I’ve just provided a 2018 update to my Trinity Alps trail conditions post. The main upshot: it looks like there will not be weekly updates of the PDF file that had been created by Jim Holmes of the Weaverville Ranger Station for many years. (Jim retired.)
Instead, you can get recorded information by calling 530-623-2121 (press 1), and you can also visit the Trinity Alps Wilderness – 30th Anniversary Celebration on Facebook. In addition, there’s a new trail and road conditions report with overall less information: read it here.