Lewis took the photo, showing high-rises The Adelaidean and Realm Adelaide emerging into the light, from Glen Osmond.
The fog grounded all flights at Adelaide Airport.
Bureau of Meteorology senior meteorologist Brett Gage told InDaily the city was shrouded after weekend showers and a high-pressure system on Monday.
“Yesterday we had fog over mostly over the northern suburbs develop in the morning and that contracted to the sea in the afternoon and we’ve had sea fog over the Gulf of Saint Vincent’s overnight,” Gage said.
“This is quite an unusual fog today because the sea fog started moving over the water and back over the land at around 3am this morning over Brighton.
“It expanded and moved north-eastwards over the metropolitan area in the early hours of the morning – which is actually totally the opposite of how our fogs normally form.
“They normally form over the land over the north-east suburbs and you’d have a light north-easterly wind bringing the fog down over the metropolitan area.”
He said the fog only appeared two to three times a year and was expected to clear before a sunny afternoon.
Gage said the thick fog was not expected to return for the remainder of the week.
“We may see a bit of patchy fog in the early morning about the suburbs but we certainly won’t see this widespread fog that we’re getting this morning,” Gage said.
“We’ll have a front moving through Adelaide later on Saturday, so we could get a late shower on Saturday and then showers on Sunday and then easing back on Monday and Tuesday.
“Otherwise it will be dry for the working week and it will be too dry to get fogs later in the week. So, we will just have nice, warm and sunny days until later on Saturday.”
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