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1-16 day weather forecast Europe (GFS)

 

700 hPa height + vertical motion

animation

animation

 

Source: Wetterzentrale

 

 
Legend

White lines + values = height contours at 700 hPa, each 4 gpdam.
Colored zones = vertical motion 700 hPa each 2 hPa on which:
positive values = downwards motion, negative values = upwards motion

Useful for: negative values indicate frontal activity or instability, positive values indicate subsidence.
For the negatives values: long elliptic zones indicate frontal zones, more individual cells usually indicate zones of more structured instability like troughs, region of showers. Structured negative fields near mountains are a strong indication for active orographical precipitation. 

 

 

 

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