* WHAT...South winds 15 to 25 mph with gusts up to 55 mph expected. * WHERE...Portions of south central, southwest, and western Maine and central, northern, and southern New Hampshire. * WHEN...From 8 AM to 7 PM EST Friday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds will down tree limbs and blow around unsecured objects. A few trees and power lines could be downed. The power outage threat is elevated.