The eastern monarch population in Mexico saw a 64% increase while populations in California were the third lowest on record.

While strong or severe turbulence -- where disturbed air pitches an aircraft violently upward or downward, creating G-forces of up to 1.5 -- is on the increase, it remains extremely rare, with only ...

Artemis II will carry NASA astronauts Reid Wiseman, Victor Glover and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen, on a 10-day journey around the far side of the moon and ...

Western heat wave shatters March records, to expand with more extremes Record-breaking heat across the western U.S. will intensify and expand eastward, bringing temperatures 15–30 degrees above normal ...

The rare superbloom that lit up Death Valley National Park in recent weeks is fading as an early-season heat wave bakes the Southwest. "Due to hot weather and high winds, many areas are now past peak, ...

March Megastorm report: AccuWeather meteorologists track severe weather threat This live event has concluded. Re-watch the steam above. A powerful "March Megastorm " is unleashing a wide range of ...

Hawaii is under a state of emergency after a powerful Kona storm brought heavy rain, wind gusts over 100 mph, widespread power outages and heavy snow to the highest summits. Outages jumped early ...

“Where the snow falls as a heavy rain near or after sunset Monday night, a quick few inches of snow can pile up over the higher terrain and create slippery travel, especially from parts of West ...

Summerlike heat dome to send Southwest temperatures soaring past 100 F A strengthening heat dome will send temperatures soaring into the 90s and past 100 degrees across the Southwest, threatening ...

Snowy views of the California park will seem like the distant past as summerlike warmth builds in parts of Yosemite in the coming days with highs in the 80s.

At some point during the storm’s evolution, its wind, rain, thunderstorms, snow or cold air could impact areas home to nearly 200 million people across the central and eastern U.S. “The storm from ...

A rapidly strengthening storm could evolve into a bomb cyclone, unleashing blizzard conditions in the Midwest and severe thunderstorms, flooding rain and damaging winds in much of the central and ...