Atmospheric carbon dioxide levels are unprecedented over the past 800,000 years

Global climate change - April 24, 2019, 12:19:47 PM EDT

The concentration of CO2 in the atmosphere continues to steadily climb.

Latest clues to the weather pattern through mid-May

Brett Anderson - April 24, 2019, 7:48:35 AM EDT

Typical up-and-down weather pattern for much of Canada and the northern US through mid-May in terms of temperatures and precipitation

Asperitas clouds sighted in western Pennsylvania

WeatherMatrix (Jesse Ferrell) - April 23, 2019, 4:05:58 PM EDT

On the edge of thunderstorms April 23, Asperitas clouds broke out over western Pennsylvania.

Bright moon foils Lyrid meteor shower

Astronomy blog - April 22, 2019, 6:51:57 PM EDT

Crunching some numbers for the rainy (and snowy) season in the Northwest

Western US weather expert - April 22, 2019, 8:49:09 AM EDT

California warmth fades this weekend; A drier pattern overall out West

Western US weather expert - April 18, 2019, 6:01:32 AM EDT

Hurricane Maria's extreme rainfall likely enhanced by climate change

Global climate change - April 17, 2019, 12:17:57 PM EDT

Climate change played a role in Maria's extreme rainfall over Puerto Rico back in 2017.

Long-range weather pattern update

Brett Anderson - April 17, 2019, 10:34:39 AM EDT

Fairly typical springtime pattern into May.

Another round this week; More storms and flooding

Frank Strait - April 15, 2019, 9:14:06 PM EDT

More severe storms are on the way this week and some flooding problems are likely, too.