My air conditioner blows warm air for about 15 minutes before it suddenly blows cold air. Is it my compressor?

What is your question?

My 2003 Ford ranger 3.0 will blow warm air when the air conditioner is turned on. It continues to do this for about 15 minutes and then suddenly, a burst of cold air begins to blow. It will blow cold as long as the truck runs. If truck is turned off when reaching your destination for an amount of time, this whole cycle I just described starts over when cranking vehicle back up. Could the compressor be going out?

What makes this problem better or worse?

It takes longer to come on when engine is cold

How long has your 2003 Ford Ranger had this problem?

A few weeks