Weather Now

Here you can follow the current weather conditions at the ALMA Array Operations Site (AOS) at an altitude of 5,000 m (16,500 feet) and at the Operations Support Facility (OSF) at an altitude of 2,900 m (10,000 feet). At the moment, it is possible to view the AOS and the Operations Support Facility (OSF) via live webcams:

Live Webcam at the AOS -- the Array Operations Site at 5,000 m altitude

Live Webcam at the OSF -- the Operations Support Facility at 2,900 m altitude

For a more general overview of the weather and climatological conditions on Chajnantor, please see our weather page under the 'About' menu. It is also possible to determine the transparency at Chajnantor as a function of frequency for a given user-specified amount of water vapor content through our atmospheric model.