Back in our NSSL field project days in 1989, Rich Thompson coined the term “Scud Cigar,” a.k.a. Scud Stogie, for these kinds of elongated, often rather smooth and cigar-like, low-level cloud masses. [It seemed as if outflow was all we saw storms produce for most of that year, so we got good at watching it and nicknaming its effects.] A specialized but common variety of fractocumulus, stogies form in an area of cold outflow, usually on the back-side cold pool of a multicell cluster, supercell or squall line.
29 SSW Ft. Sumner NM (5 Jun 3) Looking NNW