Translation of mittelfristig

Everybody knows about the Indian summer which is famous for it strong and shiny atmosphere in the woods. That is why i wanted to see it too. So, last Saturday morning we left Boston and drove North-West.
Other tourists needed to check out first before others could check in. I wanted to see the ruins on the same day and booked a tour in this little jungle settlement and waited for the tour guide.
I had to fly to Switzerland very urgently on Sunday, now I am back. Anyway, attached is a newsletter that will be sent to the users of Vocabulix. Should there be any changes, it would be nice.