Weather Alerts For Silverlake, WA
Frost Advisory
-# HEADLINE -------------------- FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT FRIDAY # DETAILS -------------------- WHAT Temperatures of 32 to 36 degrees will result in frost formation. WHERE Northern and Central Coast Range Valleys and Mountains of Oregon, Eastern Portland/Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, Tillamook County Coast, Central Coast of Oregon, 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 Friday. IMPACTS Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. ISSUED AT Thursday, April 16, 2026 at 8:28 PM PDT ISSUED BY National Weather Service Portland OR HEADER URGENT - WEATHER MESSAGE # 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. # AREAS AFFECTED -------------------- Cowlitz County Lowlands, Tualatin Valley, Central Coast of Oregon, Central Oregon Coast Range, Central Oregon Coast Range Lowlands, East Central Willamette Valley, East Clark County Lowlands, East Portland Metro, Lower Columbia River, North Clark County Lowlands, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, South Washington Cascade Foothills, Tillamook County Coast, West Central Willamette Valley, Willapa Hills Including the cities of Manzanita, Woodland, Mary's Peak, Stayton, Tigard, Brush Prairie, Wilson River Summit, Ridgefield, Sandy, Kelso, Castle Rock, Grand Ronde, Brooklyn, Sunset Summit, Monmouth, Molalla, Neskowin, Keizer, Skyline Drive, Silverton, Grand Ronde Indian Reservation, Alsea, Rainier, Sherwood, Newport, Scappoose, Mapleton, Hillsboro, Woodburn, Waldport, Rockcreek, Toutle, McMinnville, Battle Ground, Chehalem Mountain, Jewell, Hockinson, Amboy, Newberg, Glenwood, Alma, Clatskanie, Sylvan Hill, Kalama, Forest Grove, Florence, Tillamook, Estacada, Sheridan, Vernonia, Dallas, Fairview, Salem, Longview, Necanicum, Gresham, Boring, Washougal, Yacolt, Rockaway Beach, St. Helens, Hoskins, Wilsonville, Knappa, Pacific City, Valsetz, Camas, Lake Merwin, La Center, Troutdale, Horton, and Lincoln City
Pollen Alert
-Pollen Index: 9.3 Pollen Level: medium-high Predominant Pollen: Mulberry, Sycamore and Ash. The pollen levels for Saturday will be on the increase in the high range. This results in part from higher temperatures and the lower dewpoint.