What is hydroplaning and when does it most commonly occur?

1. Overheating of tires on dry pavement at sustained high speed
2. Loss of tire contact with the road due to a layer of water between the tire and road surface
3. Excessive braking on dry pavement causing the vehicle to slide sideways — hydroplaning means tires ride on water, not overheating on dry roads.
4. Skidding on packed ice at very low speeds in parking lots only