783
WHMY40 PGUM 210512
CFWGUM
URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
312 PM CHST SUN DEC 21 2025
GUZ001-MPZ001>003-212100-
/O.CON.PGUM.SU.Y.0043.000000T0000Z-251222T1800Z/
/O.CON.PGUM.RP.S.0021.000000T0000Z-251222T1800Z/
GUAM-ROTA-TINIAN-SAIPAN-
312 PM CHST SUN DEC 21 2025
..HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 AM CHST TUESDAY
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE MONDAY
NIGHT...
* WHAT...LARGE BREAKING WAVES 10 TO 13 FEET AND DANGEROUS RIP
CURRENTS.
* WHERE...HAZARDOUS SURF ALONG NORTH AND EAST FACING REEFS AND
DANGEROUS RIP CURRENTS ALONG NORTH AND EAST FACING REEFS OF THE
MARIANAS.
* WHEN...UNTIL 6 AM CHST MONDAY.
* 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...NORTHEAST TRADE SWELL AND LONGER-PERIOD NORTH
TO NORTHEAST SWELL ARE GENERATING A HIGH RISK OF RIP CURRENTS ALONG
NORTH AND EAST FACING REEFS AND HAZARDOUS SURF ALONG NORTH FACING
REEFS. NORTHEAST TRADE SWELL CONTINUES TO BUILD THROUGH THE WEEKEND
WHERE SURF WILL LIKELY REACH UP TO 12 FEET ALONG NORTH AND EAST
FACING REEFS OVER THE NEXT 12 OR SO, EXTENDING HAZARDOUS SURF TO
EAST FACING REEFS. SWELL MAY STAY ELEVATED MONDAY, WHICH MAY
WARRANT AN EXTENSION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RIP CURRENTS WILL BE LIFE THREATENING. 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.
BOWSHER
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