In early December, the jet stream brought an exceptionally vigorous surge of cold air to the Deep South and northern Gulf of Mexico. That’s how a chunk of Arctic air managed to sneak all the way down to the Gulf Coast. Sometimes, when this river of air snakes too far south, it can drag cold air with it. It’s the atmosphere’s way of balancing temperature differences. It races from regions of warmth to those that are cold. The jet stream is a river of air in the upper atmosphere. So what’s been behind all of this recent wacky winter weather? It has mountains whose high elevations poke into the cold upper atmosphere. Every state has seen snow fall over at least a portion of it. ![]() ![]() states from the start of the winter through January 4, 2018. ![]() This map shows snowfall over the lower 48 U.S.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |