Severe thunderstorms are forecasted across various regions on Tuesday. In Phoenix, strong storms may produce small hail and blowing dust, with a dust advisory set from 5 p.m. to 8 p.m. Meanwhile, Denver is bracing for thunderstorms that could bring quarter-sized hail and winds up to 60 mph, all while experiencing near-record heat. A significant drop in temperatures is expected in Denver following the storm, with highs dropping nearly 20 degrees by Thursday. In Canada, severe thunderstorm watches are in effect for Mountain View and Red Deer counties, indicating potential for high winds and large hail. Conditions in southern Minnesota and the Twin Cities are also experiencing storms, with reports of damage as they taper off.