Development of a new System
While the discussed system brings heavy snowfall and strong wind in the Adriatic region another system developed over the northeast coast of Spain. The dipole in the temperature advection (blue/red lines) (Fig 3.27) indicates the developing of a new frontal wave. PVA maxima (green lines) and dry descending stratospheric air (reddish areas) in this region support the development. The track of this new system was not easy to predict, but finally the surface low took slight astonishing the 5c track. So the system did not influenced the weather in Austria much.
Over mid-east France another frontal zone due to the frontogenetic deformation zone (discussed in a previous chapter) was build up.
Figure 3.27: 10.3.2010 0UTC - MSG Airmass RGB overlay ECMWF: brown lines: ATP700; blue/red lines: TA in 700hPa; green lines: PVA in 700hPa