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.
Most meteorologists consider synoptic analysis to include those weather features that range in size from 1,000 to 10,000 kilometers (621 to 6,213 miles). Larger features are considered to be on the planetary scale while smaller ones are classified as mesoscale.