Thousands of Americans have been urged not to drive on Wednesday amid concerns over high air pollution levels. Ozone Action ...

The Hurricane Hunter planes that fly into storms can also be used to generate three-dimensional storm images, but the ...

Wildfires can damage local vegetation and change soil characteristics, making the area more vulnerable to flash floods.

Drivers in the East Valley were met with dusty conditions as monsoon activity popped up on Wednesday evening. Monday marked ...

Here is everything to know about the northern lights this week, including whether they will be visible in Arizona. The ...

Legally mandated national climate assessments disappeared this week from the federal websites built to display them, making ...

Websites that displayed legally mandated U.S. national climate assessments seem to have disappeared, making it harder for state and local governments and the public to learn what to expect in their ...

NWS Las Vegas issues a moderate HeatRisk alert and forecasts above-normal temperatures with limited shower chances.

More than 210 degrees Fahrenheit separates the highest and the lowest temperatures on record in the United States, the ...

TUCSON, Ariz. (13 News) - A dust storm rolled through southern Arizona on Monday, June 30. The National Weather Service in Tucson issued a dust storm warning around 7 p.m., but it expired at 8:15 p.m.