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FXCA62 TJSJ 240010 AAA
AFDSJU

Area Forecast Discussion...UPDATED
National Weather Service San Juan PR
810 PM AST Fri Oct 23 2026

...UPDATE...

Extended the high risk of rip current across northern coastl
areas and Culebra until late Saturday night.

.KEY MESSAGES...
Issued at 759 PM AST Fri Oct 23 2026

- Showers and isolated thunderstorms will continue through the
  weekend, with locally heavy rainfall that may lead to urban and
  small-stream flooding, rapid river rises, and isolated flash
  flooding, particularly during the afternoon hours.

- A north-northwesterly swell will continue to produce dangerous
  breaking waves and life-threatening rip currents across the
  exposed northern beaches through at least Saturday. Additional
  swell pulses may keep swimming conditions hazardous into early
  next week. Please refer to the Marine and Beach Forecast
  sections below for detailed information.

- Warm and humid conditions will persist through the next several
  days. Heat impacts may become more pronounced early next week,
  especially along the coasts, in low- lying areas, interior
  valleys, and urban areas.

&&


.AVIATION...
(18Z TAFS)
Issued at 759 PM AST Fri Oct 23 2026

Mainly VFR conds are expected across all TAF sites through most of
the forecast period. However, VCSH and -TSRA are possible and could
result in intermittent/brief MVFR conds and mountain obscurations at
TJBQ thru 24/22z. Confidence remains low as clod cover could help to
limit convection. VCSH are expected across TJSJ and USVI sites
during the overnight. Mainly S-SE winds up to 10-15 kt with gust up
to 20 kt, and SE winds around 5 to 10 kt overnight.



.MARINE...
Issued at 759 PM AST Fri Oct 23 2026

Moderate to locally fresh east-to-southeast winds will prevail
through the weekend as the surface pressure gradient tightens across
regional waters. A north-northwesterly swell will maintain seas of 5
to 7 feet across the Atlantic waters and the Mona Passage today,
with additional pulses of northerly swell continuing through early
next week. Small Craft Advisories remain in effect for the Atlantic
waters and the Mona Passage through at least Saturday. Isolated
thunderstorms and scattered showers will persist across the
Caribbean waters and western Puerto Rico today, bringing the
potential for locally higher seas and strong, gusty winds.


&&

.BEACH FORECAST...
Issued at 759 PM AST Fri Oct 23 2026

The arrival of a long-period north-northwesterly swell today will
produce hazardous breaking waves of 6 to 12 feet along exposed
northern and western coastlines of Puerto Rico, as well as Culebra
and St. Thomas. Consequently, a High Surf Advisory is in effect for
north-facing beaches of Puerto Rico through at least 6 PM AST this
afternoon, and a Rip Current Statement remains in effect for beaches
along western-to-northeastern Puerto Rico, Culebra, and the northern
U.S. Virgin Islands through at least Saturday.

Beachgoers and inexperienced swimmers should follow lifeguard
instructions and avoid swimming or walking near rock formations on
exposed beaches. Additional pulses of the northerly swell are
expected through early next week, maintaining an elevated risk of
life-threatening rip currents.

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...High Rip Current Risk through late Saturday night for PRZ001-002-
     005-008-012.

     High Rip Current Risk through Saturday afternoon for PRZ010.

VI...High Rip Current Risk through Saturday afternoon for VIZ001.

AM...Small Craft Advisory until noon AST Saturday for AMZ711-712-741.

&&

$$

NWS SJU Office Area Forecast Discussion