CNN-Weather/Environment

Jack Frost is taking over the northern US for the holiday weekend, delivering heavy snowfall, plummeting temperatures, and a white Christmas to the Pacific Northwest. The northern cold stops short of the southern US, where balmy springlike temperatures will likely break records. An atmospheric river event along the West Coast is packing moisture into the

By Tyler Mauldin, Judson Jones and Hannah Gard, CNN This holiday weekend is a tale of two Christmases: Heavy snow, rain and wind are forecast for the entire US West Coast, while potentially record-breaking warmth will toast the South. Out West, a warmer system will bring snowfall Thursday to the highest elevations before a much

By Tyler Mauldin and Judson Jones, CNN Meteorologists Santa is bringing the gift of another atmospheric river event to the parched US West Coast this week, with heavy snow and rain and windy conditions predicted in spots from Canada to Mexico. The first, warmer storm system will unfold Wednesday into Thursday, keeping snow to the

By Judson Jones, CNN Meteorologist It is supposed to be the Christmas we all get back together with our families, and if you are one of the estimated 109 million Americans taking to the sky or highway to return home for Christmas week, it should be mostly hassle-free. A few travel woes are expected this

By Allison Chinchar, CNN Meteorologist Thanks to multiple atmospheric river events, average snowpack in California has gone from 18% to 98% in just two weeks. “Increases in snowpack of this size are not common, but also not unprecedented,” Julie Kalansky, deputy director of operations for the Center for Western Weather and Water Extremes (CW3E), explained.

By Taylor Ward, CNN Meteorologist Typhoon Rai is rapidly strengthening east of the southern Philippines and may be on the verge of becoming a super typhoon. The storm is on track to slam the southern and central portions of the country Thursday. Rai currently has sustained winds of 215 kph (130 mph), making it the

By Steve Almasy, Brandon Miller, Amy Simonson and Amanda Watts, CNN An intense storm system moving from the Rockies into the Plains is producing severe weather, tornadoes and extreme fire danger while also bringing widespread damaging winds on Wednesday. In Minnesota, the National Weather Service office in the Twin Cities said there was a tornado

By Pedram Javaheri and Derek Van Dam, CNN Meteorologists The first tornado watch of the day has been issued for parts of the Midwest as record December heat surges and fuels severe weather across the central US on Wednesday, creating hurricane-force winds, potentially strong overnight tornadoes and an extreme fire threat. “Another historical weather day