For the latest updates, check out the OneBusAway twitter feed.
It snowed this morning, which means your morning commute is likely not going to be a bundle of sunshine. The first victim seems to be the Metro Tracker feed, which as of 6:50 am, seems to have gone off the rails. See http://trackerloc.kingcounty.gov/avl.jsp?id=316 for an example, where every route is either no-info or 45 minutes late+. I can't tell if the tracker is broken, or all those routes just aren't running due to adverse weather cancellations. The Metro adverse weather page only lists two routes on re-route at the moment (http://transit.metrokc.gov/up/rr/adverseweather.html), but if the last Snowpocalypse event is any indication, it's not clear this webpage is updated in a timely manner.
For a gentle introduction on why the bus tracker doesn't work well in the snow, check out http://code.google.com/p/onebusaway/wiki/AdverseWeatherReroutes.