We will be in Flagstaff 11-14 March with a view to visiting Walnut Canyon NM, Sunset Crater Volcano NM, Wupatki NM and Petrified Forest NP (saw GCNP last year).
Had not thought about snow until reading another topic.
Any advice about likely impacts snow might have on what we are planning would be greatly appreciated (e.g. will we not be able to see some of these, need special car tyre attachments, etc?).