594
WHGM70 PGUM 090536
MWWGUM
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
336 PM CHST SUN AUG 9 2026
PMZ151-152-092000-
/O.CON.PGUM.SC.Y.0055.000000T0000Z-260810T1900Z/
GUAM COASTAL WATERS-ROTA COASTAL WATERS-
336 PM CHST SUN AUG 9 2026
..SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM CHST TUESDAY
* WHAT...SEAS 8 TO 10 FEET.
* WHERE...GUAM AND ROTA COASTAL WATERS.
* WHEN...UNTIL 5 AM CHST TUESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
* ADDITIONAL DETAILS...MODERATE TO STRONG WESTERLIES PREVAIL ACROSS
THE MARIANAS AS ANOTHER RESURGENCE IN THE MONSOON BUILDS OVER THE
NORTHERN CNMI. COMBINED SEAS OF 8 TO 11 FEET ARE EXPECTED OVER THE
NEXT FEW DAYS, REMAINING HAZARDOUS TO SMALL CRAFT THROUGH AT LEAST
EARLY TUESDAY MORNING. SEAS LOOK TO FALL BELOW HAZARDOUS LEVELS
FOR GUAM AND ROTA BY MIDWEEK AS SWELLS AND WIND WAVES RELAX.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER VESSELS,
SHOULD AVOID BOATING IN HAZARDOUS CONDITIONS.
PMZ153-154-092000-
/O.CON.PGUM.SC.Y.0055.000000T0000Z-260813T0700Z/
TINIAN COASTAL WATERS-SAIPAN COASTAL WATERS-
336 PM CHST SUN AUG 9 2026
..SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM CHST THURSDAY
* WHAT...SOUTHWEST WINDS 20 TO 25 KT AND SEAS 8 TO 11 FEET.
* WHERE...TINIAN AND SAIPAN COASTAL WATERS.
* WHEN...UNTIL 5 PM CHST THURSDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
* ADDITIONAL DETAILS...MODERATE TO STRONG WESTERLIES PREVAIL ACROSS
THE MARIANAS AS ANOTHER RESURGENCE IN THE MONSOON BUILDS OVER THE
NORTHERN CNMI, LIKELY TO MAINTAIN MODERATE TO STRONG WINDS THE NEXT
SEVERAL DAYS. COMBINED SEAS OF 8 TO 11 FEET ARE EXPECTED TO
CONTINUE THROUGH MUCH OF THE COMING WEEK, REMAINING HAZARDOUS TO
SMALL CRAFT THROUGH AT LEAST THURSDAY AFTERNOON AS THE SOUTHERN
EDGE OF THE MONSOON SURGE PERSISTS OVERHEAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER VESSELS,
SHOULD AVOID BOATING IN HAZARDOUS CONDITIONS.
MONTVILA
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