* WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...City and Borough of Sitka, Prince of Wales Island, and Western Kupreanof Island and Kuiu Island. * WHEN...Until 4 PM AKDT this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down. * ADDITIONAL DETAILS...Highest wind gusts are expected Thursday night into Friday. Gusts above 1000 ft may exceed 60 mph.