Boundary Layer Height

19 Dec 2006/00 UTC
Meteosat 8 Night Microphysical RGB; Boundary Layer Height in metres (yellow: height 600 metres or more; orange: height 400 m; green: 200 metres or below) .

Throughout the episode the Boundary Layer Height remains very low in the SE parts of the UK. On 22 December the BLH is everywhere in southern and Central parts of UK less than 200 metres. Only on 23 December afternoon the change can be seen: BLH increases and is 400 metres in the most SE parts of the UK.