Trello is running happily on AWS and all other Fog Creek services continue to run in the data center without problems.
The fuel supply at ground level is sufficient for the foreseeable future. Additional labor has been added to the bucket brigade and the building is making progress on securing a fuel pump to replace the brigade. This all suggests the generator is at little to no risk of running out of fuel.
In a pleasant development, after previous ineffective efforts at pumping water from the basement, we are now removing one foot an hour, with about 15 feet left. See squarespace's status post for similar optimism and details.
Our sysadmin and engineering teams are hard at work putting the finer details on an emergency plan to remove the servers from the Manhattan data center and install them at one in New Jersey. This will only be done in the unusual circumstance of the current data center completely failing. This is highly unlikely due to the fuel supply and prospects of a new pump. If we do need to move, it will require approximately 24 hours of downtime for FogBugz, Kiln and Copilot.
We are highly optimistic about tonight. Stay tuned for updates here and on twitter.