604
WHMY40 PGUM 020529
CFWGUM
URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
329 PM CHST SUN AUG 2 2026
GUZ001-MPZ001>003-021930-
/O.NEW.PGUM.SU.Y.0049.260802T1200Z-260808T0600Z/
/O.CON.PGUM.RP.S.0019.260802T0600Z-260808T0600Z/
GUAM-ROTA-TINIAN-SAIPAN-
329 PM CHST SUN AUG 2 2026
...HIGH SURF ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 PM
CHST SATURDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH SATURDAY
AFTERNOON...
* WHAT...LARGE BREAKING WAVES OF 8 TO 12 FEET AND DANGEROUS RIP
CURRENTS EXPECTED IN THE SURF ZONE.
* WHERE...NORTH AND EAST FACING REEFS OF THE MARIANAS.
* WHEN...FOR THE HIGH SURF ADVISORY, FROM 10 PM THIS EVENING TO
4 PM CHST SATURDAY. FOR THE HIGH RIP CURRENT RISK, THROUGH
SATURDAY 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...LONG-PERIOD EAST TO NORTHEAST SWELL,
EMANATING FROM DISTANT TYPHOON DOLPHIN, CONTINUES TO PRODUCE A
HIGH RISK OF RIP CURRENTS ALONG EAST-FACING REEFS, SPREADING TO
NORTH-FACING REEFS BEGINNING TONIGHT, WITH HAZARDOUS SURF ALSO
EXPECTED TO DEVELOP ALONG NORTH AND EAST-FACING REEFS TONIGHT.
AS DOLPHIN PASSES THE FAR NORTHERN CNMI, THE LONG-PERIOD SWELL
DIRECTION IS EXPECTED TO SHIFT NORTH OVER THE NEXT FEW DAYS, AND
THEN NORTHWEST AROUND MIDWEEK. AS IT DOES SO, A HIGH RISK OF
RIP CURRENTS, AND HAZARDOUS SURF, IS EXPECTED TO DEVELOP ALONG
WEST FACING REEFS LATER THIS WEEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RIP CURRENTS WILL BE LIFE THREATENING. INEXPERIENCED SWIMMERS
SHOULD REMAIN OUT OF THE WATER DUE TO DANGEROUS SURF CONDITIONS.
RIP CURRENTS WILL BE LIFE THREATENING. 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.
DECOU
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