Thunderstorms are frequent in Crestone and the neighboring mountains during July and August. They are usually brief and occur in late afternoon. Occasionally, there are bigger storms which result in local flooding.
Lightning is particularly dangerous on mountain peaks, but could strike anywhere. Electronic equipment may be damaged by strikes close to them. To be perfectly safe computers and televisions should be disconnected during thunderstorms. Difficult, as they are frequent, and, usually, you are lucky enough to avoid damage.