I need some help from you touring folks.

Number #1 son plans to ride from Ashland, Oregon to Omaha, Neb.(1500 miles)
He has some vague notions about long distance bike riding. He is a definite newbie. He plans on leaving sometime soon but he's not sure when.

So, here are the questions: Is it too late to cross the rocky's by bike in mid to late October? When does the snow fly? When is too late?

Any practical advice to give that son of mine would be appreciated.

Cheers in advance.

docsoc....