Category : Tutorials

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Weather4D and iOS LAN

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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 …

Navygatio : Weather4D's 5th dimension [Update]

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Navygatio - page d'accueil web

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 » ?

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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 …

New major evolution of the GFS model

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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 down to 16 days and improve the prediction of ocean waves forced by the atmosphere. Read more …

Sea state : interpret wave patterns

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In Weather4D, as generally in other applications, sea ​​state forecasts are described by ocean models. The most used is the model WW3 (Wave Watch III), published by FNMOC (Fleet Numerical Meteorology and Oceanography Center) of the US Navy, with a global model due to 7 days and resolution 1° (60NM), and a Europe model to 3 days and resolution 0.2° (12NM). Météo-France publish the models MFAUM (Wave Assimilated Model) coupled with the ARPEGE and AROME weather models with three resolutions : Global at 0.5° (30NM), Europe at 0.1° (6NM), France at 0.025° (1,5NM) with variable deadlines (¹). Read more …

MacENC is back

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MacENCx64 is now the name of the MacENC application which has just been published by its new developer NavStation.

MacENC has been completely adapted and recompiled into 64 bits for recent MacOS systems and new processors, which explains the new name. I continue to ensure the French translation. But be careful : to date Navionics cartography is no longer available. So there is no charting yet for the coasts of Europe, except ENC S-57 and S-63 available from Chartworld (see the page Digital charting). Read more …

Routing : from reality to play (episode 3)

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While, this morning of the 9th day, Hugo Boss at the top of the Vendée Globe 2020 finishes crossing the “Doldrums” at a slow trot (¹), followed by the fleet of competitors which spread out behind him to the north of the Cape Verde Islands, It is a completely different score that the leaders of the game are playing Virtual Regatta. Read more …

Routing : from game to reality (continue)

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Friday 13 November will not be a lucky day for the Vendée Globe skippers 2020 (¹). They will have to negotiate the encounter with tropical storm "Theta" which crosses their course with average winds that can reach the 40 nodes and powerful bursts. Above all, the sea will be to be feared because, strongly crossed as they passed the centre of the low pressure system, Waves may exceed 6 meters and break in a chaotic way. Read more …