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Image description: USGS hydrologic technician Bob Reaves collects streamflow measurements from the cableway at the USGS streamgage on the Snake River near Moran, WY. 
Photo from the U.S. Geological Survey

Image description: USGS hydrologic technician Bob Reaves collects streamflow measurements from the cableway at the USGS streamgage on the Snake River near Moran, WY. 


Photo from the U.S. Geological Survey

Image description: This graphic shows a wobbly polar vortex configuration in comparison to a more typical, compact configuration.
Learn how this wobbly polar vortex caused the recent cold spell across the country. 
Image from NOAA.

Image description: This graphic shows a wobbly polar vortex configuration in comparison to a more typical, compact configuration.

Learn how this wobbly polar vortex caused the recent cold spell across the country.

Image from NOAA.

Image description: This is Niijima, Earth’s newest island. It formed in late November as a result of volcanic activity in the Pacific “Ring of Fire.” The island is located about 1,000 miles south of Tokyo. Learn more about this new island.Photo from NASA.

Image description: This is Niijima, Earth’s newest island. It formed in late November as a result of volcanic activity in the Pacific “Ring of Fire.”

The island is located about 1,000 miles south of Tokyo.

Learn more about this new island.

Photo from NASA.

Image description: Rudolph the Red-Nosed Reindeer isn’t just a children’s story. New research shows that some reindeer actually do have red noses. 
Read the new science from Smithsonian Magazine on what makes some reindeer noses red.
Photo from Smithsonian Magazine.

Image description: Rudolph the Red-Nosed Reindeer isn’t just a children’s story. New research shows that some reindeer actually do have red noses.

Read the new science from Smithsonian Magazine on what makes some reindeer noses red.

Photo from Smithsonian Magazine.

Image description:
From the Department of Interior:

The mixture of blowing snow and clouds creates a wintery scene on the divide in Rocky Mountain National Park - Colorado. Clouds form due to orographic lift, when air masses rise as they hit mountain ranges and condense into these low clouds that blanket the peaks. Photo: Rocky Mountain National Park. 

Image description:

From the Department of Interior:

The mixture of blowing snow and clouds creates a wintery scene on the divide in Rocky Mountain National Park - Colorado. Clouds form due to orographic lift, when air masses rise as they hit mountain ranges and condense into these low clouds that blanket the peaks.

Photo: Rocky Mountain National Park.