Yield Ahead Sign
MUTCD W3-2
A yield sign is ahead; prepare to yield.
What it looks like
A yellow diamond warning sign showing a black outline of a downward-pointing yield triangle to warn of a yield sign ahead.
When you'll see it
You encounter it before a yield sign, often where the approaching intersection or merge point is not clearly visible.
What to do
Slow down and be prepared to yield the right-of-way to other traffic at the yield sign ahead.
Related signs
Source: Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition — FHWA.