A great site for snowfall info is below

http://bestsnow.net

and the grand daddy of all weather sites is this one. It covers world wide weather.

http://www.wunderground.com

Weather in Switzerland and surrounding countries.  Available in English, German, French and Italian. Has an interesting avalanche section for those serious about their snow.

http://www.meteosuisse.admin.ch/web/en/weather.html

El Nino discussions are below.