Alert USA
weather NWS minor Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake October 19, 2026 at 12:56 AM

Frost Advisory

* 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

Local conditions in Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake may affect travel, public safety, or daily routines. Stay informed and adjust plans if conditions change.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Residents should be prepared for possible effects on travel, public safety, and daily routines while the situation remains active.

Recommended steps: stay informed via official sources; avoid non-essential travel in the area; secure outdoor items if weather is involved; check on family and neighbors.

Alert USA is tracking this developing situation and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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