Colorado State University researchers have identified priority areas for conserving the black-tailed prairie dog in the ...

Vigilance and preparation are important, say forecasters at the NWS, as wintry weather brings hazardous travel conditions.

As Donald Trump returns to the White House, he has built the most formidable foundation of Republican electoral strength ...

Seventeen states around the U.S. reported "very high" wastewater levels of SARS-CoV-2—the virus that causes COVID-19—during ...

A combination of hotter and drier weather and more people living in places that naturally burn are making things complicated.

Researchers from Harvard T.H. Chan School of Public Health have assembled a national database with millions of multi-day ...

SWPC map of tonight's aurora forecast ... resulting in the aurora being spied as far south as Arizona, Colorado and Mexico. The northern lights are usually triggered by huge clouds of plasma ...

You can zoom in and hover over counties on the maps below ... Fire near the Colorado-Wyoming border was human-caused and burned 138 acres over the course of five days. In Arizona, 27% of ...

From Grand Canyon to Petrified Forest to Saguaro National Park, here are the best things to do in Arizona's most beautiful places.

Portions of Arizona, including metro Phoenix ... The National Weather Service in Phoenix shared this map of the areas under a freeze warning for Tuesday night into Wednesday morning.

Mary and Fred Blakley of Arizona allegedly offered veterinary medicines and unproven ultrasound procedures through a national ...