vaguada betyder på engelska

thalweg▼(line that connects the lowest points in a valley or river channel)
noun
[UK: θˈalweɡ] [US: θˈælweɡ]The continuous flow of water forms thalwegs in the lower parts of the valleys. = El continuo fluir del agua forma vaguadas en las partes más bajas de los valles.

trough [troughs]▼(a linear atmospheric depression associated with a weather front)
noun
[UK: trɒf] [US: ˈtrɒf]