occur elsewhere, especially near piers, jetties, and
channels.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Excessive heat concerns will persist through much of the period. A
series of tropical waves later this week into the weekend may
increase showers, raising the risk of ponding and localized
flooding. Breezy to locally windy conditions may offer limited
heat relief but will likely elevate marine and coastal hazards
starting Thursday.

.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.

$$