FZUS76 KMTR 052142 MWSMTR MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 242 PM PDT FRI APR 5 2013 ...HEIGHTENED RISK OF SHOALING... PZZ540-545-560-565-070000- POINT ARENA TO POINT REYES TO 10 NM- POINT REYES TO PIGEON POINT TO 10 NM- PIGEON POINT TO POINT PINOS TO 10 NM- POINT PINOS TO POINT PIEDRAS BLANCAS TO 10 NM- 242 PM PDT FRI APR 5 2013 A LOW AMPLITUDE LONG PERIOD WESTERLY SWELL WILL MOVE THROUGH THE COASTAL WATER TONIGHT AND SATURDAY. THE WESTERLY SWELL IS EXPECTED TO REACH 6 TO 8 FEET WITH A DOMINATE PERIOD OF 18 TO 20 SECONDS. ALTHOUGH THIS SWELL ISN'T VERY LARGE IT WILL BE POWERFUL. THIS SWELL MAY RESULT IN OCCASIONAL LARGE BREAKING WAVES ALONG NEAR SHORE REEFS...JETTIES AND ROCK OUTCROPPINGS. MARINERS ARE URGED TO USE CAUTION IN THE VICINITY OF THESE STRUCTURE AND AS ALWAYS WEAR A LIFE JACKET AT ALL TIMES. $$