Wednesday, March 25, 2015

Air masses, Global Winds and Types of Rain

The dominant air mass that impacts Haiti is maritime tropical. This is because the weather throughout majority of the year consists of sunny skies and high temperatures, however during winter months it is usually dry, warm and humid and summer's are known for having very hot, humid and stormy conditions. The global wind that mainly impacts Haiti are winds that curve to the left also known as westerly winds which flow between 30 and 60 degrees. Haiti mostly experiences orographic precipitation, this is due to its mountainous topography. Heavy rains occur mostly from March to November taking a break in July and orographic precipitation takes place because of Haiti's abundance of mountainous barriers. Haiti however also experiences convectional precipitation aswell because of the hot and humid temperatures in the summer the heat from the ground heats up the air, forcing it upwards in a rapid fashion making it lighter as it accelerates into the atmosphere causing it to condense as it reaches cooler temperatures and resulting in precipitation.

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