Grimsvötn blows? Or clouds?

Is this what I think it is? Inside each of the red circles is a small grey smudge first observed around 3:00 (2:00 UTC) and growing in length. In the case of both the highlighted smudges the point of origin appears to have stayed static, unlike the lighter smudge to the right of the circles, which appears to be a cloud tracking slightly west of due south.

This may be a combination of wishful thinking and poor satellite imagery, or it could be the real deal. Grimsvötn and that active patch Northeast of Langjökull may have just blown their stacks, or I'm mistaken and it's some kind of anomalous cloud formation. Will watch the situation for the next couple of hours to see how, or if, it develops further. Image sourced from here.

Update: Nope. Looks like just plain old workaday cloud formation.