Subject: The Earth 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.[ Pics List
A scale of distance used by meteorologists to describe large weather disturbances. Weather systems which span thousands to millions of square miles and which exist for several days are on the "synoptic scale". Back to the top
Large-scale weather events and systems, generally more than 200 miles across.
(or Large Scale) - Size scale referring generally to weather systems with horizontal dimensions of several hundred miles or more. Most high and low pressure areas seen on weather maps are synoptic-scale systems. Compare with mesoscale, storm-scale.
A large scale event that is usually measured in hundreds to thousands of kilometers and days to weeks; e.g. fronts, cyclones, and anticyclones.
The size of migratory high and low pressure systems in the lower troposphere that cover a horizontal area of several hundred miles or more.
Used with respect to weather systems ranging in size from several hundred kilometers to several thousand kilometers, the scale of migratory high and low pressure systems (frontal cyclones) of the lower troposphere. See cyclonic scale.