Coast Redwood discoloration?

Seeing this brown discoloration throughout the entire tree of a Coast Redwoodz

And this ashy discoloration is localizes to a single branch.

Any ideas what could be causing this?

Id like to know my self I have had a similar problem I suspect it is a root problem but haven’t checked

It’s been in the 40s a few nights there, reaction to cold?

Curious as well. 40s shouldn’t bother a coastal redwood like this unless the tree was already compromised.