* WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Eastern Willamette Valley, Tualatin Valley, Portland West Hills and Chehalem Mountain, West Central Willamette Valley, Benton County Lowlands, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...From noon Monday to 4 AM PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Period of highest wind speeds will occur after 4 PM Monday, especially around the Central Willamette Valley. Probability of wind gusts exceeding 45 mph ranges from 40-60%. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects such as garbage cans and other objects that can easily blow around. For more information from the National Weather Service visit www.weather.gov/portland.