  We investigate the non-equilibrium behavior of the $3d$ random field Ising
model at finite temperature, as an external field is increased through its
coercive field. We show by numerical simulations that the phenomenology of
avalanches -- which are sharply defined only at zero temperature -- also
persists over a significant range of finite temperatures. We analyse the main
differences between the thermal and zero-temperature systems, including an
excess of small avalanches in the thermal case, whose behaviour is consistent
with activated dynamical scaling. We also investigate the extent to which
individual avalanches at finite temperature can be traced back to parent
avalanches in the athermal system.
