Winter Storm Grayson, also known as the “bomb cyclone“, that moved up the East Coast yesterday brought damaging winds and snow to parts of Maryland. In the Upper Bay, those winds and the recent full moon (causes higher than normal high tides and lower than normal low tides) pushed much of the water out of the rivers causing Tardis' dockage to have almost no water. Other areas, like the Potapsco River into Baltimore, are experiencing the lowest levels since 1989.
For Tardis, it means that the Jetdock is sitting on the bottom. But the good news, unlike the keelboat in the next slip, is that everything is upright and stable.