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(9:00 a.m.) September 11, 2001: Northern Vigilance Operation Canceled; False Blips Purged from Radar Screens

2001-09-11

A soldier monitors a NORAD radar screen.A soldier monitors a NORAD radar screen. [Source: National War College]For the past two days, NORAD has had fighters deployed to Alaska and Northern Canada. They are there for a real-world maneuver called Operation Northern Vigilance, tasked with monitoring a Russian air force exercise being conducted in the Russian Arctic all this week (see September 9-11, 2001). [NORAD, 9/9/2001] At its operations center deep inside Cheyenne Mountain, Colorado, NORAD is also reportedly at “full ‘battle staff’ levels for a major annual exercise that tests every facet of the organization.” Canadian Captain Mike Jellinek is one hour into his shift, overseeing the operations center, when he is contacted by NORAD’s Northeast Air Defense Sector (NEADS), based in Rome, NY: The FAA believes there is a hijacking in progress and is asking NORAD for support. As the Toronto Star reports, “In a flash, Operation Northern Vigilance is called off. Any simulated information, what’s known as an ‘inject,’ is purged from the screens.” [Toronto Star, 12/9/2001] NORAD has the capacity to inject simulated material, including mass attacks, during exercises, “as though it was being sensed for the first time by a radar site.” [US Department of Defense, 1/14/1999] However, Northern Vigilance is a military operation, not a training exercise. [NORAD, 9/9/2001; US Congress, 3/11/2005] So presumably the “simulated information” is part of a NORAD exercise currently taking place, such as Vigilant Guardian (see (6:30 a.m.) September 11, 2001). Therefore, many minutes into the real 9/11 attacks, there may have been false radar blips causing confusion among NORAD personnel. Additional details, such as whose radar screens have false blips and over what duration, are unknown. The Russians, after seeing the attacks on New York and Washington on television, will quickly communicate that they are canceling their Russian Arctic exercise. [Toronto Star, 12/9/2001; National Post, 10/19/2002]