A blocking pattern of weather is needed to bring a long cold spell and the block should preferably be a cold anticyclone
either across Scandinavia producing easterly winds or one across Greenland with northerlies," he said.
The cold anticyclone
in the Arctic Ocean and Beaufort Sea has the potential to enhance cold, dry flow into the Tulita/Norman Wells region.
The deserts of central Asia are distinguished by their exceptionally harsh climate, especially the Mongolian part of the Gobi Desert, which is exposed to cold anticyclones