“Nopha ” means blast
Nopha : a place mentioned only in (Numbers 21:30) in the remarkable song apparently composed by the Amorites after their conquest of Heshbon from the Moabites, and therefore of an earlier date than the Israelite invasion. It is named with Dibon and Medeba, and was possibly in the neighborhood of Heshbon. A name very similar to Nophah is Nobah, which is twice mentioned. Ewald decides that Nophah is identical with the latter of these.