Hi Shel--Welcome to the group.
To answer your question about the number of members on this board:
Most of the Isanti Skywarn members have been around for about a year. I came along late in January of '08 and took over the website to lighten the load for Aaron. I thought this forum could be an interesting place for our group to talk about weather and stuff. So, I started this on 2/19/08. So, I think the answer to your question is a few things:
-It is just now getting to be the "right" time of year.
-Maybe some of the members aren't aware of it yet.
-Maybe some of the members aren't into computers or forums/boards.
When I asked for Aaron's opinion about it, he told me he was unsure of how many people would use it. So, it is somewhat expected. However, I think it will slowly take off (fingers crossed).
Anyway, I hope there are some forums here that you'll enjoy such as the ARES or the Ham forums. If you are into photography, please post some pics there too.
Thanks again.