Snow Load - Center Column??

[NorthIdaho30]

Hello. First post!!

We are looking to construct a 30' yurt in northern Idaho. Leaning toward Pacific Yurt with the 2x6 rafter upgrade and the stud wall upgrade.

My wife is also wanting the center colume. I am not sure.
What are your thoughts??

Also, does anyone use their water catchment system in snowy areas? Thet are recommending against it, however have said some people are able to make it work.

Thanks

Any suggestions would be appreciated.