Αn unusual phenomenon with very heavy fog covered large parts of Greece, from Crete in the south to capital Athens and Pilio in the central of the country early Saturday morning. The eerie phenomenon had Greeks cheer about the scenes as if directly from a “fairy tale.”
Καλημέρα Σάββατο, πρώτη φορά τέτοια ομίχλη!
Πρωτόγνωρη αίσθηση…
Καλό ΣΚ #ομιχλη pic.twitter.com/vlgHdgx4hH— Πολυλογάς (@georgepsal) November 6, 2021
“And suddenly the whole city of Rafina, the port, and Pikermi [South-East Attica] were covered by dense fog, like in a fairy tale!,” wrote local media rpn.gr.

Ομίχλη στου Ζωγράφου. Τρανσυλβανία γίναμε pic.twitter.com/Q7OBoiUkqB
— Grigoris Skoularikis (@SpeedyPowerman) November 6, 2021
The fog in Athens and suburbs forced some flights to deviate from destination “Athens Airport” to other cities.
Αεροδρομιο Βενιζέλος απίστευτη ομιχλη. pic.twitter.com/WH0inmd2jN
— Grigoris Alexandris (@He4btIIBFp40bLc) November 5, 2021
Traffic police was deployed to Attiki Odos highway due to the very low visibility.
Rethymno, Crete Friday afternoon via cretedoc.

Pilio, Magnisia, Central Greece, Saturday morning
Καλημέρα σε όλους…
Η ομίχλη μπαίνει απο παντού στο σπίτι…🎶 pic.twitter.com/yXPxaIHzbV— Panagrod (@Panagrod21) November 6, 2021
Syros, Cyclades, Friday
Απόκοσμη η Ερμούπολη μέσα στην ομίχλη…🌫
Καλό απόγευμα Παρασκευής🙋♀️🤗 pic.twitter.com/EFBBduhUur— eugenia rigopoulou (@eugeniarigopou2) November 5, 2021
Off the island of Syros the Coast Guard rushed to help two boats that were disoriented in the fog.
Meteorologists explained the phenomenon of “temperature reversal” when the air temperature increases locally with the altitude instead of decreasing as it normally happens, and in combination with the high humidity.
Temperature reversal plays an important role in atmospheric stability as well as in the transport and dispersion of air pollutants.
The experts said, that the Sahara Dust from North Africa currently covering Greece has nothing to do with the heavy fog, though.
#αθηνα #ομίχλη #athens #athensgreece #fog #thefog #themorningdew pic.twitter.com/gR1Syt2hFP
— THANASIS GOUNARIS (@THANASIGOUNARIS) November 6, 2021
more pictures: cnngreece, ethnos.gr, twitter

English speaking scientists refer to it as a temperature inversion, or thermal inversion, not a temperature reversal. I suspect the Greek word used can translate to either meaning. Not a criticism but it might help anybody who tries to search for more information on the subject.