There are five main air masses which affect the UK as detailed by the map below. A polar continental air mass comes from eastern or north eastern Europe. It brings dry weather. As it comes from ...
The situation is due to the influence of a modified polar continental air mass located over the state of Missouri in the United States, which has created a weak high-pressure ridge in the area.
For example, the Polar Maritime Air Mass originates in the Poles and travels over the Arctic Sea, therefore it brings cold and wet weather. The Tropical Continental air mass originates in the ...