The implementation of the third-generation global wave model WAVEWATCH 2.22 produces a forecast daily at 0h GMT (subtract 3h to obtain Brasilia time, 2h in summer). For forcing, this model utilizes wind fields produced by the AVN global atmospheric model of NCEP.
To find out more about the implementation of the WWATCH model at CPTEC:
More complete information about the WAVEWATCH oceanic wave model:

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