San Diego County Inland Valleys Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Frost Advisory
Issued: 4:36 PM PST Feb. 20, 2018 – National Weather Service

... Frost advisory remains in effect from 10 PM this evening to
8 am PST Wednesday...

* temperatures... lowering to the upper 20s to low 30s by 6 am
Wednesday, the coldest spots may reach the mid 20s.

* Duration... several hours of temperatures sufficient for frost
tonight with 4 to 6 hours of near freezing conditions.

* Location... coldest in low-lying wind-sheltered areas.

* Impacts... near to sub-freezing temperatures can damage crops
and sensitive vegetation, and harm outdoor pets and livestock.
Extended exposure to cold can cause hypothermia.

Precautionary/preparedness actions...

A frost advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.