I understand why they do this shift change business at the moment and the lack of availability for those periods.
I do agree however with your comments about fog and extend them to “low cloud in general”
In the last 4 weeks I was either affected by or heard company crew affected by:
FORECAST SCT020.
ACTUAL OVC004.
FORECAST CAVOK.
ACTUAL OVC001 250m VIS
FORECAST CAVOK.
ACTUAL 2500m VIS IN DZ.
FORECAST FOG FROM 0800Z.
ACTUAL FOG FROM 0500Z.
I’ve also noticed a pattern which seems to appear. If fog appears un-forecast then for the next few days there tends to be fog on the TAF even when no “triggers” exist.
[this bit is just a Trend I believe occurrs, I don’t have evidence to back it up]
I feel like they do a generally good job but when they get it wrong they can get it very wrong.