Fog forecast?

[sallyjane823]

We experienced pretty severe fog all day in Saint Augustine, Florida but the weather forecast didn’t show it at all. Is this unusual? Is there some reason that fog wouldn’t be as easily forecast as rain and wind?

[Gkikas LGPZ]

@sallyjane823
For better fog forecast (especially in the case of advection fog)
you can consult "low clouds" map and "meteogram".

[idefix37]

@sallyjane823
Additionally, but I don’t know whether it brings really further information to @Gkikas-LGPZ post, you may have a look at Sounding. When the 2 curves are close together near the ground, there is a risk of fog.

However fog on seashore is not easy to predict.

[Yves70]

@sallyjane823
Predicting fog is not easy at all. A lot of parameters have to be present to see it : did it rain the day before ? What is the current humidity level ? What about the temperature profile between the ground and 100m ? Very often, this is borderline between having fog or not. Comparing the different models will help

You should also check the wind speed which is very critical. To see fog, speed must be low