What exploded? My car is sweating!
 

I just went to pick up my car from its winter storage and there was coolant everywhere. In total there wasn't a whole lot but it was spread around. Also the entire underneath of the car and entire engine compartment had condensation on it. I know the ground gives off moisture but I put tarps under the car and there was ALOT of moisture. The car ran ok and I didn't overheat. I was afraid that I cracked the block. Any ideas anyone?

Freeze plugs?
 

Maybe the freeze plugs in the block? I am no expert, but that would be my guess considering the car was not running. I am just giving you something to check since no one else answered you. They are on the sides of the block.

Have to agree with bad89. They are also on the back of the block.