[MagicRat]

Thats not hydro lock. Hydrolock is there the engine sucks up more water than can be compressed by the piston. A hydrolocked engine stops dead. Even the starter motor cannot get the engine to move.

Your car may likely have water or moisture shorting out the ignition system. After the car sits long enough for everything to dry off, it will run normally, so long as you have not killed the battery cranking it. If you have a jump-start will get you going.

What kind of car is it? Many cars, especially older ones have spark plug wires, and distributors that can be sensitive to moisture, especially if the parts get old.