FZUS76 KSEW 210427 MWSSEW PZZ150-153-156-WAZ015-016-210600- HIGH SURF ADVISORY NATIONAL WEATHER SERVICE SEATTLE WA 930 PM PDT TUE APR 20 2004 ...THE HIGH SURF ADVISORY FOR THE NORTH AND CENTRAL COAST OF WASHINGTON HAS BEEN CANCELED... THE LARGE SWELL WHICH ARRIVED AT THE COAST EARLIER TODAY HAS SUBSIDED. THIS TREND WILL CONTINUE TONIGHT AND THE THREAT OF LARGE SWELL IS OVER. $$ GS