... Frost advisory remains in effect from 10 PM this evening to
8 am PST Wednesday...
* temperatures... falling back into the upper 20s to mid 30s with
the coldest locations in the mid 20s early Wednesday morning.
* 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.
A frost advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.
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San Diego County Inland Valleys Severe Watches & Warnings NOAA Weather Radio
Watches & Warnings
Issued: 12:58 PM PST Feb. 20, 2018 – National Weather Service