Synoptic scale meteorology:
In meteorology, the synoptic scale (also called the large scale or cyclonic scale) is a horizontal length scale of the order of 1,000 km (620 mi) or more.[1] This corresponds to a horizontal scale typical of mid-latitude depressions (e.g. extratropical cyclones). Most high- and low-pressure areas seen on weather maps (such as surface weather analyses) are synoptic-scale systems, driven by the location of Rossby waves in their respective hemisphere. Low-pressure areas and their related frontal zones occur on the leading edge of a trough within the Rossby wave pattern, while high-pressure areas form on the back edge of the trough. Most precipitation areas occur near frontal zones. The word synoptic is derived from the Ancient Greek word συνοπτικός (sunoptikós), meaning “seen together”. [Wikipedia]
Ryan Hall, an Internet weather analyst and owner of a lovely voice, uses synoptic frequently in his discussions of weather forecasts, such as this one here.
I’ll leave it to the reader to actually find it. Yes, I do assume his synoptic is Synoptic scale meteorology.
