Weather Warning

This warning affects:Benton County Lowlands, Central Oregon Coast Range, Central Oregon Coast Range Lowlands, Cowlitz County Lowlands, East Central Willamette Valley, Lane County Lowlands, Linn County Lowlands, Lower Columbia River, North Clark County Lowlands, North Oregon Coast Range, North Oregon Coast Range Lowlands, South Washington Cascade Foothills, Tualatin Valley, West Central Willamette Valley, West Hills and Chehalem Mountains and Willapa Hills. View More

Frost Advisory for North Oregon Coast Range Lowlands, Central Oregon Coast Range Lowlands, North Oregon Coast Range, Central Oregon Coast Range, Lower Columbia River, and 11 more locations

  • Issued by the National Oceanographic and Atmospheric Administration

AREAS AFFECTED : NORTH OREGON COAST RANGE LOWLANDS; CENTRAL OREGON COAST RANGE LOWLANDS; NORTH OREGON COAST RANGE; CENTRAL OREGON COAST RANGE; LOWER COLUMBIA RIVER; TUALATIN VALLEY; WEST HILLS AND CHEHALEM MOUNTAINS; WEST CENTRAL WILLAMETTE VALLEY; EAST CENTRAL WILLAMETTE VALLEY; BENTON COUNTY LOWLANDS; LINN COUNTY LOWLANDS; LANE COUNTY LOWLANDS; WILLAPA HILLS; COWLITZ COUNTY LOWLANDS; NORTH CLARK COUNTY LOWLANDS; SOUTH WASHINGTON CASCADE FOOTHILLS

* WHAT...Temperatures of 32 to 36 degrees will result in frost 
formation. 
 
* WHERE...Central and Southern Willamette Valley, Northern and 
Central Coast Range Valleys and Mountains of Oregon, Lower 
Columbia River and Cowlitz River Valleys, Tualatin Valley, 
Portland West Hills and Chehalem Mountain, Willapa Hills, North 
Clark County Lowlands, and South Washington Cascade Foothills. 
 
* WHEN...From 1 AM to 9 AM PDT Thursday. 
 
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
outdoor plants may be killed if left uncovered.