The highest values of the TFP field are indicating the location of the front. One of the maxima is spreading from the Alpine region towards Balearic Islands. The second one is placed in middle Europe, over Poland and North Sea. In this case the main zone of cloudiness appears within the whole front (indicated by the TFP) and which is the situation typical for Ana cold front. Usually in the classical model of Ana CF the cloudiness appears behind the surface front but in the case where there are high upper level winds the high cloud extends downstream ahead of the surface front, leading to a TFP maximum within the cloud band.