A fresh blast of Arctic air is poised to spill across a wide swath of the United States, and the latest polar vortex map ...
A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.
A recent study in the journal Nature shows that when the summer jet stream over Europe veers north or south of its usual path, it brings weather extremes that can exacerbate epidemics, ruin crop ...