Kylmäilmaa

Kylmäilmaa refers to cold air masses, typically originating from polar or arctic regions. These air masses are characterized by their low temperatures and often bring about significant weather changes when they move into a region. The formation of kylmäilmaa occurs when a large body of air remains stationary over a cold surface, such as ice sheets or snow-covered land, for an extended period. During this time, the air loses heat to the surface through conduction and radiation, leading to its cooling.

When kylmäilmaa advances, it displaces warmer air, resulting in a drop in temperature, clear skies, and often strong winds. The clarity of the air is due to the dry nature of these air masses, which contain little moisture. In winter, the arrival of kylmäilmaa can cause frost, ice, and snow. In summer, it can provide a welcome respite from heatwaves. The intensity and duration of the cold weather depend on the strength and trajectory of the air mass. Meteorologists track these air masses to forecast temperature changes and potential weather events associated with their movement.