Thought I would share some pictures of the event anorak I finished about six weeks ago. I got the fabric second hand from this forum. Weight with a chunky waterproof zipper, kangaroo pocket, extra width, etc. is 11.3 oz.
I've had a chance now to wear it commuting on my bike around town and on a few hikes, and the thing is bomber! Absolutely waterproof -- so much so that I need to go back and create gaps in the stitching on my kangaroo pocket, since water collects in it. Forgot to do that first time around. Only the hood is seam-sealed right now, and I don't think I need to do the shoulders.
I didn't exactly have a pattern to make this anorak, although I did look at one pattern from Jo-Ann's in the planning stages. I have, however, already made other anoraks before out of other materials, but this turned out the best of any item of clothing I've ever made. It is cut wide to fit my proportions and give generous room for layering. The brim design on the hood was inspired by the instructions on Thru-hiker. Enjoy!