In Antarctica, as the temperatures decline in the fall, the continent cools rapidly. This results in large pressure differences at the edge of the landmass, and leads to an increase in cyclonic or storm activity. The cyclones carry warmer moister air from the northern latitudes into the continent, though they often do not penetrate very far inland.
Blizzards are a typical Antarctic phenomenon occurring when drift snow is picked up and blown along the surface by the violent winds. Blinding conditions can result in which objects less than a 3 feet away may be invisible. Localized blizzards are caused when the surface wind sweeps up any loose snow, even if the skies above are clear and no snow is falling. A severe blizzard may last for a week at a time with winds blasting at over 100 miles per hour.