zyGrib for Mac now really "Apple like"

zygribzyGrib, the GRIB weather file viewer developed for Linux and well-known PC world, been ported to Mac, since version 5.0, is a real progress compared to earlier versions. Since early 2011 it is distributed in executable version for Mac (Intel) ready to use, as a package in a disk image (.dmg).

We must welcome the community of this development that makes a great work for the greater benefit of boaters. Free Software opensource, zyGrib is licensed under the GNU GPL v3. zyGrib allows the display of a large number of GRIB files, from many weather forecasting models .. It also allows automated requests generated by the application.


Nothing special : you open the disk image, you double-click the package and follow the procedure, like most Mac OS X app..


We find the Cocoa user interface, with its standard menu bar, a toolbar to organize map and data.

zygribLeft, a pannel that can be moved out with digital data available at the cursor location. On the right a color scale legend for the data representation on the map, depending on the type of data displayed. Down a slider time forecasts of the current file. That's simple, ergonomic and effective. The menu " Data > Options " has numerous display options for easy reading.

At any point on the map, an Right click opens a window called "Météotable" showing the forecasts at the place in digital form :


Requests and data server

The menu " File > Download GRIB "To select the file type and options depending on the model :

zygribFinally at any time " File > GRIB server status "Lets you know the status of the various files available on the server :


This application is far superior to the viewer GribView, alternative even for free on Mac. I only noted some working details to improve, i.e. zooming with the scroll wheel which is not linear. A small display bug which also requires uncheck and then recheck the menu " Data " some data, as pressure, for the isobars are displayed on the map. But this is relatively minor in terms of the richness of this application.

Well done !

See the website : GRIB Weather


One Reply to “zyGrib for Mac now really“ Apple like ””

  1. Just for information Zygrib and iridium.
    After installing the Mac driver for iridium you can log on without iridium particular mailbox and make a direct request from zygrib. It's not very fast and this can be expensive but it works. 1 2K file obtained in 1'26" of which 12″ d’authentification de l’iridium.

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