752 WHUS71 KBUF 170348 MWWBUF URGENT - MARINE WEATHER MESSAGE NATIONAL WEATHER SERVICE BUFFALO NY 1148 PM EDT FRI MAR 16 2012 LEZ020-041-171100- /O.EXT.KBUF.MF.Y.0002.000000T0000Z-120317T1100Z/ UPPER NIAGARA RIVER AND BUFFALO HARBOR- LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO- 1148 PM EDT FRI MAR 16 2012 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 7 AM EDT SATURDAY... * VISIBILITIES...DOWN TO A QUARTER OF A MILE OR LESS AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE MILE. INEXPERIENCED MARINERS... ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS. && $$