(S (S (S (S (BASENP (PRP It)) (VP (VP (VBZ is) (BASENP (NN forecast))) (S (VP (TO to) (VP (VB weaken)))))) (SBAR (IN as) (S (BASENP (PRP it)) (VP (VBZ moves) (PP (IN towards) (BASENP (NNP Portugal))))))) (CONJP (COMMA ,) (CC and)) (S (VP (TO to) (VP (ADVP (RB finally)) (VP (VB become) (ADJP (JJ extratropical))))))) (PERIOD .))