CNN-weather/environment

By Aya Elamroussi and Taylor Ward, CNN (CNN) — A second and more powerful atmospheric river-fueled storm is set to bring potentially life-threatening flooding to Southern California from Sunday into next week after an earlier storm already unleashed record rainfall in some parts of the region. The second atmospheric river set to hit California within

By Aya Elamroussi and Mary Gilbert, CNN (CNN) — The first of two atmospheric rivers is unloading heavy snow at high elevations and gusty winds and soaking rainfall Thursday across a large part of California. More than 20 million people are under flood alerts as storms threaten flash flooding in cities including Los Angeles, San Diego,

By Mary Gilbert, CNN Meteorologist (CNN) — Washington, DC, is on a weather rollercoaster and there’s no getting off. Just a week after the nation’s capital got clobbered by snow and highs struggled to reach the low 30s, two of the area’s main weather reporting stations smashed records on Friday afternoon as temperatures surged to

By Mary Gilbert, CNN Meteorologist (CNN) — Impacted by dense fog Thursday morning? So were over 90 million others across the continental United States. Dense fog alerts were so extensive nationwide that they reached record levels for the third consecutive day. The alerts are issued by the National Weather Service when widespread fog is expected

By Allison Chinchar, CNN (CNN) — The iconic cone graphic used by the National Hurricane Center to depict the potential path of tropical systems will undergo a noticeable change for the upcoming hurricane season. The cone will be deemphasized over land in the continental US, with more emphasis being placed on expected impacts by showing

By Elizabeth Wolfe, Robert Shackelford and Mary Gilbert, CNN (CNN) — A multi-day siege of heavy rain and thunderstorms is raising the risk of flash flooding across the South, while freezing rain creates potentially perilous travel conditions for parts of the central US on Tuesday. Here are the latest updates:  • Heavy rain brings flash

By Elizabeth Wolfe, Robert Shackelford and Mary Gilbert, CNN (CNN) — Icy conditions are making for hazardous travel as freezing rain pelts large sections of the central US Monday. The freezing rain is being made possible by a large push of milder air slowly starting to overspread much of the winter-weary US. A barrage of

By Mary Gilbert, CNN Meteorologist (CNN) — Sick of the cold? Mother Nature has a change in store: A dramatic weather pattern change is coming next week that will flip the brutal cold on its head. Few spots in the continental US have escaped the cold over the last week. Its wind chills plunged below

By Aya Elamroussi, Sara Tonks, Paradise Afshar and Mary Gilbert, CNN (CNN) — Another round of snow is covering the Northeast Friday, triggering emergency protocols in several areas as officials warn the conditions could make for dangerous travel through the evening. More than 100 million people, nearly 30% of the US population, are under winter

By Mary Gilbert, Elizabeth Wolfe and Robert Shackelford, CNN (CNN) — Winter storms will hit both coasts before another brutal surge of cold air envelops the central and eastern United States by the weekend. At least 55 people across 10 states have died since last week after the coldest air of winter and multiple storms

By Elizabeth Wolfe and Robert Shackelford, CNN (CNN) — As a brutal Arctic blast wraps up in the eastern US, a new winter storm system is bringing freezing rain and precarious road conditions to the Pacific Northwest. Here’s the latest. • Freezing rain knocks out power: Freezing rain pelting the Pacific Northwest on Wednesday is expected

By Nouran Salahieh, Joe Sutton and Robert Shackelford, CNN (CNN) — A brutal Arctic blast is bringing record-low temperatures and life-threatening wind chills across a large swath of the United States as snow and ice spread from the South to New England and a new storm targets the Northwest with dangerous ice. Here’s the latest:

By Brandon Miller, Monica Garrett and Matt Stiles, CNN (CNN) — Iowa has held the Republican caucuses every four years since 1976 in either January or February, putting them at risk for cold, but nothing like what happened Monday. Live Coverage: Follow the latest Iowa caucus developments and results here Iowans woke up on Monday

By Nouran Salahieh, Allison Chinchar and Mary Gilbert, CNN (CNN) — A brutal and prolonged arctic blast is bringing dangerous cold to a massive swath of the US, including new areas to the south and east, while snow, ice and strong winds slam parts of the South. Here’s the latest: • Record-breaking cold for Iowa

By Allison Chinchar, CNN (CNN) — An ongoing arctic blast enveloping much of the US will set the stage for impactful snow and ice to fall in parts of the South for the first time this winter as a new storm tracks through the region. The South storm will be the fourth in the last