From AMS Glossary
(Also spelled narboné.) In France, a wind coming from Narbonne; a north wind in the Roussillon region of southern France resembling the tramontana.
If associated with an influx of arctic air, it may be very stormy with heavy falls of rain or snow. It is especially violent in the region of Perpignan where it blows in a succession of squalls for several days. In Provence it is rarer and blows from the west. In lower Languedoc and the southern Cévennes, the narbonnais is an infrequent, mild, moist, moderate southwest wind in winter and early spring, sometimes bringing thunderstorms.