Out of trim:
The place would be frequently Fog Bound....
Errrm, you mean like LHR today?
Remember that LHR's fog problem today is due low-vis procedures and its limited capacity (operating at max even on a good day).
If this were the Thames Airport, in similar conditions, it would be able to handle all flights. (Did not see this morning's RVRs at LHR, but BRU was around 250m)
.