  Local dwarf spheroidal galaxies (dSphs) are nearby dark-matter dominated
systems, making them excellent targets for searching for gamma rays from
particle dark matter interactions. If dark matter annihilates or decays
directly into two gamma rays (or a gamma ray and a neutral particle), a
monochromatic spectral line is created. At TeV energies, no other processes are
expected to produce spectral lines, making this a very clean indirect dark
matter search channel. With the development of event-by-event energy
reconstruction, we can now search for spectral lines with the High Altitude
Water Cherenkov (HAWC) Observatory. HAWC is a wide field of view survey
instrument located in central Mexico that observes gamma rays from <1 TeV to
>100 TeV. In this work we present results from a recent search for spectral
lines from local, dark matter dominated dwarf galaxies using 1038 days of HAWC
data. We also present updated limits on several continuum channels that were
reported in a previous publication. Our gamma-ray spectral line limits are the
most constraining obtained so far from 20 TeV to 100 TeV.
