152 WWHW70 PHFO 191330 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 330 AM HST SUN FEB 19 2006 ...DENSE FOG HAS DEVELOPED ACROSS THE SUMMITS OF THE BIG ISLAND... .A THICK LAYER OF MID LEVEL CLOUDS HAS MOVED ACROSS THE CENTRAL PACIFIC OCEAN. THIS BAND OF CLOUDINESS IS INTERSECTING THE SUMMITS OF THE BIG ISLAND ABOVE 9000 FEET IN ELEVATION. VISIBILITY WILL FREQUENTLY BE BELOW 1/4 OF A MILE THROUGH THE EARLY MORNING HOURS FOR THE SUMMITS. HIZ028-191800- /O.CON.PHFO.FG.Y.0001.000000T0000Z-060219T1800Z/ BIG ISLAND SUMMITS- 330 AM HST SUN FEB 19 2006 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM HST THIS MORNING... A DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM HST THIS MORNING FOR THE SUMMITS OF THE BIG ISLAND. VISIBILITY IS REDUCED BELOW 1/4 MILE THIS EVENING AND WILL CONTINUE THROUGH THE EARLY MORNING HOURS FOR ELEVATIONS ABOVE 9000 FEET ON THE SUMMITS. A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN... USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. $$ PROTON