CNN-Weather/Environment

By Nouran Salahieh, Holly Yan and Joe Sutton, CNN Another atmospheric river is walloping storm-ravaged California, inundating cities already flooded by recent rain and forcing residents to flee — or risk not getting help if they need it. About 30 million people across the state were under flood alerts as the 11th atmospheric river to

By Elizabeth Wolfe, Dakin Andone, Monica Garrett and Christina Maxouris, CNN The season’s first nor’easter has dropped nearly 3 feet of snow over parts of the US Northeast as of Tuesday evening, piling on trees and power lines and causing power outages for tens of thousands in the frigid weather with more snow possible into

By Jennifer Gray, CNN Meteorologist Much of the Northeast and New England so far has experienced an unusually quiet winter season (aside from areas around the Great Lakes). However, it is all changing this week. We are already into meteorological spring as of March 1, which means we did not see a single nor’easter in

By Jennifer Gray and Brandon Miller, CNN Meteorologists A nor’easter is a storm that travels along the US East Coast and typically has coastal winds out of the northeast. “Nor’easters usually develop in the latitudes between Georgia and New Jersey, within 100 miles east or west of the East Coast,” the National Oceanic and Atmospheric

By Aya Elamroussi, CNN Forceful flooding that washed away roads and sent residents across parts of northern and central California fleeing their homes is expected to continue Saturday and through the weekend as more rain arrives. But Saturday is not projected to bring the torrential walls of rain that battered communities Friday, which saw bridges

By Alaa Elassar, Aya Elamroussi, Joe Sutton and Cheri Mossburg, CNN At least two people have died as the result of the ongoing storms inundating California, and nearly 10,000 residents are under evacuation orders, officials said, as intense flooding threatens several coastal counties. The powerful storms have delivered heavy rainfall across the central and northern

By Aya Elamroussi, Taylor Ward, Amy Simonson and Holly Yan, CNN Millions of Californians already hammered by ferocious snowfall were hit Thursday by a new storm, with torrential rain threatening to cause dangerous flooding and the Weather Prediction Center increasing its excessive rainfall outlook for parts of the state to a level 4 of 4.

By Jennifer Gray, CNN Meteorologist An atmospheric river is a plume of moisture that helps carry saturated air from the tropics to higher latitudes, delivering unrelenting rain or snow. Think of it as a fire hose that aims at — then drenches — a particular region. Typically 250 to 375 miles wide, atmospheric rivers can

By Aya Elamroussi, CNN Officials in California are imploring residents to prepare for a powerful storm set to lash the region with torrential rain later this week as the state continues to recover from colossal amounts of snow that trapped mountain communities. Previous severe weather was responsible for the death of one person in the

By Jennifer Gray, CNN Meteorologist For the last several weeks, high temperatures have been breaking records. Many of you may have kissed winter goodbye and already moved on to spring. But don’t get too used to the warmer weather. We could see a huge shift in temperatures next week, and this one won’t be subtle.

By Elizabeth Wolfe, Rob Shackelford, Camila Bernal and Sarah Moon, CNN After back-to-back winter storms overwhelmed many of California’s mountain communities with snow, another round of snowfall is headed to the Sierra Nevada region, while the state’s hard-hit southern San Bernardino County will get a reprieve as some residents who remain trapped by walls of

By Elizabeth Wolfe, Rob Shackelford and Alaa Elassar, CNN At least 13 people have died in multiple states due to severe weather across the country as a powerful storm system that brought golf ball-sized hail and tornadoes to the South continues to march Saturday across the Northeast. The storm spurred wind gusts strong enough to

By Joe Sutton, Holly Yan, Monica Garrett and Alaa Elassar, CNN A wide range of extreme weather is stretching across the US as storms threaten heavy snow in the Southwest and a severe weather system is bringing the triple threat of tornadoes, damaging winds and rain to the South. About 35 million people across parts

By Madison Richardson and Monica Garrett An outbreak of intense severe weather packing damaging winds and strong tornadoes looms over the Southern Plains and South on Thursday and into Friday. The storm system that brought several feet of snow to parts of California will move eastward Wednesday eventually triggering the severe outbreak expected on Thursday.