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| Model: |
Global weather forecast model from the "Fleet Numerical Meteorology and Oceanography Center" (USA) |
| Update: |
7:00 GMT und 19:00 GMT |
| Greenwich Mean Time: |
12:00 GMT = 13:00 BST |
| Variable: |
Geopotential Height and Temperature at 500 hPa |
| Description: |
The maps show the predominant tropospheric waves (trough or ridge). They virtually control
the "weather" (wet, cold / dry, warm) and the long waves drive the smaller synoptic waves.
Thus, this upper-level chart illustrates the dynamics of our atmosphere.
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