In the present paper, a synoptic-statistical forecasting method for the
motion of a tropical wave over the Caribbean Sea is presented which took into account
results from Sosa(1991) as well as practical shortnesses shown by them. Samples were
widened, new predictors were selected, more powerful statistical programs were used and a
forecasting equations system was obtained which was significant at 5% and 1%. On the other
hand, a CLIPER type method was obtained as a first approximation, which may be applied
even at times when no aerologic information is available. Both methods improve that of
1991 in more than 70% when statistical tests were applied to measure their skills.
