After a road trip of a few hundred miles, I got home and my car has been sitting for a few hours and I start it up again to move it and it is making a load screeching noise, I put it into neutral to get out and look at the engine bay then the noise got louder so I just shut the car off. I looked at the belts and they look fine. Anyone know whats up?

Edit: I just started it again for my dad to hear it and the noise stoped so he said it might be the water pump or something?

 

Any smoke from under the hood? smell?

 

Neither, I did see some oil or grease, [its like yellow/clear] on were the tranny meets the engine but I think that is a separate problem.

 

Alternator belt maybe? i know mine needs to be tightened, and when it is cold it squeels like a cat being skinned