The Canadian Avalanche Centre (CAC), Canada’s national public avalanche safety organization, and Mountain Equipment Co-op (MEC) have developed a free iPhone app.
The CAC avalanche app provides users with avalanche bulletins, weather forecasts, incident reports, and realtime weather for seven avalanche-prone regions of British Columbia as well as links to similar information for national and provincial mountain parks in BC, Alberta, and Quebec. Info is cached to your device so you can access it when out of bounds or in areas that don't have web coverage.
Supported Regions: South Coast, BC; North Shore, BC; North Columbia, BC; South Columbia, BC; Kootenay Boundary, BC; South Rockies, BC, AB; Northwest, BC
Download the app for free at iTunes.