Calima is a meteorological phenomenon that occurs, mostly in the Canary Islands, but also in other regions around the world, characterized by a dense and dusty weather condition that consists of a hot and dry wind carrying fine particles of sand or dust. It is caused by the prevailing winds, typically coming from the Sahara desert, which carry the particles over long distances and deposit them in the affected areas.
During a calima, the visibility is significantly reduced due to the suspended particles in the air, leading to a hazy and murky atmosphere. The fine dust particles often settle on surfaces, creating a layer of dust on cars, buildings, and vegetation.
The meteorological conditions during a calima are characterized by high temperatures and low humidity levels. The hot and dry wind can cause discomfort and breathing difficulties for individuals, especially those with respiratory issues or allergies. It can also have adverse effects on air quality and may lead to respiratory problems in the general population.
Calimas can last for several days or even weeks, depending on the strength of the wind and the amount of dust particles in the air. They are often associated with a decrease in air quality and can have implications for health, transportation, and daily activities in the affected areas.
Efforts to mitigate the impacts of calimas include advising the population to stay indoors, close windows and doors, and use air purifiers or masks to minimize the inhalation of dust particles. Additionally, authorities monitor air quality levels during calimas to provide timely information and recommendations to the public.
