Hydroplaning occurs when there is standing water on a roadway. Up to 35 mph, modern tires will channel water away like the way a windshield wiper cleans the windshield. As your speed increases, your tires cannot channel the water as well. The tires may start to lose contact with the road and ride over the water like a set of water skis, possibly causing you to lose control of your vehicle. If your vehicle starts to hydroplane, don't brake; braking may cause a skid. Instead, take your foot off the accelerator and let your vehicle slow down.