Stories about: polar vortex  

Frost did not affect all Great Lakes equally, scientists determined

The energy company is aware of the cybercriminal campaign

Thanks to the energy provided by its wind farms, the state managed to avoid power outages

The image was collected by a NASA low-orbit satellite

Scientists say that this will help improve overall air travel safety

The cold snap forced millions of Americans to remain indoors

The ice formations were most likely produced by the cold snap

These atmospheric structures do not form very often

The polar vortex does not prove climate change is a hoax, White House video explains

A serious cold spell is currently affecting portions of North America

The extreme weather offers the perfect opportunities for cool T-shirt freezing experiments

The archipelago is being battered by very strong storms

This mass of cold air is responsible for the recent weather patterns