855
WHGM70 PGUM 060611
MWWGUM
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
411 PM CHST THU AUG 6 2026
PMZ151>154-062015-
/O.EXT.PGUM.SC.Y.0055.000000T0000Z-260809T1900Z/
GUAM COASTAL WATERS-ROTA COASTAL WATERS-TINIAN COASTAL WATERS-
SAIPAN COASTAL WATERS-
411 PM CHST THU AUG 6 2026
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM CHST MONDAY
* WHAT...SEAS 9 TO 11 FEET.
* WHERE...MARIANAS COASTAL WATERS.
* WHEN...UNTIL 5 AM CHST MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
* ADDITIONAL DETAILS...GENTLE TO MODERATE WESTERLIES WILL PREVAIL
ACROSS THE MARIANAS TONIGHT, AS A WESTERLY MONSOON SURGE SLOWS.
COMBINED SEAS OF 8 TO 11 FEET ARE EXPECTED THROUGH TONIGHT, TO THEN
DROP A FOOT BRIEFLY FRIDAY, REMAINING HAZARDOUS TO SMALL CRAFT. AS
SUCH, THE SMALL CRAFT ADVISORY HAS BEEN EXTENDED. SEAS WILL RISE
ONCE AGAIN THIS WEEKEND AS THE MONSOON SURGE STRENGTHENS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID BOATING IN HAZARDOUS CONDITIONS.
WILLIAMS
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