Wait a second, I just had a thought. The hours on an Eorzean clock are organized into the six elements, and further divided into Astral and Umbral. So there's two hours each day for Umbral Wind and two for Umbral Static, one in the AM and one in the PM. Has anyone checked to see if the times for those weather effects coincide on the same time each Eorzean day? That is, when they show up, which may not be every single Eorzean day.