* WHAT. North winds 15 to 25 kt and steep seas of 6 to 9 ft Monday night and Tuesday morning. Conditions worsen Tuesday afternoon as winds and seas increase. North gales 25 to 35 kt with gusts up to 45 kt and very steep wind driven seas 8 to 13 ft possible. * WHERE. Initially the small craft advisory is for areas south of Gold Beach, then will include all areas Tuesday morning and early Tuesday afternoon. Gales and very steep seas are expected to affect all areas late Tuesday afternoon through Wednesday evening. * WHEN. For the Small Craft Advisory, from 11 PM this evening to 3 PM PDT Tuesday. For the Gale Watch, from Tuesday afternoon through Wednesday evening. * IMPACTS. Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are possible. * View the hazard area in detail at https://go.usa.gov/x6hks