Bismarck, N.D., fell to -39°F, six degrees from its all-time coldest day. The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in ...
BISMARCK, N.D. — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies ... People should cover exposed skin and limit time outside to avoid frostbite ...
If you are using an iPhone or iPad, your screen will Auto-Lock after a set amount of time while playing the ... to navigate the TARDIS through the vortex. On desktop you can use a mouse.