Why is fog so hard to forecast?

You may always try an approach of course, maybe at 200ft you can glimpse the approach lights.

Now it’s up to 3100 BR OVC003 btw, last METAR before this one still said OVC002.

Thank you all, and it looks on FR24 as if it went more or less according to plan

Thanks especially to Sebastian and his ADLConnect app by which I could monitor METARs around my destination and note incremental improvement – almost as forecast.

Incidentally, at or below FL50, I had 3 or 4g data almost the whole way.

Classical case of MIFG

12/11 and 2KT that is fog

@Peter it does if it is advection fog

RobertL18C wrote:

advection fog

Or sea smoke.

Peter wrote:

So why doesn’t fog form when the air is moving?

Actually it does if it moves slowly 2-3 kts is what is needed.