NEW : In a separate incident , NORAD diverted an aircraft in the vicinity of Camp David . Obama departed for Camp David on the presidential helicopter but apparently arrived by car . Marine aircraft was reportedly diverted because of bad weather . White House Press Secretary Jay Carney explained the decision not to land at Camp David was made in advance because of the weather . CNN 's weather forecast showed no evidence of stormy weather in the area .
NEW : In a separate incident , NORAD diverted an aircraft in the vicinity of Camp David . Obama departed for Camp David on the presidential helicopter but apparently arrived by car . Marine aircraft was reportedly diverted because of bad weather . CNN 's weather forecast showed no evidence of stormy weather in the area .