Coastal Hazard Message
National Weather Service Tiyan GU
238 PM ChST Wed Dec 17 2025

FMZ001-171845-
/O.CON.PGUM.SU.Y.0042.000000T0000Z-251219T0500Z/
Kosrae-
238 PM ChST Wed Dec 17 2025

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 3 PM CHST FRIDAY...

* WHAT...Large breaking waves of 6 to 8 feet.

* WHERE...East facing reefs of Kosrae.

* WHEN...Until 3 PM ChST Friday.

* IMPACTS...Dangerous swimming and surfing conditions and
  localized beach erosion.

* ADDITIONAL DETAILS...East to northeast trade swell is generating
  hazardous surf along east-facing reefs, and will continue
  through late this week. Additional sets of northerly swell will
  arrive over the weekend, which may prolong the advisory along
  east-facing reefs and possibly bring hazardous surf along north-
  facing reefs as well.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

&&

$$

Doll

Coastal Hazard Message
National Weather Service Seattle WA
818 PM PST Tue Dec 16 2025

WAZ330-331-171300-
/O.CON.KSEW.SU.Y.0008.251217T0900Z-251217T1800Z/
Northern Washington Coast-Grays Harbor County Coast-
818 PM PST Tue Dec 16 2025

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 AM PST
WEDNESDAY...

* WHAT...Large breaking waves along the coast.

* WHERE...Northern Washington Coast and Grays Harbor County
  Coast zones.

* WHEN...From 1 AM to 10 AM PST Wednesday.

* IMPACTS...Large breaking waves can knock people off their feet,
  move driftwood and debris, and crash over rocks and jetties.
  People can be injured or drown while observing the ocean.
  Localized beach and coastal erosion is expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never turn your back on the ocean and keep children and pets
close. Know the tides and forecast conditions. Follow warning
signs and respect barriers.

&&

$$

Coastal Hazard Message
National Weather Service San Juan PR
907 PM AST Tue Dec 16 2025

PRZ001-002-005-008-170915-
/O.NEW.TJSJ.SU.Y.0018.251217T1000Z-251217T2200Z/
/O.CON.TJSJ.RP.S.0032.000000T0000Z-251218T1000Z/
San Juan and Vicinity-Northeast-North Central-Northwest-
907 PM AST Tue Dec 16 2025

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE WEDNESDAY
NIGHT...
...HIGH SURF ADVISORY IN EFFECT FROM 6 AM TO 6 PM AST WEDNESDAY...

* WHAT...For the High Surf Advisory, large breaking waves of 10 to
  13 feet. For the High Rip Current, life-threatening rip
  currents.

* WHERE... For the High Surf Advisory, the most vulnerable areas
  for high surf and beach erosion include Pinones along Road 187,
  Parcelas Suarez, Villas del Mar, and Villa Christiana in Loiza;
  Fortuna in Luquillo; Pueblo and Tamarindo in Aguadilla; Barrio
  Obrero, Pueblo and Jareaito in Arecibo; Las Boca in Barceloneta;
  Machuca in Manati; Puerto Nuevo in Vega Baja; Ocean Park in San
  Juan; and Barrio Espinal in Aguada.

* WHEN...For the High Rip Current Risk remains through late
  wednesday night. For the High Surf Advisory from 6 AM to 6 PM
  AST wednesday.

* IMPACTS...For the High Surf Advisory, High waves that can wash
  over jetties and sweep people and pets onto jagged rocks. Rough
  surf may also knock you down. Large breaking waves will result
  in localized beach/dune structure erosion and dangerous swimming
  conditions. For the High Rip Current Risk, rip currents can
  sweep even the best swimmers away from shore into deeper water,
  where it becomes difficult to return to safety.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a high risk of rip currents.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins, jetties
and piers. Heed the advice of lifeguards, beach patrol flags and
signs.

If you become caught in a rip current, yell for help. Remain
calm, do not exhaust yourself and stay afloat while waiting for
help. If you have to swim out of a rip current, swim parallel to
shore and back toward the beach when possible. Do not attempt to
swim directly against a rip current as you will tire quickly.

A High Surf Advisory means that high surf will affect beaches in
the advisory area, producing localized beach erosion and
dangerous swimming conditions.

&&

$$