Avalanche Forecasts vs Global Avy

Get real-time updates on avalanche danger levels with Avalanche Forecasts. Our app makes it easy to see current danger levels at-a-glance for every forecast center in North America. Simply select your desired timeframe (Today/Tomorrow/2 Days Out) and view color-coded danger levels on the map. Click on any region to view the detailed avalanche forecast from the source forecasting center. With support for forecasts from over 20 centers, including NWAC (Northwest US), CAIC (Colorado), UAC (Utah), SAC (Central Sierras), ESAC (Eastern Sierras), MSAC (Mount Shasta), BAC (Bridgeport, CA), BTAC (Jackson Hole), GNFAC (Bozeman), WCMAC (Missoula), FAC (Kalispell/Whitefish), SNFAC (Sun Valley), IPAC (Idaho Panhandle), PAC (McCall), MWAC (Mount Washington), KPAC (Flagstaff), TAC (Taos), WAC (NE Oregon), CNFAIC (Chugach), JAC (Juneau), AAC (Anchorage), HAIC (Haines), VAC (Valdez), Cordova, HPAC (Hatcher Pass), Avalanche Canada, Parks Canada, WhistlerBlackcomb, VIAC (Vancouver Island), and Avalanche Quebec (Chic Chocs) forecasting centers, you can stay informed no matter where you are. For feature suggestions, bug reports, or other feedback, please contact us at project-development@sierraavalanchecenter.org.

Stay safe in the backcountry with timely avalanche forecasts from multiple countries in one app. Global Avy aggregates forecasts from U.S. avalanche centers, Avalanche Canada, and Varsom (Norway) — with push notifications that tell you the moment a new forecast drops. KEY FEATURES Multi-Location Support • Save unlimited forecast locations across providers • Custom location names for easy identification • Interactive map picker for precise location selection • Hierarchical region browser for quick preset selection • Automatic zone detection using provider forecast boundaries Push Notifications • Alerts within ~15 minutes of a new forecast publishing • Per-location notifications for the areas you care about • Pre-fetches the full forecast so it's ready offline • Customizable notification preferences per location Comprehensive Forecast Data • Current avalanche danger ratings (Above Treeline, Near Treeline, Below Treeline) • Multi-day danger outlooks with elevation band breakdowns • Detailed avalanche problem discussions and summaries • Bottom line recommendations from forecasters • Forecast valid dates and expiry times • Media attachments (photos, diagrams) Integrated Weather • National Weather Service forecasts for US locations • Temperature, wind, precipitation forecasts • Zone-specific weather discussions • Combined view of avalanche and weather conditions Built for Offline Use • Aggressive caching for backcountry areas with no cell service • View cached forecasts at the trailhead or on the skin track • Automatic refresh when connection is available • Stale data is better than no data for safety-critical decisions Special Product Alerts • Avalanche Advisories, Watches, and Warnings (SPAWs) • Dedicated alert banners for exceptional avalanche conditions • Works even when the full forecast fetch fails (degraded-mode fallback) PROVIDERS • U.S. avalanche centers via the avalanche.org Forecast Center aggregator • Avalanche Canada • Varsom (Norway) • More coming — request a provider at github.com/TimZander/GlobalAvy/issues PRIVACY • No account required • No ads • Anonymous usage analytics are opt-out • Coarse-grid location used for push delivery; never linked to your identity • Crash reports are opt-out