Synoptic Scale

The typical weather map scale that shows features such as high- and low-pressure areas and fronts over a distance spanning a continent. Also called the cyclonic scale. Typically ranging on the scale of 1000 to 2500 kilometers.

Synoptic-scale The scale of the high- and low-pressure systems of the lower atmosphere which typical dimensions range approximately from 1000 to 2500 kilometers (synoptic-scale circulation).

The spatial scale of the migratory high and low pressure systems of the lower troposphere, with wavelengths of 1000 to 2500 km.