All flights that would take off at 8am on Wednesday are delayed. This applies to three departures towards Arlanda, one towards Bromma and a charter flight to Rhodes.

- It is very boring but the weather we are not on. It is too much fog to start, says Tormund Anusäter, operations manager at Umeå airport.

The delays may affect further air traffic during the day.

- It has consequences everywhere and at the same time we cannot know when the fog lightens so we can lift, says Anusäter.

When air traffic can return to normal schedule is still unclear.