At the school, Max was involved in mock trials and was part of a team that placed in the top four of a statewide competition late a year ago.
Austrian media reports say the 16-year-old boy's family got into rough terrain skiing on Thursday and sent a call for help in St Anton, in the Tyrolean Alps.
The family, a German man and Australian woman and their children, lived in Australia. "The school will be open tomorrow and next week, and senior staff, counselors and I will be there to assist should you require support".More news: Ivanka Trump Is 'Being Considered' For a Different Role In The Administration
The 16-year-old was buried by the avalanche and although rescuers retrieved Max's body some 20 minutes later he couldn't be revived.
The Weather Channel reported that more light snow was expected over south-east Europe on Friday with Greece to western Turkey remaining unsettled under low pressure with a mixture of rain and snow.
"It is with deep sadness that I write to inform you that one of our students has died in an avalanche while skiing with his family", principal Shauna Colnan reportedly said in an email that was distributed.
The Australian Department of Foreign Affairs and Trade said it was aware of reports of an Australian's death in the nation.More news: IL denies permit for concert hosted by R. Kelly over security concerns
Two separate avalanches killed two German skiers in Austria's Vorarlberg mountains.
In the Czech Republic, around 9,000 households were without electricity on Thursday after heavy snow in regions bordering Germany and Austria. The Svalbard archipelago is 800 kilometres north of Norway's mainland.
Norwegian news agency NTB said 29 dwellings at the foot of the Sukkertoppen mountain were evacuated, and a school, kindergartens, a sports facility and public library closed.
Skiers have been warned to avoid any off-piste skiing, and many mountain roads have been closed because of the avalanche risk.More news: Phew! Prince William Did Not Forget Kate Middleton's 37th Birthday
The teenager was a student at Sydney's International Grammar School which has offered support to his family and fellow students.