It measures atmospheric pressure. When the pressure is low it means it will rain/bad weather, if the pressure is high the weather will be nice/sunny out.
Three significant landform districts make up Central America - the sloping center, the Caribbean swamps, and the Pacific beach front plain each landform locale has its very own atmosphere.
The Caribbean is comprised of around 7,000 islands encompassed by the Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico.
Its atmosphere is a tropical one. Its stormy season ordinarily happens among May and October. The bumpy districts of Central America offer cooler atmospheres.
The primary general climatic sorts of PNW are calm: both moderate and four seasons, however rugged and dry atmospheres involve a great part of the less possessed or inland regions of the locale.
A maritime atmosphere happens in most coastal regions, normally between the sea and high mountain ranges.