This article shows the first way that poor European economic prospects weigh on American economic growth. It is obvious that when Europe does not do as well they purchase less of our products. As you can see by this very interesting map, several states have large exposures to Europe. If your economy is focused on oil and refining (Louisiana), tourism (Florida, Nevada) or financial services (New York), Europe means a lot to you. Also, states with large European manufacturing operations (Alabama) will take a hit.
If anyone knows why Utah has the most to lose from European contraction despite not being an oil, financial services, tourism or manufacturing center please comment below.