Temperature Prediction Europe

Above is the temperature prediction at a height of 2m. Picture Source Wetterzentrale

Picture Source Wetterzentrale

The above chart shows the predicted air temperature at 850 hPa Geopotential height. This is equivalent to about 1500m a.s.l. (5000 ft).

Geopotential height is the altitude of a layer in the atmosphere. It is often used to define isobaric surfaces on upper level charts. An isobaric surface can be considered as a surface of equal pressure. Isobaric surfaces are used in upper level charts where geopotential heights are contoured to decribe the upper level features. These charts are typically produced at standard levels such as 850hPa, 700hPa, 500hPa etc. In additional to geopotential height, these can charts are also used to display a variety of parameters such as streamlines, vorticity, moisture, temperature and so on.

The graph is sourced via Wetterzentrale using the American Global Forecast System. The American GFS (global Forecast System) model is identical to the earlier AVN/MRF, only it has a higher resolution and is run 4 times a day out to 384h in the future. The weather center maps use the 0, 6, 12 and 18 UTC data and are normally around 5, 11, 17 and 23 UTC finished.

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