  Mid-infrared photometry of the Wolf-Rayet star HD 38030 in the Large
Magellanic Cloud from the NEOWISE-R mission show it to have undergone a
dust-formation episode in 2018 and the dust to have cooled in 2019-20. New
spectroscopy with the MagE spectrograph on the Magellan I Baade Telescope in
2019 and 2020 show absorption lines attributable to a companion of type near
O9.7III-IV. We found a significant shift in the radial velocity of the C IV
5801-12 blend compared with the RVs measured in 1984 and 1993. The results
combine to suggest that HD 38030 is a colliding-wind binary having short-lived
dust formation episodes, like the Galactic systems WR 140 and WR 19, but at
intervals in excess of 20 yr.
