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Climate decades: Wind direction at 1000 hPa

The following graphic shows the average of the wind direction at 1000 hPa for May 2019 decade 3. The second graphic shows the anomlies to the reference period.



Climate decades: Wind direction at 1000 hPa Climate decades: Wind direction at 1000 hPa Scale

Climate decades: Wind direction at 1000 hPa Climate decades: Wind direction at 1000 hPa Scale


Notice

The following graphic shows a high pressure area in the northern hemisphere:


Color scale of a high pressure area

A low pressure area in the northern hemisphere appears like the following graphic:


Color scale of a low pressure area

In the southern hemisphere the pressure areas are rotating in the opposite direction because the Coriolis force is inverted. So the colors are also inverted.