Geopotential height and Temperature Advection at 850 hPa

9 Aug 2005/00 UTC - Meteosat 8 IR10.8; Geopotential Height 850 hPa(solid brown), temperature advection (dashed red: cold advection, solid red: warm advection).

Cold advection at the rear of the Cold Front can be seen. A strong gradient of low level warm advection is seen near the cyclone centre in the warm sector, slightly contributing to the vertical motion and deepening of the surface low.