On Monday, following the event in Youngstown, OH, the President will return to the White House to continue to monitor Hurricane Sandy, which is currently forecasted to make landfall along the Eastern seaboard late that day. As a result, the events in Northern Virginia on Monday and in Colorado Springs on Tuesday have been cancelled. Additional changes to Tuesday's schedule will be announced as warranted.
The President is being regularly updated on the storm and ongoing preparations, and he has directed his team to continue to bring all available resources to bear as state and local partners continue to prepare for the storm. FEMA has already deployed teams and has pre-staged resources to potentially affected states and areas ahead of the storm, and FEMA remains in close contact with emergency responders in states up and down the East coast to ensure there are no unmet needs. The President will continue to receive regular briefings on these efforts, and has made clear that he expects his team to continue to lean forward as Hurricane Sandy approaches.
Barack Obama, Statement by the Press Secretary on the President's Travel on Monday and Tuesday Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/302608