This adds yet another problem to your Thursday morning commute. A fire has shutdown all BART service between San Francisco and Oakland, causing all sorts of detours, rerouting, and general chaos for those getting over to the East Bay this morning.
In related traffic news, we should point out that a lot of people are coming into San Francisco today for the US Open and Giants game. Brace yourselves.
Update: We're being told that commuters should "avoid the Bay Bridge" and "use another bridge if possible." Good grief.
Update II: Accident has been cleared. But it's still best to avoid the Bay Bridge if at all possible.