In Nascar, the blue flag with a yellow stripe is shown to slower drivers on the track to let them know that faster cars are approaching. It's telling them that they should move out of the way.
Driver or Drivers, if in a group, should be aware of faster driver(s) catching up to them
I'm fairly sure it just means the there is yellow on the flag.
It could be the flag of Spain, South Vietnam, the Amazing Race flag, and I am sure there are more possibilities.
LEFT TO RIGHT
Green, blue, yellow and has a white strip.
The colors of the Swedish flag are blue and yellow.
There is no yellow and blue. It is red and white. The yellow and blue flag is from Sweden
Sweden. It is a blue flag with a yellow cross.
the colours of the swedish flag is blue and yellow
The colors on the Venezuela flag means: The yellow stands for land wealth, The blue stands for courage, and the red stands for independence from Spain. The meaning of the flag name means Freedom Fighter.
pallou Palau has a blue flag with a yellow circle.
Red, Green, Blue, Yellow and Black rings on a white field.
Kazakhstan has blue flag with yellow sun: http://en.wikipedia.org/wiki/Flag_of_Kazakhstan
3 rectangle, on top of each other, the midle rectangle is yellow the others red. the spanish flag has got a red strip and then a yellow strip (2 times the width of the red strip) and then another red strip. It has the spanish coat of arms in the middle left of the flag
the flag is blue and yellow. the christian cross is in yellow .
That flag is waved when the winner crosses the line.