Heat Advisory
* WHAT...This level of heat affect most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration. Impacts possible in some health system and in
heat-sensitive industries.
* WHERE...Portions of Puerto Rico and Virgin Islands.
* WHEN...From 10 AM this morning to 5 PM AST this afternoon.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
From: Oct 02, 2025 07:56
Until: Oct 02, 2025 16:00
Extreme Heat Warning
* WHAT...This level of heat affects anyone without effective cooling
and/or adequate hydration. Impacts likely in some health systems,
heat-sensitive industries and infrastructure.
* WHERE...All urban and coastal areas of Puerto Rico, as well as the
eastern interior of Puerto Rico, Vieques, Culebra, and U.S. Virgin
Islands.
* WHEN...Until 5 PM AST this afternoon.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
From: Oct 01, 2025 15:58
Until: Oct 01, 2025 21:00
Heat Advisory
* WHAT...This level of heat affect most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration. Impacts possible in some health system and in
heat-sensitive industries.
* WHERE...All urban and coastal areas, as well as the eastern
interior of Puerto Rico, Vieques, Culebra, and U.S. Virgin Islands.
* WHEN...Until 5 PM AST this afternoon.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
From: Sep 30, 2025 15:34
Until: Sep 30, 2025 21:00
Rip Current Statement
* WHAT...Life-threatening rip currents.
* WHERE...Beaches of the San Juan metropolitan area,
northeastern Puerto Rico, and Culebra.
* WHEN...Through late tonight.
* IMPACTS...Rip currents can sweep even the best swimmers away
from shore into deeper water, where it becomes difficult to
return to safety.
* ADDITIONAL DETAILS...A pulse of a northeasterly swell from
Major Hurricane Humberto will maintain seas up to 7 feet
across the local waters through this evening, resulting in
breaking waves of 7-9 feet across exposed beaches. These
potentially life- threatening conditions will gradually
subside as the system moves away, with coastal conditions
improving on Monday.
From: Sep 29, 2025 03:15
Until: Sep 29, 2025 10:00
Extreme Heat Warning
* WHAT...This level of heat affects anyone without effective cooling
and/or adequate hydration. Impacts likely in some health systems,
heat-sensitive industries and infrastructure.
* WHERE...Eastern Interior, Mayaguez and Vicinity, North Central,
Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity,
Southeast, and Southwest Counties.
* WHEN...From 10 AM this morning to 5 PM AST this afternoon.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
From: Sep 27, 2025 06:44
Until: Sep 27, 2025 14:45
Hydrologic Outlook
ESFSJU
A strong tropical wave, designated as Invest 94L by the National
Hurricane Center, will approach the local islands as early as
Tuesday night, enhancing the chances of flooding through at least
late Thursday.
The first round of showers will reach the Virgin Islands on Tuesday
night and early Wednesday, with periods of moderate to heavy rain
anticipated. The rain will then spread across Vieques, Culebra, and
east and southeast Puerto Rico. This unsettled weather pattern is
expected to linger into at least Thursday. So far, the heaviest
activity should be focused along the vicinity of the Virgin Islands
and the eastern third of Puerto Rico.
The tropical wave appears to have a good structure in the low and
mid levels, and a big area of above than normal moisture content.
Also, previous rainfalls maintain soils saturated along portions of
the interior, western and the extreme east of Puerto Rico. Soils are
also saturated in portions of St.Croix and St. Thomas, according to
the National Moisture Soil Analysis. However, soils are not
saturated along the east-interior, and most of southern Puerto Rico.
U.S.Geological Survey sensors shows that most streams are running
near normal, but some rivers are running below normal in the
east-interior and southeast.
Although it is not expected to be raining all day long, or
everywhere at the same time, this wet period will increase the
likelihood of experiencing urban and small stream flooding,
landslides, rapid river rises, and isolated flash flood and rivers
reaching flood stage. It is worth mentioning, that even though
rivers are not as high in the east, these rivers tend to react
quickly. Across the Virgin Islands, water surges along drainage guts
are a concern as well.
The local guidance are in agreement that the territories will
observe these rains, but there is some uncertainty in the exact
amounts, timing and location. For now, the official forecast calls
for 2 to 4 inches and isolated amounts up to 6 inches through the
entire period (late Tuesday through late Thursday).
Residents and visitors are urged to stay away from rivers and flood
prone areas, and to stay tuned to any changes in the forecast and
flood products issued by the Weather Forecast Office.
From: Sep 23, 2025 14:06
Until: Sep 27, 2025 00:00
