Sunday will feature a mostly cloudy sky, along with mountain snow showers ... just with lots of clouds. Then, a round of light snow is likely Wednesday night into Thursday. Valley areas and ...

The Moon will take a long dip into Earth's shadow Thursday night and into Friday morning, but clouds for viewers in the Pacific Northwest will block the view.

The multi-colored clouds are known as polar stratospheric clouds (PSCs) and look similar to auroras blazing in the sky. However, these rainbow clouds aren’t auroras as you might think.

Gravity wave clouds form in wave-like patterns in sky, oftentimes resembling ripples ... the atmosphere coming across an obstacle (like a mountain or cold front). These disturbances cause the ...

Puffy to wispy, barely there or dark and menacing, clouds come in many shapes and sizes. Each tells a story about what’s ...