Last time we went for a check-up for Jim's eyes in DF, I SWORE to him that I saw Popocateptl fuming. He was unconvinced. Later I read in the papers that indeed, the volcano was spewing forth steam (en español, exhalaciones). And a few days later than that, it actually spewed forth flame. People in Puebla were sweeping ash from the streets.
The volcano observers maintain their watch status at 3, or yellow, and haven't raised it for several weeks, but they haven't lowered it, either.
Here are photos from Aristegui Noticias on the 22 of May. The one on the right looks exactly like what I saw. The one on the left is from a different perspective:
We head for Mexico City again this upcoming week so I can renew my passport. I will bring my camera and see if it is at all possible to take a picture through the bus window.