Xaxero’s WindPlot is an
easy-to-use yet powerful GRIB viewer that will display most available GRIB
Reads a Grib file and displays the data
Used by thousands of sailors today.
Value added features include World Wide
bathymetric charts on the CD.
Now Supports SCATTS data !
Included on the CD is an ocean depth and land
Linux and Windows Versions Available
This new program uses computer models of the world's
weather that can be downloaded over the Internet. This data should be used with great
caution and only used in conjunction with other methods of weather
information. Use of this feature is strictly at the risk of the user.
You can add in files available via e-mail or the web to superimpose wind
The data can be as small as 3 k compressed and is simple to download via a
These files are commonly referred to as GRIB files. They are primarily used
to disseminate output data from very complex computer models of the world's
The GRIB file is an extremely flexible and all encompassing format that is
beyond the scope of this document. Suffice to say that WindPlot reads in a
very small subset of that data that pertains to surface wind velocity and
Publicly available data is put out primarily by the USA NOAA service.
NOAA has several computer models that it uses for forecasting but only two
of these models are relevant to this software. The two models are "Global
Forecasting System GFS" and "MMAB Operational Wave Model (wwave3)".
GFS is extremely complex. The program models virtually every aspect of
global meteorology. The wind data output from this model has quite often
been suspect. More preferable is the (MMAB or wwave3). This a computer model
designed to predict wave height, direction, and time period. In order to
compute this data, it forecasts the surface speed and direction. Practical
experience with this data set has shown it is extremely accurate in a marine
environment in most cases.
Internet download sites where relevant GRIB files can be downloaded from