Iowa is one of the flattest states and the wind is usually out of the west so you'd have a good tailwind. Only thing I can think of to support Phils thinking.
Contrary to popular belief Iowa isn't all that flat! Running I-35 south from the Minnesota line to Des Moines is relatively flat. From just south of Des Moines to the Missouri line is hilly.
I-80 west from Des Moines to the Nebraska line is very hilly. I- 80 east from Iowa City to Walcott has some hills.
As to Phil's thinking; it must be my GPS is down, no internet service, no cell phone service, computers crashed and the map blew out the window
reaction drill.
Hey, did I ever mention the time me and my good friend Jack practiced this very same scenario? We built a huge fire out of blown steer tires. When the fire was like really super hot, ya know, we like threw our cell phones, computers, Garmins, maps and underwear into the fire. Like before long everything was like the consistency of toast. Then it just turned to ash and solidified puddles of like technology or something. Except for the maps. Maps are so analog that they burned and disappeared.
So after we burned our good stuff we became clueless neophytes. A neophyte is like someone who is just starting out. Like clueless, ya know. Did I mention we became clueless? Like a newbie to expediting or life or something.
There was this hunk of a super single tire that didn't burn. So to carry our clueless
reaction drill to the
X (that's like to the extreme dude) we beat each other about the heads with this large section of rubber. To this very day I still blame Jack, God bless his soul, for my mental condition. Jack was a little over-enthusiastic with the tire scrap.
Anyway, after becoming good and clueless we tried to find some place. But we couldn't! We burned all of our really good stuff and even the not so good stuff like the maps. Finding some place was impossible. Luckily (ooh bad word, form of the word luck) some Mormons in a Marmon saw the smoke from our fire. They led us to Salt Lake City and I-80 where we were able to catch the prevailing westerlies all the way to Chicago.
Hey did I ever mention the time Jack and I practiced the blown steer tire
reaction drill?