Look closely at the "cloud" on the right side of the crater in this series of photos I took between 7:38 and 7:44 a.m. on Feb 19.
The steam cloud is small, but definitely more lively than normal clouds. Reports were of occasional lahars (mudflows) on the mountain from ash and steam melting snow. The pictures clearly show ash on top of the snow on the right hand side of the top of the mountain.
So that's my second witnessing of an active volcano (the first being Kilauea in 1997, which was, to this day, one of the coolest things I've seen). You don't see that in Utah! At least not in this epoch.