Yes, that was the second digression I had planned. Galadriel was riding to Rivendell with her escort (to attend the meeting), whereas Celeborn remained in Lórien and endeavoured to organise the defences (in case of a sudden attack in the Lady's absence). I will open the meeting later in the evening.
Instead of an open-air setting, I pictured the council taking place in Elrond's residence (indoor), each of the participants being in front of one another around a banquet-like rectangular table. The weather is supposed to be quite stormy (or, probably more fitting for Rivendell, it could also be a calm yet rainy night), in order to indicate the gravity of the situation and the general anxious mood which is pervasive among the Wise; not to mention the bitterness of the debate that is soon to occur.