Arctic front

Different air masses which affect North America, as well as other continents, tend to be separated by frontal boundaries. In this illustration, the Arctic front separates Arctic from Polar air masses, while the Polar front separates Polar air from warm air masses. (cA is continental arctic; cP is continental polar; mP is maritime polar; cT is continental tropic; and mT is maritime tropic.)

The Arctic front is the semipermanent, semi-continuous weather front between the cold arctic air mass and the warmer air of the polar cell. It can also be defined as the southern boundary of the Arctic air mass.^[1] Mesoscale cyclones known as Polar lows can form along the arctic front in the wake of extratropical cyclones. Arctic air masses in their wake are shallow with a deep layer of stable air above the shallow cold cool.^[2]

References

1. Zaitseva, Nina A. "Arctic front". Arctic Climatology and Meteorology: Glossary. National Snow and Ice Data Center. Archived from the original on 26 November 2010. Retrieved 2010-11-14.
2. Erik A. Rasmussen and John Turner (2003). Polar lows: mesoscale weather systems in the polar regions. Cambridge University Press. pp. 163–172. ISBN 978-0-521-62430-5. Retrieved 2012-02-24.