Heavy rains have been disrupting the Spa-Francorchamps event all weekend, with Friday qualifying for tomorrow's grand prix delayed by 10 minutes.
While conditions were expected to get slightly more benign from Saturday onwards, fresh showers hit the Ardennes loop ahead of Saturday's sprint shootout, which sets the grid for the afternoon sprint race.
Thirteen minutes before the sprint shootout, which was due to start at noon local time, the start of the session was delayed a first time, awaiting a break in the conditions.
The FIA confirmed that if the sprint shootout is unable to go ahead, it will use the results from Friday qualifying to set the grid for the sprint race.
The session is due to start at 12:35pm local time.
Any grid penalties would still only be applied to the grand prix itself, meaning Red Bull's Max Verstappen would be able to start from pole despite incurring a five-place grid penalty for taking a fifth gearbox of 2023.
Haas' Kevin Magnussen would similarly be able to start from 13th instead of 16th after having impeded Ferrari's Charles Leclerc in qualifying.
Source: Autosport