That's one of my favorite roads. I have seen patchy fog, but never ridden it in a storm; should be fun!
Keep an eye far ahead out there. It has been a couple of years since Highway 1 washed into the sea, and we are probably due. This isn't a huge storm, but you never know. The last time it happened, a CHP officer and his patrol car were washed away while he was stopping traffic at the edge of the slide.