With the depression rapidly moving in form the Atlantic, only parts of Spain (tropical continental) and Italy (polar continental) are diagnosed as cloudfree and and a subsequent Airmass diagnoses is done. This does not change that much int he following timseteps. At 19 November around 09UTC the first sign of the RaCy in these set of Airmass Analysis is seen. The dry intrusion is found over Britain, Belgium and Northern France. It is diagnosed as polar maritim and continental. This accords well with the corresponding Airmass RGB image. The dry intrusion in the Airmass image is seen as purple. A mixture of blue (polar airmass) and red (protruding stratospheric air and low clouds).