[Pantone Value] YellowC/186C [Meaning] A yellow flag with red stripes warns drivers that the track surface ahead is slippery, or there is debris present. This could be as a result of a car spilling oil (or some other engine fluid), or because rain is starting to fall. Slippery runway in an area, either by water or oil. Drivers must slow down at that point. [Description] 
Yellow and red stripes
Y e l l o w
G r e e n
R e d
B l u e
W h i t e
B l a c k
C h e q u e r e d
H a l f b l a c k
B l a c k w i t h o r a n g e c i r c l e
Y e l l o w a n d r e d s t r i p e s