Supervise children closely in such areas. Thunder, darkening clouds and changes in wind velocity and direction are indicators of an approaching storm. Avoid high observation areas, open areas, and rocky overhangs during thunderstorms. If you are caught in the open, squat with your hands on your knees, keep your head low, and wait for the storm to pass. Be prepared for all types of weather.
Unforeseen conditions can change a short hike into an unpleasant adventure.
Severe storms can impose wilderness hazards even a short distance from your car. Do not attempt to cross water filled washes. Always carry protective clothing even when the weather does not appear threatening. Leaving your pet in a parked car can be a deadly mistake. On a warm day, the temperature in a parked car can reach 160 degrees in a matter of minutes, even with partially opened windows.