Weather4D sur Mac M1

We have been talking about it since 2020 in the Facebook group of Weather4D users, and often in the support, Weather4D Routing & Navigation now works on Mac with M1 processors, with the system MacOS 11.x ("Big Sur" and following). Simply connect the Mac to a GPS receiver or a NMEA gateway via Wi-Fi or USB to receive the position and navigation data from the instruments.. Read more …

SHOM removes facsimiles from UK charts

With the latest update of the SHOM charts portfolio on 16 September, 2021,Geogarage announces the removal of 18 facsimile charts from British charts covering, mainly, the south coast of England and Gibraltar. These areas are now only covered by the British Admiralty portfolio. (UKHO).

Indeed, SHOM recently announced (¹) rationalization of its catalog of nautical charts, onwards September 2021, by the deletion of many foreign charts reproduced under historical reciprocity agreements with some foreign hydrographic services. Read more …

Are GRIB files consistently optimistic ?

This question has been asked regularly, but until now I had never wanted to publicly give my opinion on the subject so as not to offend anyone and especially not to create unnecessary controversy. But by dint of doing it during my training, why not express it openly ?

My opinion, forged by observation and a long professional experience in pleasure boating (¹), is that this assertion of the systematic optimism of the GRIB forecasts regarding wind force, which unfortunately continues, no longer has a reason to be, and has not been verified in fact for some time. Read more …

Bad weather for iNavX [Update]

What I had been planning for a long time has finally happened : iNavX lost Navionics cartography ! 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 : purchase of the application by NavX Studio (¹), acquisition of Navionics by Garmin (²), generalization of the annual chart subscription policy (³)… Read more …

Alternative weather models

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 the meteorological services, all countries included. Applications like XyGrib, LuckGrib, SailGrib, Weather4D and others, offer a selection of atmospheric and oceanic models, up to 25 weather models and 15 wave and current models for Weather4D in example. But there are always others that can usefully complement the standard offerings of these applications.. Read more …