Fog Layer 19 Dec 2006/00 UTC - 23 Dec 2006/12 UTC: Relative Humidity

19 Dec 2006/00 UTC

Relative Humidity develops typically, with middle troposphere drying out substantially during within the anticyclonic subsidence. The dry layer gradually extends farther down: on 22 December air above the boundary layer is extremely dry, RH less than 20 %. The advection of moisture from the south on the last day of the event is not at all so well seen with RH.