Kind of crazy I had more rain and snow than you this month! I have been on the forum since 2018-2019 and this is the first winter I beat you on snow as well. I’m sure it won’t happen again for another 10 years unless I move elsewhere.
Lets get half of normal April rain out of the way on the first day!
Thursday looks almost totally dry so this event is just tomorrow for the Seattle area.
Grand Canyon is not that far away from FLG, there are couple places nearby you should check out and one being meteor crater near Winslow off of the 40 hwy (huge comet hit the earth) and the Sunset Crater (old volcano) closer to Flagstaff. You might be driving the 40 west to Flagstaff so Meteor Crater might be a place to stop and see. Have fun on your road trip!