Why has the weather been unseasonably cold in the Eastern US for the past week?
- MarkLv 78 months agoFavourite answer
A mass of cold air blew down from the Arctic Circle. 71% of North America has had unusual coldness from last Monday till Thursday.
- οικοςLv 78 months ago
Warm air in the western US has been pushing northward. That pushes the polar vortex up to the north. As if in compensation, the polar vortex got pushed southward over the central and eastern portions of the country. It's now pretty much back to normal.
- GregLv 78 months ago
Global cooling has begun.