2018 Russian Arctic cyclone season

The 2017-18 Russian Arctic cyclone season is an upcoming event in the formation of polar cyclones in Russia. The season will officially begin on December 1 and end on April 30, dates which conventionally delimit the period in which most significant polar lows form in the Russian basin. However, the season had an early start with Polar Low Anna forming on November 12.

Seasonal Forecasts
The first outlook for the 2017-18 Russian Arctic cyclone season was issued by the Cooper Meteorological Center (CMC) on November 10. They predicted a total of 9 named polar lows and 4 polar cyclones.

Polar Low Anna
An area of low pressure formed over the East Siberian Sea on November 17. The low drifted eastwards as it slowly strengthened. On November 19, the CMC upgraded the low to Polar Low Anna after sustained winds of 40 mph were found in the low. Anna gradually strengthened as it tracked eastwards, increasing in speed at a constant rate. On November 21, Anna reached peak intensity with winds of 50 mph and a minimum pressure of 998 mbar. The next day, Anna began to weaken as it left the Russian basin, entering the Alaskan basin. Advisories resumed on Polar Storm Anna by the HTMC on November 22.