High Surf Advisory
Coastal Hazard Message
National Weather Service Tiyan GU
458 AM ChST Sun Dec 7 2025
FMZ037-071000-
/O.CON.PGUM.SU.Y.0040.000000T0000Z-251207T1900Z/
/O.CON.PGUM.CF.S.0006.000000T0000Z-251207T1900Z/
Yap-
458 AM ChST Sun Dec 7 2025
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM CHST MONDAY...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...
* WHAT...Large breaking waves of 7 to 9 feet and isolated minor
coastal flooding up to half a foot.
* WHERE...North facing reefs of Yap.
* WHEN...Until 5 AM ChST Monday.
* IMPACTS...Some water on low lying roads and property. Dangerous
swimming and surfing conditions and localized beach erosion.
* ADDITIONAL DETAILS...An elevated north swell combined with a
northeast trade swell will produce hazardous surf along north facing
reefs. The surf combined with above normal King Tides will produce
minor coastal flooding during high tide along north facing reefs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Watch for debris along low-lying shorelines facing north.
&&
$$
Coastal Hazard Message
National Weather Service Tiyan GU
458 AM ChST Sun Dec 7 2025
FMZ023-071000-
/O.EXB.PGUM.SU.Y.0040.251207T0700Z-251208T0700Z/
Chuuk-
458 AM ChST Sun Dec 7 2025
...HIGH SURF ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM
CHST MONDAY...
* WHAT...Large breaking waves of 7 to 9 feet expected.
* WHERE...North facing reefs of Chuuk.
* WHEN...From 5 PM this afternoon to 5 PM ChST Monday.
* IMPACTS...Dangerous swimming and surfing conditions and localized
beach erosion.
* ADDITIONAL DETAILS...the mixture of the elevated trade swell with
a pulse of northerly swell will support surf up to 9 feet along
north facing reefs late this afternoon and will continue through
Monday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
&&
$$
Coastal Hazard Message
National Weather Service Tiyan GU
458 AM ChST Sun Dec 7 2025
PWZ002>004-070700-
/O.CON.PGUM.SU.Y.0040.000000T0000Z-251207T0700Z/
/O.CON.PGUM.CF.S.0006.000000T0000Z-251207T0700Z/
Melekeok-Airai-Koror-
458 AM ChST Sun Dec 7 2025
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 PM CHST THIS
AFTERNOON...
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT THROUGH THIS
AFTERNOON...
* WHAT...Large breaking waves of 7 to 9 feet and isolated minor
coastal flooding up to half a foot.
* WHERE...North facing reefs of Palau.
* WHEN...Until 5 PM ChST this afternoon.
* IMPACTS...Some water on low lying roads and property. Dangerous
swimming and surfing conditions and localized beach erosion.
* ADDITIONAL DETAILS...The mixture of the north swell and trade
swell is expected to decrease late this afternoon and allow surf to
drop below 9 feet. Also as the overall magnitude of high tide
decreases, the risk for minor coastal flooding will also decrease.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Watch for debris along low-lying shorelines facing north.
&&
$$
Schank
Coastal Hazard Message
National Weather Service Tiyan GU
357 AM ChST Sun Dec 7 2025
GUZ001-MPZ001>003-070600-
/O.CON.PGUM.SU.Y.0041.000000T0000Z-251207T0600Z/
/O.CON.PGUM.RP.S.0019.000000T0000Z-251207T0600Z/
Guam-Rota-Tinian-Saipan-
357 AM ChST Sun Dec 7 2025
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 PM CHST THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS
AFTERNOON...
* WHAT...Large breaking waves of 7 to 9 feet and dangerous rip
currents expected.
* WHERE...North facing reefs of the Marianas.
* WHEN...Until 4 PM ChST this afternoon.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion. Rip currents can sweep even the best
swimmers away from shore into deeper water.
* ADDITIONAL DETAILS...Surf is then likely to fall below hazardous
levels this evening as the pulse in northerly swell diminishes,
which will also allow rip current risk to drop to moderate along
north facing reefs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
If caught in a rip current, relax and float. Don`t swim against
the current. If able, swim in a direction following the
shoreline. If unable to escape, face the shore and call or wave
for help.
&&
$$
Schank
Coastal Hazard Message
National Weather Service Tiyan GU
258 AM ChST Sun Dec 7 2025
FMZ001-070800-
/O.CON.PGUM.SU.Y.0038.000000T0000Z-251208T0500Z/
Kosrae-
258 AM ChST Sun Dec 7 2025
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 3 PM CHST MONDAY...
* WHAT...Large breaking waves of 8 to 10 feet.
* WHERE...North and east facing reefs of Kosrae.
* WHEN...Until 3 PM ChST Monday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
* ADDITIONAL DETAILS...Surf is expected to remain hazardous through
Monday afternoon. The primary trade swell is expected to subside
through the day Monday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
&&
$$
Coastal Hazard Message
National Weather Service Tiyan GU
258 AM ChST Sun Dec 7 2025
FMZ013-070800-
/O.CON.PGUM.SU.Y.0039.251206T2100Z-251208T0500Z/
Pohnpei-
258 AM ChST Sun Dec 7 2025
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO
3 PM CHST MONDAY...
* WHAT...Large breaking waves of 9 to 12 feet.
* WHERE...North and east facing reefs of Pohnpei.
* WHEN...From 7 AM this morning to 3 PM ChST Monday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
* ADDITIONAL DETAILS...A significant trade-wind swell will move into
the region this morning allowing surf to build to hazardous levels
for both north (9 feet) and east (12 feet) facing reefs. The trade
swell is expected to subside through late tonight.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
&&
$$
Schank
Coastal Hazard Message
National Weather Service Tiyan GU
258 AM ChST Sun Dec 7 2025
MHZ002-070800-
/O.EXT.PGUM.CF.Y.0006.000000T0000Z-251207T1700Z/
/O.CON.PGUM.SU.Y.0039.000000T0000Z-251208T0500Z/
Majuro-
258 AM ChST Sun Dec 7 2025
...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 3 AM CHST MONDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 3 PM CHST MONDAY...
* WHAT...Large breaking waves of 10 to 13 feet and moderate coastal
flooding.
* WHERE...North and east facing reefs of Majuro.
* WHEN...For the Coastal Flood Advisory, until 3 AM ChST Monday.
For the High Surf Advisory, until 3 PM ChST Monday.
* IMPACTS...Flooding of lots, parks, and roads with only isolated
road closures expected. Dangerous swimming and surfing conditions
and localized beach erosion.
* ADDITIONAL DETAILS...A significant trade-wind swell has moved into
the Marshall Islands, leading to hazardous surf around 12 feet for
north and east facing reefs. The increased swell combined along
with elevated tides has caused moderate coastal flooding and is
expected to occur during high tide this evening. The risk of
coastal flooding will decrease tonight as the overall magnitude of
high tides decrease.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
&&
$$
