Low pressure atmospheric systems can cause hazards because of severe weather such as blizzards and heavy snowfall, as well as high winds and heavy rainfall. This can have harsh impacts among individuals, being a lead cause of hypothermia, and frostbite, especially those vulnerable, such as the elderly. Also, these depressions can cause crops to be destroyed, and a high mortality rate throughout the spring lambing season. Extreme cold spells can have a massive negative effect on a global scale, but also in a specific country or region.
High pressure atmospheric systems affect the globe, especially the southern hemisphere, as it is nearly always continuous, although in places such as Australia and South Africa, this is broken throughout their summer. With anticyclones, there are few winds, so maps usually have circular spaced out isobars. Also, these atmospheric systems block depressions, which mean that their impacts are usually long-term, because they are constant. Weather associated with anticyclones differentiates depending on the time of year. In summer, anticyclones produce long periods of dry, hot, sunny weather, which can then cause heat waves and drought. However, in winter the