Hey guys, since the spate of deaths in the alps in winter there are a bunch of new resources regarding ice and snow / avalanche conditions. Namely http://www.snowsensebeta.org Thats a good place to start. Also http://www.perisher.com.au/weather-cams/weather-reports/cross-country-report with the blue lake report:
Cold conditions with minus 10C overnight and snow in the gullies with snow predominant. Some ice but quite limited with recent new snowfalls. Weather over past 2-3 weeks has meant solid conditions as often happens early in winter, so very good climbing. Present weather system will ensure "expedition" like conditions. A bit of a trudge to get to Illawong still and will only get better with more snow to access Blue Lake but climbing conditions will be good and worthy.