The blog
The Mediterranean Sea has a unique configuration in the world. An enclosed maritime area of nearly two thousand nautical miles from west to east, it is only open to the Atlantic by a strait of eight nautical miles. Read more …
Update 2.2 (February 2025)
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Update Weather4D 2.0.94 Fixing potential crashes of the application in certain conditions of use.
Updated also Weather4D Routage 2.0.59
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Navigation Mac is now on Blue Sky @navigationmac.bsky.social
Definitive abandonment of X… Read more …
[January update 2025] This great app, not updated for several years, no longer works and has been removed from the Apple Store. It's a shame because I had made the French version. A similar alternative could be Celestial Navigation whose latest version 1.4 Mid-2020 date. I haven't had the opportunity to test it yet.
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Catalog update SHOM charts France / DOM-TOM and dependencies by Geogarage for Weather4D Routage & Navigation and SailGrib WR
The catalog includes 860 charts (1430 with insets)
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This important Updating the app mainly concerns the cartographic rendering of the user interface.
Update of the British charts catalogue from UKHO for Weather4D Routage & Navigation and SailGrib WR by Geogarage.
In total the UKHO catalog includes 888 charts (1646 with insets)
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2025 marks the 100 years of the broadcast of marine weather forecasts The Shipping Forecast on BBC Radio 4. This emblematic transmission, produced by the UK Met Office on behalf of MCA_media, continues to be a vital safety service for mariners along our coasts.
I had written an article at the beginning 2010 (¹) on the gradual disappearance of radio weather forecasts in France, and praised the consistency of the BBC bulletin. Fifteen years later, the marine weather forecast is still broadcast on BBC Radio 4 Long Waves at the same unchanging times. Hats off ! Read more …
Earth's magnetic north pole is rapidly moving away from the Canadian Arctic towards Siberia. NCEI scientists (¹) updated the global magnetic model (WMM) 2025.
The position of the geomagnetic North Pole is 80.8°N in latitude and 138.6° E in longitude
