Planes coming in to SFO

During a rain like this (thank God) I've noticed that the planes are noisier. I used to think it was because of the clouds bouncing back the sound. Recently I read a better theory, it's because the routing in a storm like this is from the South, like over my house, into the airport (SFO) instead of the more normal approach from the North over the bay.

Do they change the takeoff direction too? That would be good for my buddy Bonnie who gets the normal westerly takeoff right near her house. Sleep well, my dear.