Two yellow flags waved together signal a more serious hazard, often a car or marshals on the track itself. Drivers must significantly reduce speed, be prepared to stop, and may need to change direction. Overtaking is forbidden.
Double yellows are the strongest warning before a Virtual Safety Car or Safety Car is deployed.
Greater hazard, be prepared to stop.
When the track is partly or fully blocked, marshals are working trackside, or a stranded car is in a dangerous position.
Race RGB flashes a faster, more urgent yellow for double-waved yellows so you can tell them apart from a single yellow at a glance.
Double yellow flag FAQ
What does a double yellow flag mean in F1?
Double waved yellows mean a serious hazard ahead. Drivers must reduce speed significantly, be prepared to stop, and overtaking is banned.
What is the difference between single and double yellow?
A single yellow warns of a hazard to slow for; double yellows mean a greater danger where you must be prepared to stop.
Related flags
Feel the double yellow flag in your room
Race RGB flashes your Philips Hue, LIFX and Govee lights with live F1 flags. Free race-weekend trial.