CNN-Weather/Environment

By Haley Brink, CNN Meteorologist A “regional tornado outbreak (is) possible Tuesday afternoon and evening across parts of the Lower to Mid-Mississippi Valley,” the Storm Prediction Center warned Monday morning. A Level 4 of 5, moderate risk, for severe storms has been issued by the prediction center for Tuesday afternoon and evening. The moderate risk

By Allison Chinchar and Haley Brink, CNN Meteorologists A new robust storm system moving into the Pacific Northwest Sunday is expected to spawn severe storms in the South this week. The Storm Prediction Center has issued an early forecast warning, calling for “a significant severe-weather event” across parts of the lower Mississippi River Valley Tuesday.

By Elizabeth Wolfe, CNN As well-fed holiday travelers pack their bags, hit the roads and squeeze into planes this weekend, widespread rain and snow could cause delays in the trip home. Several weather systems are forecast to trouble regions of US on Saturday and Sunday, including two in the Northeast and another pair dumping snow

By Taylor Ward, CNN Meteorologist Thanksgiving is here and whether you hit the road or took to the skies, hopefully you’ve made it to your destination with minimal headache. Thanks in large part to the relatively quiet weather so far this week, airlines have reported minimal delays and cancellations. Unfortunately, that could change in the

By Jennifer Gray, CNN meteorologist Thanksgiving is only two days away — and if you are one of the more than 50 million people packing bags now to get ready to hit the roads or skies — there may be a few weather issues that could snarl your travel plans. While much of the country

By Jennifer Gray, CNN Meteorologist It is four days until Thanksgiving and if you’re like me, you’ve got your lists: Your grocery list, your Thanksgiving to-do list, your list of football games and World Cup matches to watch, and the list of 8 things you are NOT going to say around the Thanksgiving table. If

By Susannah Cullinane, CNN Western New York state is digging out from under piles of snow at the start of the holiday week, after a historic snowstorm slammed the area over the weekend, notching a spot in the record books for Buffalo and surrounding areas. Just traces of snowfall — 1 to 3 inches —

By Allison Chinchar, CNN Meteorologist As millions of Americans gear up to travel during the Thanksgiving holiday week, many will have to deal with rain, snow, blustery winds and cold temperatures. Over 5 million people from Michigan to New York are under winter weather alerts as additional lake-effect snow is expected to fall Sunday. Meanwhile,

By Susannah Cullinane and Claire Colbert, CNN Heavy snow is expected to keep piling up in western New York state through Sunday after a historic storm saw the Buffalo area logging record snowfall totaling more than 6 feet in some areas. Just after 11 p.m. Saturday, the National Weather Service in Buffalo issued a special

By Aya Elamroussi and Mallika Kallingal, CNN A historic snowstorm is slamming western New York state Saturday with more than 6 feet of snow in some places, closing roads, triggering driving bans and canceling flights the weekend before the Thanksgiving holiday. Another round of heavy lake-effect snowfall is expected to return to the Buffalo area

By Brandon Miller and Zoe Sottile, CNN Thundersnow is exactly what the name suggests — a snowy thunderstorm. But the winter version of a thunderstorm is far less frequent than the spring and summer thunderstorms most people are used to. That is because the creation of thunder and lightning require significant amounts of atmospheric instability,