We describe a population of small, high-velocity, atomic hydrogen clouds, loops, and filaments found above and below the disk near the Galactic center. The objects have a mean radius of 15pc, velocity widths of ~14km/s, and are observed at |z| heights up to 700pc. The velocity distribution of the clouds shows no signature of Galactic rotation. We propose a scenario where the clouds are associated with an outflow from a central star-forming region at the Galactic center. We discuss the clouds as entrained material traveling at ~200km/s in a Galactic wind.

Cone search capability for table J/ApJ/770/L4/table1 (Compact clouds catalog observed in HI with the Australia Telescope Compact Array (ATCA) (table from erratum published in 2019 ApJL, 884, L27))