...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...South Willamette Valley, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, Tualatin Valley, Cascade Foothills of Marion and Linn Counties, Lane County Cascade Foothills, North Clark County Lowlands, Inner Vancouver Metro, and South Washington Cascade Foothills. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants. &&