Summer came to an abrupt halt in parts of the Rocky Mountains on Tuesday as temperatures reaching into the 90s plunged about 60 degrees in less than 24 hours, with a powerful surge of cold air from Canada unleashing snow and damaging winds in several states. The roller coaster weather ripped up trees by their roots, piled up snow that shut down parts of the scenic road through Glacier National Park and knocked out power to tens of thousands. But the temperature drop is helping with wildfires in Colorado and Montana that had ballooned in hot, windy weather and forced people to flee their homes. Heat and strong winds also hit California and parts of the Pacific Northwest over the holiday weekend, igniting destructive wildfires. Snow fell in Colorado, Montana and Wyoming.
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