A statement on the airport's website in the morning said it was currently closed until further notice “because of the prevailing weather conditions”.
The runways reopened at 11.30am, but passengers are nevertheless advised to check with their airline to see if their flight is still scheduled for departure, since delays and cancellations are expected.
The airport said bottles of water were being handed out to people waiting in the check-in lounge, and free wi-fi was made available to everyone.
The airport was initially closed on Thursday due to heavy snow. It reopened later that day.
The weather is expected to improve on Friday afternoon.
Arrived in Geneva, which is coping with "une catastrophe monumentale" and "l'Apocalypse" according to the locals' rendering of snow chaos.— Katharina Bart (@KatharinaBart) March 1, 2018