Yellow and Red Striped Flag

The Yellow and Red Striped Flag is a warning signal in motorsport that indicates hazardous track conditions ahead that may reduce tire grip, such as oil, water, debris, or other surface changes.

Displayed by track marshals at various points around the circuit, this distinctive flag features alternating yellow and red vertical stripes. When drivers see this flag, they should exercise caution and be prepared for potentially slippery conditions without necessarily reducing speed dramatically.

Unlike the yellow flag (which requires slowing down for an incident) or the red flag (which stops the race), the yellow and red striped flag simply alerts drivers to be careful due to changing surface conditions. It's essentially motorsport's equivalent of a "slippery when wet" road sign.