What I've been planning for a while has finally happened. : iNavX lost Navionics mapping ! It seemed obvious that the historic contract which allowed iNavX to have privileged access to Navionics cartography, since the origin of the application designed by Richard Ray in 2009, was threatened. Since then things have changed a lot : repurchase of the application by NavX Studio (¹), acquisition of Navionics by Garmin (²), generalization of the annual chart subscription policy (³)… Read more …
Category : Tutorials
How to…
Alternative weather models [Update]
[Update 29 July 2022]
For several years, forecast files in GRIB format have been widely used in meteorological applications.. The majority of forecast models have been made freely available by meteorological services, all countries included. Apps like XyGrib, LuckGrib, SailGrib, Weather4D and others, offer a selection of atmospheric and oceanic models, up to 60 Weather Models, Waves and currents for Weather4D, more than thirty models with LuckGrib, in example. But there are always others that can usefully complement the standard offerings of these applications. Read more …
Predict storms with Weather4D
In Weather4D (all versions) most weather models provide a data called CAPE.
Convective Available Potential Energy, in French : Energie potentielle de convection disponible. Behind this obscure acronym hides a powerful storm forecasting tool. CAPE is measured in Joules per kilogram of air (J/Kg) and defines the vertical buoyancy energy of a hot air particle in a colder atmosphere. In other words, vertical acceleration of the air particle will be directly related to this energy measurement. Read more …
The Logbook in Weather4D Routing & Navigation
With update 2.0.57 Entering a logbook is now available in Weather4D Routing & Navigation. Data transfer to web interface Navygatio (¹) allows logbook entries to be recorded in near-real or delayed time depending on whether or not there is an internet connection during navigation. Read more …
Weather4D and iOS LAN
From iOS/iPadOS 14.5, A new setting has appeared proposing to allow applications to access the Local area network. This option is offered when installing a new application, but is not necessarily activated if the application is already installed when the OS is updated.
Since then, Many of you are no longer able to connect certain applications (Weather4D, iNavX, aso.) Wi-Fi-connected devices : Iridium GO!®, Multiplexers, Miscellaneous NMEA gateways. To do this, you must activate this "Local network" option for the application concerned. Read more …
Weather4D Routing User Guide & Navigation
New publication of Manuels to Weather4D Routage & Navigation in French version. Warning, it is a new version to download which replaces the previous one (¹). The old guide should be removed from your library in the Apple Books app. Read more …
Navygatio : Weather4D's 5th dimension [Update]
Navygatio – Web Home Page
Weather4D Routage & Navigation brings a major novelty : The Service Navygatio (¹), a web interface which will allow to record the navigations on a server as time goes by, add photos, to share own page with relatives, compare tracks, Analyze performance, and much more to come. A real " Cloud at the unique service of Weather4D Routage & Navigation users with iOS and SailGrib WR with Android. Read more …
You said « Medicane » ?
Many sailors who cross the "Big Blue" have known for ages that, if the navigation is relatively easy, the weather represents a particularly difficult constraint to deal. Indeed, if the coasts are mostly clean and the dangers very localized, if the tides are almost insignificant, if the currents are to be considered only in well defined areas, the major difficulty comes from a capricious meteorology, difficult to forecast, which can represent a real danger by its changing moods, sudden, even rough. Read more …
Introduction to Marine Weather [2021]
The new tutorial " Introduction to Marine Weather is available on the iBook Store (¹).
A complete reworking of the originally published book in 2015, new, clearer and more readable layout in portrait mode, ful revision of the text, Updated videos and illustrations. Read more …
New major evolution of the GFS model
NOAA (¹) annouced on 22 March a major upgrade to its weather forecasting model GFS.
For the first time, the Global Forecasting System (GFS), NOAA's flagship weather forecast model (¹) will be coupled with the global wave model Wave Watch III (WW3), produced by the CMNF (Fleet Numerical Meteorology and Oceanography Center), which will extend the current forecast of waves from 7 to 16 days and improve the prediction of ocean waves forced by the atmosphere. Read more …