Avalon Offshore

Weather Routing, Navigation, Cartography and VPP (Polars) for sailboats

Avalon Offshore is a complete weather routing and navigation application .

Avalon Offshore integrates the whole set of functions that are useful to cruisers and offshore racers; weather routing, weather, navigation with NMEA 0183 and AIS collision alarm, anchoring alert, regatta start management wit laylines, etc…

Avalon includes automatic loading of 65 weather models: NOAA GFS, Metro France Arpege,and Arome, DVD Icon, OpenWRF Skiron, …

Avalon also includes advanced functions rarely available in standard weather routing systems such as:

Bathymetric weather routing, allowing calculation of routes taking into consideration the draft of the boat.

Simultaneous comparaison of routes across different weather models, different routes options, etc…

Free use of Avalon VPP to calculate customised VPP polars for single hull boats (main sail + genoa, code 0, gennaker, spinnaker, staysail and mizzen sail.

High compression of weather data on several models (GFS, Arpege, Icon, NAM Caraïbes et USA East) enabling to reduce by up to 95% volume of data, very efficient for satellite transmission (Iridium Go, Iridium Inmarsat, etc)

Easy weather routing module (from harbor to harbor) for a quick start of the app.

Compatible with ©Navionics Boating maps without additional cost.

Interfaced with ©Navily for a quick selection of the best moorings and harbors.

2021 Prices (taxes to be added)

Avalon Offshore App: €45 (one time charge)

Weather Premium Subscription: €24, including compressed weather models for satellite transmissions

UKHO and SHOM quilted maps: from €35 to €82 (permanent use with one year of updates)