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LuckGrib 4.5.4

GRIB reader, viewer and downloader

Category: Weather
Price: Free
Popularity: Low
Version String: 4.5.4 (108)
Release Date: 2023-10-02
Architecture: Intel & AppleSilicon(ARM)
Minimum OS: macOS 11.5
Vendor Name: Craig McPheeters
Homepage: luckgrib.com

Version History 4.5.4 (108)

This is a small update with various small and subtle changes sprinkled around the app.

One notable addition, mainly for sailors in the USA, is the addition of support for OFS tide height data. The OFS models are high resolution regional models around the USA, which include ocean current and tide height information. There is OFS data for a variety of regions around the USA, including the Salish Sea (including Puget Sound, the San Juans and around Vancouver Island), San Francisco Bay, Tampa, Delaware, and more.


LuckGrib is a fully featured, easy to use, fast GRIB reader, viewer and downloader

LuckGrib comes with a 14 day free trial. If you are interested in studying weather and gaining access to detailed weather forecasts, download the app and give it a try

LuckGrib uses beautiful and fast graphics to give you insight and understanding into how the weather and ocean conditions will change through a forecast as well as showing you the details of what happens at any location

Weather forecast data, packaged as GRIB files, can be downloaded directly from the LuckGrib server cluster. Downloads from the server cluster are fast - you can easily explore the weather world wide using some of the best weather models available

All direct high-speed internet data downloads are free. You have immediate access to over 30 weather and ocean models

Weather models are available which contain surface conditions, wave and swell state, ocean currents as well as higher altitude information such as that found at the 850mb, 500mb and 250mb levels - these levels correspond to the low cloud level or jet stream, for example. Some of the models available are: GFS, GDPS, CMC, WW3, HRRR, RAP, NAM, NDFD, Icon-EU, Arpège, Arome, OpenWRF, RTOFS

Check the support site for additional information regarding model availability. Short videos are also available, as are tutorials and other information

'The LuckGrib viewer is elegant, fast, and functional.... a must have app for all sailors using Macs for weather work.'
—David Burch, Director of Starpath School of Navigation and author of Modern Marine Weather.

'LuckGrib…is a huge step forward in both functionality and ease of use when compared to anything else I have used.'
— John Harries, Attainable Adventure Cruising.

• download your data directly from the LuckGrib server cluster
• download data using the Offshore Data service via email or some satellite setups
• download weather and ocean data from models created by NOAA, Environment Canada, Météo-France, Deutscher Wetterdienst (DWD) in Germany and OpenWRF
• both global and regional models are available
• high resolution GRIB models are supported and displayed on their native grid (you see the actual model data, not a processed version where there is room for error)
• ensemble models have support for standard deviation and other information
• smooth transitions and animation show how the weather or ocean conditions evolve through a forecast
• instantly updated graphical and textual information as you interact with the weather models
• graphs of weather values (meteograms) at a point, along a line or along a vessels route. Meteograms are a convenient way to see trends in the weather
• support for sailors when planning a passage, during departure planning, as well as while on passage, through the points, routes and vessels features
• mark points and name them. Measure distances, simulate traveling through weather
• support for GRIB versions 1 and 2 allows you to import the widest range of information
• import GRIB files from outside sources
• access to hundreds of GRIB parameters (wind, rain, pressure, temperature, CAPE, CIN, humidity, wave information, ocean current data, vorticity, simulated radar, standard deviation, and many more)
• an internet connection is not required to view downloaded files. LuckGrib acts as a fully functional viewer when away from the internet

LuckGrib has a built in GRIB file librarian, allowing you instant access to all of your GRIB files. Switching between GRIB files is very fast, allowing you to compare the results of different models or to watch how a forecast evolves over time