There are different ways that you can get an arrest warrant where a court does not have to notify you. If a grand jury meets and you get indicted, then the court could issue a warrant on that indictment. This sometimes happens when the court does not have a good address or no address to serve the indictment. You can also get a warrant for failing to appear in court, either for an initial appearance or arraignment of charges. Your best bet is to contact a lawyer or call the clerks office to find out where the warrant originates from and why?