NFL SCHEDULE: Release info for regular season. The 2017 NFL preseason schedule includes eight nationally televised games, including the preseason-opening Hall of Fame Game, which this year features the Cowboys and Cardinals.
Synoptic Scale Forecasting: A Primer . Weather Scales. The American Meteorology Society (AMS) defines a synoptic chart as any chart or map on which data and analysis are presented that describe the state of the atmosphere over a large area at a given moment in time.
Metonic cycle. The Metonic cycle or Enneadecaeteris in astronomy and calendar studies is a particular approximate common multiple of the year (specifically, the seasonal i.e. tropical year) and the synodic month. Nineteen tropical years differ from 235 synodic months by about 2 hours.