They use a very long and complicated URL, but I created this one:
http://tinyurl.com/gx2x
You can also complement this channel, with a daily updated satellite photo of Mexico:
http://www.ssec.wisc.edu/data/east/latest_eastvis.jpg
Greetings from Mexico!
Montalvo
http://tupalmx.com/canal.php
(This is also, the mobile version of my weblog - A lot of useful tips and tutorials for PalmOS users - in spanish - )