I was charged with possession of marajaunna under 2 ounces and got probation but didn't show up to probation so now I have a warrant. What will happen?

You need to take out your original sentencing paperwork and carefully read them over. The Judge at the time of your sentencing spelled out what your conseqences will be if you do not successfully complete your probation. It could be more probation, jail time, or being sentenced to do the entire jail time that your original sentence called for in lieu of probation. In other words you could land yourself back in jail doing some time.

Why would you even dream of not showing up at your probation scheduled check ins?