Winter storm closes schools, delays work on Grand Forks AFB Published Feb. 10, 2013 GRAND FORKS AIR FORCE BASE, N.D. -- Due to inclement weather conditions, Grand Forks Air Force Base personnel are authorized late reporting on Monday, Feb. 11, 2013. Personnel are to report for duty at 9:30 a.m. Storm essential personnel are to report for normal duty. Base schools and Grand Forks Central High School will be closed for the day. Call 747-SNOW (747-7669) for immediate updates on road conditions, inclement weather delays and cancellations. Courtesy of the 319th Air Base Wing Public Affairs office.