Why all this rain? Blame a strong ‘atmospheric river’ known as the ‘pineapple express’

Is the atmospheric river bad? The LA Times included a quote from UCLA IoES climate scientist Daniel Swain to answer their question: “This storm concerns me at least as much as the January 9th storm¬†and perhaps somewhat more given the higher expected rain totals, broader region affected, and the potential… to stall out somewhere inopportune.”