Most often the words in the sky are pretty clear: Marry Me, perhaps, or even No Tax. But at around 12:30 pm, Canberrans were mystified by the appearance of three letters that could be urgent (NOW) or making a date for the future (MON).
But what does it mean? Commenters on the Canberra noticeboard group speculated it was everything from a date night to an abbreviation for the name Monica.
Others pointed out that when pilots are training for skywriting, NOW is a good word to practice, as connecting to O is widely used, while N and W help with joining straight lines and making quick turns for each line before wind moves the line.
There’s still other speculation that the skywriting might be connected to a protest against children in refugee detention on Manus Island. But if so, it’s a far from clear message for the vast majority of viewers.
Region Media has attempted to call several skywriting companies without success, so let us know what you think. What does the message mean?