Wash. Rev. Code § 10.73.040
In all criminal actions, except capital cases in which the proof of guilt is clear or the presumption great, upon an appeal being taken from a judgment of conviction, the court in which the judgment was rendered, or a judge thereof, must, by an order entered in the journal or filed with the clerk, fix and determine the amount of bail to be required of the appellant; and the appellant shall be committed until a bond to the state of Washington in the sum so fixed be executed on his or her behalf by at least two sureties possessing the qualifications required for sureties on appeal bonds, such bond to be conditioned that the appellant shall appear whenever required, and stand to and abide by the judgment or orders of the appellate court, and any judgment and order of the superior court that may be rendered or made in pursuance thereof. If the appellant be already at large on bail, his or her sureties shall be liable to the amount of their bond, in the same manner and upon the same conditions as if they had executed the bond prescribed by this section; but the court may by order require a new bond in a larger amount or with new sureties, and may commit the appellant until the order be complied with.
RCW 10.73.040