California Minor Frost Advisory | Effective 10/18/2026 17:56

Headline: 
Frost Advisory issued October 18 at 5:56PM PDT until October 19 at 9:00AM PDT by NWS Eureka CA
Event: 
Frost Advisory
Urgency: 
Expected
Effective: 
October 18, 2026 - 5:56pm
Expires: 
October 19, 2026 - 9:00am
Description: 
* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Northern Mendocino Interior, Southern Trinity, and Northern Lake. * WHEN...From 2 AM to 9 AM PDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Localized areas may see temperatures more briefly drop to 31
Instruction: 
Take steps now to protect tender plants from the cold.
Area Description: 
Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake
Forcast Office: 
NWS Eureka CA
Sender: 
w-nws.webmaster@noaa.gov