Los Angeles County residents in several areas are under a frost advisory until 9 a.m. Saturday, issued by the National Weather Service (NWS) at 1:07 a.m. The advisory warns of temperatures as low as 32 degrees, potentially leading to frost formation.
Affected Areas
The following locations are included in the frost advisory: Santa Clarita Valley, Calabasas/Agoura Hills, San Fernando Valley, Santa Susana Mountains, Ojai Valley, Central Ventura County Valleys, and Southeastern Ventura County Valleys.
The NWS cautions that frost “could harm sensitive outdoor vegetation,” and that uncovered plants “may be killed.” Residents are advised to take steps to protect tender plants from the cold.
Preparing for Frost
According to the NWS, covering sensitive plants before sunset can help retain heat. Alternatively, moving plants indoors overnight is also recommended. Frost advisories are issued when conditions – including temperature, wind, and sky cover – are conducive to frost development, particularly when temperatures reach 36 degrees or lower.
In some cases, frost can be severe enough to be considered a ‘killing frost,’ ending the growing season.
Frequently Asked Questions
What areas are affected by the frost advisory?
The frost advisory includes the Santa Clarita Valley, Calabasas/Agoura Hills, San Fernando Valley, Santa Susana Mountains, Ojai Valley, Central Ventura County Valleys, and Southeastern Ventura County Valleys.
What temperature will cause frost to form?
Temperatures as low as 32 degrees are expected to result in frost formation.
When are frost advisories typically issued?
Frost advisories are typically issued from May to October, but can be extended if necessary.
As temperatures fluctuate, will you be taking steps to protect your outdoor plants?
