Expect numerous showers and thunderstorms across the #GrandCanyon region through mid-week. Heavy rainfall rates from the stronger storms will be capable of producing flash flooding. Exercise caution when walking the rim during monsoon season. Viewpoints located near buildings like those in the Village and at Yavapai Geology Museum are safest, since they offer potential shelter from lightning. If you are outside and thunder roars, change your plans and go indoors! Every year people are struck by lightning at Grand Canyon.
[Image description: Summer thunderstorm during sunset. Landscape is bathed in yellow and orange light. The sky has a purple cast with bolts of lightning streaking across the sky above Grand Canyon] Photo courtesy Christian Schroll. -mq