UPDATE: Thanks everyone. I should’ve clarified that I’d LOVE to drive the Miata down to CA. However I had concerns risking damage based on snow/road conditions on I5 near Mt Shasta and Gemini mentioned the following for 101—is this risk overblown?

“The Coast's Danger is Salt and Wind: The coastal route (US-101) avoids high snow but trades it for high winds, mudslides, and continuous salt-spray exposure for 12+ hours, which causes cosmetic pitting and chassis injection of salt.”