  Several trace constituents can reach saturation vapor pressure in Pluto's
present day atmosphere. As such, we describe a search for discrete could
features in Pluto's atmosphere using New Horizons data obtained on 14-15 July
2015, during the Pluto flyby closest approach. We report that Pluto's present
day atmosphere is at least largely (>99% by surface area) free of discrete
clouds. We also report a handful of features that may plausibly be clouds, all
of which were detected obliquely and at high phase observing geometry. No cloud
candidates were identified away from the terminators or in low phase
(backscattering geometry) images.
