Table of Contents


Polar Lows look very similar to Commas but usually occur in northern latitudes. They develop under more specific synoptic conditions when compared to the more general features of a Comma.

Common Remarks

A Polar Low is a meso-scale cyclone which normally occurs during winter time far north from the main polar front. In a northerly flow cold arctic air pours out over relatively warm seawater. Polar Lows start to develop in small baroclinic zones resulting from old Occlusions (see Back-bent Occlusion ), or arctic fronts (see Arctic Front ). Polar Lows are closely related to the Conceptual Model of a Comma. Both are mesoscale systems developing in cold polar or arctic air. Whilst both are induced by upper air disturbances such as PVA and PV, there are some distinct differences.

I. Appearance in Satellite Data

Learn about how to recognise and detect Polar Lows in satellite images.

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II. Meteorological Physical Background

Find out more about the meteorlogical and physical background of Polar Lows.

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III. Key Parameters

Learn which key parameters to use for monitoring Polar Lows.

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IV. Typical Appearance In Vertical Cross Sections

Find out the typical appearance of Polar Lows in vertical cross sections.

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V. Weather Events

Explore the weather events associated with Polar Lows.

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VI. References

Let these comprehensive documents in the references assist you in finding more about Polar Lows.

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