Websites providing visual weather data What websites are there providing visual weather data? The question actually contains the past and future weather. The purpose is for this question is to provide a list of easy-to-access websites that give a weather enthusiast/researcher overview of the weather at a given time. Please list what models the website uses and other describing information.

Ps. I think this should be a community wiki question and answer so that the list can be updated. So feel free to edit this question too.
weather.us


If somebody is looking for free global ECMWF forecasts the above site provides a fairly complete set of links that provide information 10 days into the future. You can track the control member(which I believe is a deterministic forecast) and also the ensemble output.  In addition you can look at worldwide lightning detection sites as well as radar images of US and other selected countries. For followers of tropical meteorology  hurricane tracks of ECMWF are also available - ECMWF  cyclone tracks. 
The availability of free ECMWF forecasts comes via the courtesy of Jörg Kachelmann who owns the site.