Western Colorado is in another stretch of hot mornings, triple-digit afternoons, and thunderstorms that can go from harmless to hazardous in a matter of minutes. Heat Sticks AroundThe Heat Advisory remains in effect through Tuesday morning for parts of the Grand Valley, Lower Yampa River Basin, and portions of eastern Utah. Slow-Moving Storms Mean Heavy RainAfternoon and evening thunderstorms will fire up again Monday and Tuesday. Read More: ICYMI: Heavy Rain Triggers Mudslide and I-70 Closure Near SiltSome storms will also produce 40 to 50 mph outflow winds, frequent lightning, and small hail. Until then, expect another round of hot afternoons, stormy evenings, and the daily reminder that monsoon season in western Colorado doesn't mess around.