AnswerGuru: We start under a blue sky
AnswerGuru: After 2 miles, we see clouds
AnswerGuru: After 5 we're in them
AnswerGuru: 10 miles = Icy Road
AnswerGuru: 15 in the thick of it
AnswerGuru: 20 = A Winter Wonderland
AnswerGuru: Arrival at a Friends House