In North America, the only one of the four major team sports to stop play due to rain is baseball, although football and soccer can be delayed if lightning is reported in the area. Individual sports such as golf, tennis and auto racing are also subject to rainouts, in the last case because a wet racetrack poses a risk of hydroplaning for vehicles traveling at high speeds, the combination of which can be fatal. Gridiron-style football almost always plays through even the heaviest of rain or snow, only canceling, relocating or delaying a game in the event that conditions are so severe as to be unsafe for spectators to attend (most commonly in the event of a lightning storm). Ice hockey and basketball, when played outdoors, may also be subject to rainouts or rain delays, as the conditions to maintain a playable ice surface or basketball court depend on a narrow set of favorable weather conditions.