Car is overheating

There has been a noise coming from under my hood, like something flapping. Today my car started to overheat. The coolant got up to 275 degrees. I would pull over and let it cool down for 15 minutes, then drive a mile or so and it happened again, over and over again. There was also a slight burning smell coming from the vents and the vents only blew cold air. If I wasn't able to pull over right away a light came on that said, "Check Charging System" and white smoke would come from the engine area.

My car has 98000 miles.
My car has an automatic transmission.

– Car is overheating

Car is overheating

I was driving to work and the car overheated, opening the hood, it was steaming and coolant was spraying out of a hose near the alternator. The fan also doesn't seem to be turning on. What's the best course of action?

My car has 180000 miles.
My car has an automatic transmission.

– Car is overheating