Any canoeists here?

I just bought a canoe, an ultralight tandem model which I'll be using solo.
I was wondering what I could use for an anchor; it would almost always be in
shallow water with a soft bottom. Would a 1.5# anchor such as this do the
job?

http://www.boundarywaterscatalog.com...cfm/4,2645.htm

Also, I'm curious as to what your limit is as to wind speed. I'm thinking
maybe 10 mph or less, but just don't know.

Any comments, tips, recommendations, etc., would be welcomed.