Only thing I can guess is maybe there as more traffic through DSM area than north of Ankeny that contributed to more snow pack? Once you get north of Ankeny it was pretty clear and about 60+ pace and on the way home almost normal driving conditions. The roads were a little better around DSM on the way back but still a big slow down once you hit Ankeny and much more snow pack still on the road. Hopefully with warmer weather the next 3 days it helps melt off what they are having a hard time scraping off and will also help the side streets and roads too.