If you were charged with a felony - appeared in court - the charge was reduced from a felony offense to a misdemeanor offense - and then you skipped out and it has been necessary to issue a warrant for your arrest; It means that by fleeing you failed to complete your part of the 'legal' bargain and the felony charge would quite likely be re-instituted and you could now be a fugitive felon.
Warrants don't "turn into" something different. When a warrant is issued it is either issued for a misdemeanor or a felony offense. It doesn't change.
Warrants don't expire because they are issued by the court and only the court can cancel them.
Under those circumstances, no.
If the offense you were found guilty of when you received your probation sentence was a felony, then your violation will be a felony warrant.
is a bench warrant a felony
No. If you have been identified by name as the perpetrator/defendant and a warrant issued for you, the warrant (especially for a felony) will not expire unless withdrawn by the judge.
Contact the Sheriff's Department (not the police department) for the COUNTY in which the person is residing and alert them to the person's current location, the county which issued the warrant and the person's name or other identifying information. If the warrant is for a felony or serious misdemeanor, the Sheriff's Department will take it more seriously. If you are reporting them for a lessor offense and the person is outside the county in which the warrant was issued, you may not get any response.
A warrant never expires unless the warrant is served & returned (you're arrested) or a judge revokes the warrant.
Only if the state it is issued in has a statute of limitations on the crime itself.
No waiting: they can go straight to a judge and have a warrant issued.
If the jurisdiction that issued the warrant entered it into the national system, it can be viewed by anyone who does a name search on you.
The warrant is enforceable in Puerto Rico. However it depends on the jurisdiction where the warrant was issued whether they will ask Puerto Rico to take action on their behalf.