179
WHMY40 PGUM 210607
CFWGUM
URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
407 PM CHST FRI AUG 21 2026
MPZ002-003-212015-
/O.NEW.PGUM.SU.Y.0054.260821T0607Z-260823T0700Z/
/O.CON.PGUM.RP.S.0020.000000T0000Z-260823T0500Z/
TINIAN-SAIPAN-
407 PM CHST FRI AUG 21 2026
..HIGH SURF ADVISORY IN EFFECT UNTIL 5 PM CHST SUNDAY
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH SUNDAY
AFTERNOON...
* WHAT...FOR THE HIGH SURF ADVISORY, LARGE BREAKING WAVES OF 7 TO
10 FEET IN THE SURF ZONE. FOR THE HIGH RIP CURRENT RISK, DANGEROUS
RIP CURRENTS.
* WHERE...NORTH FACING REEFS OF TINIAN AND SAIPAN.
* WHEN...UNTIL 5 PM CHST SUNDAY.
* 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...AN EAST TO NORTHEAST SWELL ASSOCIATED WITH
TROPICAL STORM SAUDEL WILL BRING HAZARDOUS SURF ALONG NORTH FACING
REEFS, AND PRODUCE A HIGH RISK OF RIP CURRENTS ALONG THE EAST-
FACING REEFS OF TINIAN AND SAIPAN THROUGH AT LEAST SUNDAY
AFTERNOON.
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.
GUZ001-MPZ001-212015-
/O.CON.PGUM.RP.S.0020.000000T0000Z-260823T0500Z/
GUAM-ROTA-
407 PM CHST FRI AUG 21 2026
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH SUNDAY
AFTERNOON...
* WHAT...DANGEROUS RIP CURRENTS EXPECTED.
* WHERE...EAST FACING REEFS OF THE MARIANAS.
* WHEN...THROUGH SUNDAY AFTERNOON.
* IMPACTS...RIP CURRENTS CAN SWEEP EVEN THE BEST SWIMMERS AWAY
FROM SHORE INTO DEEPER WATER.
* ADDITIONAL DETAILS...AN EAST TO NORTHEAST SWELL ASSOCIATED WITH
TROPICAL STORM SAUDEL WILL BRING AN INCREASE IN SURF AND PRODUCE A
HIGH RISK OF RIP CURRENTS ALONG THE EAST-FACING REEFS OF GUAM AND
ROTA THROUGH AT LEAST SUNDAY AFTERNOON. AS SAUDEL MOVES CLOSER TO
THE FAR NORTHERN MARIANAS, SURF BUILDS ALONG NORTH- FACING REEFS,
POTENTIALLY BECOMING HAZARDOUS LATER THIS WEEKEND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
WILLIAMS
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