Synoptic and Mesoscale Analysis of Satellite Images - 2014

44 Minutes

Justyna Wodziczko (MetNo)

Polar lows

Published: 20 January 2015

Polar Lows are generally characterized by a severe weather in form of a strong winds, showers and occasionally heavy snow, which had sometimes resulted in lost of lives, especially on the sea area. Sometimes these systems are also connected with term Arctic Hurricane, which had been used for especially intense Polar lows. Compromising definition of Polar low is; small, but fairly intense low in maritime regions.

They are formed in cold air outbreaks, north of the polar front, mostly in the regions east of 0°E and south of 75°N. Favorable season for them is cold part of the year. By size, they are smaller than the ordinary synoptic lows (200-600 km) with the life-span typically around 18 hours, and with very intense change of weather.

In my presentation I will show you how we are forecasting Polar lows, which models we are using and of course satellite products.

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Filed under Keywords:

conceptual models, polar lows, life cycle