I don't know any sites in English. Of the sites in German, this one's good and very detailed for Tirol, but the Silvretta also covers parts of Vorarlberg (Austria) and Graubünden (Switzerland). The term you want for further googling is Lawinendienst (avalanche service), followed by the area.
Not sure if Google Translate would cope with all the technical terms, so maybe good to wade through the first attempt and get the important terms translated individually.
Not looking good at the moment, lots of fresh snow and high risk, but there's some high pressure coming up next week.