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Partly sunny and very warm
Mostly sunny and very warm
Sunny and very warm
of sunlight, then sets at
of moolight, then sets at
Yellowstone National Park's Firehole Lake Drive was closed Thursday, July 10, as portions of the roadway's asphalt melted amid the summer's recent heat wave in the Northwest. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.