Yikes

It IS October, not that long until Halloween, but I was not looking out for this orange, yellow and black spider when I went over to lean against the fence and shoot a flowering vine.  It was too windy then so I went back later to the same spot...I hope she built her web during the time I was gone...She is pretty big, probably almost as big as my hand from top to bottom.  I know nothing about spiders, so leave a comment if you can tell me the name of this one.