When your vehicle starts hydroplaning, it rides on a thin layer of water between the tires and the road, losing contact and traction. This phenomenon can happen even at moderate speeds (as low as 30 mph) during heavy rain. To regain control, it's important to slow down gradually and resist the urge to brake immediately, which can exacerbate sliding. Reducing speed progressively helps the tires reconnect with the road surface safely, minimizing the risk of skidding and providing better control.