WHGM70 PGUM 041321 MWWGUA URGENT - MARINE WEATHER MESSAGE NATIONAL WEATHER SERVICE TIYAN GU 1121 PM CHST SUN JAN 4 2009 ...LARGE NORTH SWELL AFFECTING MARIANAS WATERS... .LARGE NORTH AND NORTHWEST SWELLS WILL PASS THROUGH THE MARIANAS WATERS OVER THE NEXT SEVERAL DAYS. PMZ151>154-042130- /O.CON.PGUM.SW.Y.0001.000000T0000Z-090105T2000Z/ GUAM COASTAL WATERS-ROTA COASTAL WATERS-TINIAN COASTAL WATERS- SAIPAN COASTAL WATERS- 1121 PM CHST SUN JAN 4 2009 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT UNTIL 6 AM CHST TUESDAY... A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT UNTIL 6 AM CHST TUESDAY. NORTH AND NORTHWEST SWELLS WILL MAINTAIN COMBINED SEAS NEAR 10 FEET THROUGH EARLY TUESDAY MORNING. EXERCISE CAUTION WHEN ENTERING HARBORS... ESPECIALLY ALONG NORTH AND WEST FACING SHORES. $$