Study reveals why rain and snow are hard to tell apart near freezing, showing limits of weather data and machine learning.

The highly toxic, nonnative shrub is also the culprit in other wildlife killings, which can result from unsuspecting ...

At 90% of the state average, Sierra Nevada snowpack is far better than last year. But it's nothing like the record-smashing ...

The Arctic reaches its maximum sea ice in March each year and then starts a six-month melt season. The National Snow and Ice ...

The Arctic Ocean likely had the smallest winter ice cover in 47 years of satellite records this season, with just 5.53 ...

At a week out, specific details are likely to change but Northern Californians should keep a close eye on this forecast.

A weather front that brought heavy downpours and hail to Kansas, Missouri, and Oklahoma on Saturday was growing more ...