What does it mean if the sky is deep orange at night?

I live in California, and it's currently 10:30 pm and it's supposed to be pitch black. However, it's cloudy; and the sky is a rich orange color with a tint of pink. What does this mean? A big storm? Something weird? Have you experienced this? If so, what happens? I've never seen it before, and I was wondering. Sorry, I know this is a health app, but I didn't know where else to ask. Thanks!