In the Cuyo region of Argentina (Mendoza, San Juan, San Luis and La Rioja provinces) you have a weather phenomenon called the Zonda Wind (viento zonda). My guide and I were going out for the afternoon to Ischigualasto when he asked me where my jacket was. I looked at him funny because the day was glorious, not a cloud in the sky, hot but dry and bearable. I told him that i wouldn't need a jacket,,,,,he insisted. You will thank me for it, he told me. Well sure enough, early in the afternoon came the wind, unrelenting. Though the temperature was high the wind was strong enough, bringing sand.
From May to November the zonda winds blow, usually starting in the early afternoon. At this elevation they can be strong, at higher elevations they will be much stronger. It is caused by the northeastward movements of the polar fronts. Somewhat dissipated by the Andes, the winds remain strong.
if you close your eyes sometimes you might think it is a human voice...kinda.
a disease caused by a parasite that can have severe consequences if not treated. This disease does occur in several parts of Latin America, particularly in rural areas. This is a concern in Argentina, Chile, Peru, Bolivia among others
link to CDC information sheet
there is no way presently to prevent infection (ie no vaccine)
the dry desert heat doesnt make you feel as drained as the humid heat here at home,,,,
but be very careful. Make sure you always have water and a good hat, its very hot!!!
for those of you who burn easily make very sure to use plenty of protection. after a few hours in the sun i had a magnificent tan