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The highest-elevation tornadoes in U.S. history prove twisters can strike almost anywhere
Tornadoes are rare in mountainous terrain, but several have been documented at elevations above 11,000 feet. Here’s a look at the highest-elevation tornadoes ever documented in U.S. history.
Dome Fire scorches hundreds of acres in Yosemite National Park, forcing popular trail closures
A wildfire in California's Yosemite National Park continued spreading Thursday, scorching more than 1,900 acres as firefighters worked to contain the flames.
What are Kelvin waves? El Niño’s hidden threat that could impact several states on the West Coast
Underwater Kelvin waves linked to El Niño can travel east along the equator before turning north along the West Coast. Learn how these waves may temporarily raise sea levels, warm nearshore waters and disrupt marine ecosystems from Baja California to the Pacific Northwest.
Tale of two coasts: Erosion threatens homes from California to North Carolina
Communities along America's shorelines are confronting a problem that is becoming increasingly difficult to ignore: coastal erosion.