#2360 "Downstream from the Col"

These clouds had an interesting story to tell. I needed to archive those cursive scripts in oil. The title contains the meteorology as well.

I was painting the anticyclonic companion on the western horizon. Those clouds were stratiform or stable in nature. Gravity waves predominated with that stability. The undulations were oriented perpendicular to the atmosphere relative winds. The higher bands of cirrostratus were what initially caught my eye. Lower altostratus was on the western horizon with the thicker layers of warm conveyor belt moisture. Faint bands of higher cirrostratus were evident as well indicating the slope of the anticyclonic vorticity tube was upward and to the southeast.

Meanwhile a deck of altocumulus was directly overhead and the curl to those swirls had the thumb of my right hand pointing upward as it should for a vorticity maximum. The science of the conceptual model matched nicely with the clouds I was observing. Every time you locate a swirl, there is another and opposite swirl nearby.

The midday lighting had turned the waters of Singleton Lake into a mixture of ultramarine and cobalt blue. The forest on the western shore of Singleton were already dark.

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