Madalrõhualad
Madalrõhualad, often referred to as low-pressure systems, are areas where atmospheric pressure is significantly lower than that of the surrounding region. These systems are a fundamental component of weather patterns and are primarily associated with the movement of air masses. Within a madalrõhuala, air generally rises, cools, and condenses, leading to the formation of clouds and precipitation. This rising air also causes a surface divergence, meaning air flows away from the center of the low at the surface.
In the Northern Hemisphere, madalrõhualad are characterized by a counter-clockwise circulation of winds around the center