The WMO location code 17058 stands for LTFM.
Unfortunately in many data bases location 17058 is reported with wrong coordinates.
The altitudes are shown by the dotted lines. They correspond to the figures in light grey in the left side of the diagram.
So you see from the bottom 1000h, 950h, 900h, 850h....That means 1000 hPa, 950hPa, 900hPa, 850hPa... They are the mean pressure levels according to the altitude. You can get the corresponding altitude to these pressure levels on the altitude slider where the altitude is expressed in ft, m, and hPa.
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