…DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM AKDT THIS MORNING… * WHAT…Visibility one quarter mile or less in dense fog. * WHERE…Eastern Chichagof Island, Eastern Baranof Island and Southern Admiralty Island and Inner Channels from Kupreanof Island to Etolin Island. This includes the communities of Wrangell, Petersburg, Angoon, Hoonah, and Tenakee Springs.