cnn-weather/environment

By CNN Meteorologists Briana Waxman and Chris Dolce (CNN) — Tropical Storm Humberto is spinning in the west-central Atlantic, but the bigger question for the United States is what’s brewing behind it. Humberto is not a direct threat to the US, but it could rapidly intensify and grow into a major hurricane this weekend as

By CNN Meteorologist Chris Dolce Tropical Storm Humberto has sprung to life in the Atlantic, and there could be a double dose of tropical trouble in the coming days: Another storm is likely to form near the Bahamas and put the East Coast on alert heading into the weekend. Newly formed Tropical Storm Humberto, the

By CNN Meteorologist Briana Waxman (CNN) — The Atlantic is suddenly buzzing with tropical activity. Hurricane Gabrielle is a strong Category 3 storm east of Bermuda, and two more potential tropical systems — one nearing the Caribbean and another farther east — could follow this week. Neither new disturbance is an immediate threat to land,

By CNN Meteorologists Derek Van Dam, Briana Waxman, Mary Gilbert (CNN) — Hurricane Gabrielle rapidly intensified in warm water in the central Atlantic far from land Monday morning, becoming the second major hurricane of the 2025 season. Major hurricanes are Category 3 or stronger. Gabrielle was a Category 4 hurricane with 140 mph winds Monday

By CNN Meteorologist Chris Dolce Deep mudslides and flash flooding hit Southern California Thursday after drenching thunderstorms fed by the moisture of former Eastern Pacific Tropical Storm Mario spread over the region. The Oak Glen, Forest Falls and Potato Canyon areas of San Bernardino County were particularly hard hit. Mud and debris flows impacted multiple

By CNN Meteorologists Mary Gilbert, Chris Dolce, CNN Tropical Storm Gabrielle is struggling to organize after it formed Wednesday in the central Atlantic Ocean and put an end to an unusual nearly three-week stretch with no storms during the peak of hurricane season. Gabrielle was churning around 700 miles east-northeast of the Caribbean’s northern Leeward

By CNN Meteorologist Chris Dolce, Matt Stiles, CNN Hand in hand with brilliant foliage, fall delivers the first signs of winter to much of the United States — but the seasons are changing, and not as they normally do. The fall season is heating up as the world warms due to fossil fuel pollution, and

By CNN Meteorologist Briana Waxman (CNN) — For a moment, it seemed like a blast from the past: a plume over Mount St. Helens on Tuesday looked like the volcano might be erupting again. But fortunately, this was not an eruption — just a wind-whipped encore decades in the making. According to the US Geological

By CNN Meteorologist Briana Waxman (CNN) — Anyone who’s drinking hot pumpkin spice lattes in a chunky sweater may need to rein it in for a little while. The crisp weather many in the United States enjoyed over the last week or two was just a sneak peek of fall: Late summer heat is making

By CNN Meteorologist Chris Dolce Atlantic hurricane season has hit a September speed bump. The season’s peak will pass this week with no active storms for the first time in nearly a decade. June is when the six-month-long season begins, but the true bulk of hurricane activity occurs from mid-August through September and into the