Frost Advisory
Minor · ExpectedFrom 11:00 PM Thu until 9:00 AM Fri·Issued 10:20 AM Thu Oct 22·NWS Portland OR
Frost Advisory issued October 22 at 10:20AM PDT until October 23 at 9:00AM PDT by NWS Portland OR
Details
What: For the first Frost Advisory, temperatures of 33 to 36 degrees will result in frost formation. For the second Frost Advisory, temperatures of 33 to 36 degrees will result in frost formation.
Where: In Oregon, Tualatin Valley, Central Oregon Coast Range, and Central Oregon Coast Range Lowlands. In Washington, Cowlitz County Lowlands, North Clark County Lowlands, South Washington Cascade Foothills, and Willapa Hills.
When: For the first Frost Advisory, from 11 PM this evening to 9 AM PDT Friday. For the second Frost Advisory, from 11 PM Friday to 9 AM PDT Saturday.
Impacts: Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
What to do
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, or 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: Central Oregon Coast Range Lowlands; Central Oregon Coast Range; Tualatin Valley; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; South Washington Cascade Foothills