Dense Fog Advisory for Lower Columbia River, North Clark County Lowlands, East Clark County Lowlands and 6 more areas

WHERE...In Oregon, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, Tualatin Valley, and West Central Willamette Valley. In Washington, East Clark County Lowlands, Inner Vancouver Metro, and North Clark County Lowlands. WHEN...For the Dense Fog Advisory, until noon PDT today. For the Frost Advisory, until 9 AM PDT this morning. IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. Low visibility could make driving conditions hazardous. ADDITIONAL DETAILS...Frost and freeze headlines are only issued through the growing season of April 1 through October 31. Therefore, frost or freeze headlines will not be issued beginning November 1, even though similar low temperatures are possible. Frost and freeze headlines will no longer be issued this growing season for the Upper Hood River Valley, southern Willamette Valley, south Washington Cascade Foothills, and north Oregon Coast Range as these locations have already experienced a hard freeze earlier in October.