We were up there this weekend. It started clear on Saturday night / Sunday evening, but when we got around 12,000'-13,000' everything hit the fan. Everyone climbing turned around at the same time. We were seeing at least 60mph winds with ice around Ingraham flats. It was absolutely brutal. The steps my ropemate took in front of me were completely filled in by blown snow and ice by the time I walked over them 10 seconds later.
We'd probably be dead without the wands placed by the guides. Even then, we had to have a person on one end of the rope team stand at one wand and send the other end out to look for the next wand in crevassed terrain. Not fun. At one point we just had to stand still for about 15 minutes as extremely high winds and flying ice made it very painful to stand any way except with your back to the wind.
I don't think any parties summited this weekend, except for one or two at the most.