Kansas saw two deadly crashes over the weekend ... snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid ...

Kansas, Nebraska, Missouri and Iowa will have ... Obviously this isn’t the first polar vortex episode of the winter, but it looks to be the most severe.” A stretched polar vortex like ...

Data from a polar vortex splitting during 2002’s Southern Hemisphere sudden warming event helps expand models to accommodate ...

The polar vortex of ultra-cold air usually stays penned ... widespread heavy snow was likely between central Kansas and Indiana, especially along and north of Interstate 70. Part of the interstate ...

It is not, however, the second coming of a polar vortex, a phrase the National Weather Service's Chicago office tweeted earlier this week to describe the upcoming sweater weather. They quickly ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., threatening to dump snow on parts of Texas and Oklahoma in coming days and ...