Grand Canyon National Park Visitor Center

Active Monsoon Continues, Elevated Flash Flooding & Lightning Risk

Daily thunderstorms will continue through the upcoming weekend thanks to the nonstop flow of monsoon moisture into the Western US. Eastern Colorado will be the focus on Tuesday, ahead of the action picking up in the Sierra of California on Wednesday. The Four Corners region of New Mexico, Arizona, Utah, and Colorado should prepare for a wet weekend with elevated flash flooding and lightning risk.