The image below is the cross-section derived from the ALADIN model along the line B, directed from south-west to north-east. It can be seen that the most humid layer is the one between 2.5 and 4 km, whereas in lower layers there is dry air on the sea side (left part of the cross-section) and moist over the land (right part of the cross-section).
white lines: potential temperature (K)
coloured : relative humidity (%)