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.
Because many of the surface weather maps display weather conditions at a particular time, these charts can be considered one of the varieties of synoptic charts. The word  synoptic  is derived from the Greek words syn meaning the same or together and  optic  meaning visible; hence, seen together.