I’ve been doing a fair bit of research for the best weather forecast for El Chalten. Especially in I’m interested in the winds higher up. After some time I ran into a page called Meteoexploration.com. This page has an overview map, detailed wind levels and bunch of other stuff. I don’t have any experience of the accuracy of this forecast but it’s all based on GFS model just like NOAA. And it sure looks pretty.
Yesterday they forecasted 200 km/h winds for the top of Cerro Torre. That’s 55m/s. It’s about the same speed as skydivers have as they’ve reached their stationary free fall speed… In comparison, the Beaufort scale for measuring storms ends at level 12 with 32 m/s. This would be a hurricane force storm. Cerro Torre has almost twice that wind speed. Now I know why there’s a mushroom on top of it.
Weather by meteoexploration