* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected, especially along the higher ridges. * WHERE...In North Carolina, Alleghany NC, Ashe, and Watauga Counties. In Virginia, Carroll, Floyd, and Grayson Counties. * WHEN...From 6 AM to 4 PM EDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.