View this artwork by appointment, at Tate Britain's Prints and Drawings Rooms
Drawn with the page turned horizontally, this is perhaps part of a sequence that includes the drawings on folio 106 recto and 127 verso opposite (D04123, D04146; Turner Bequest LXIX 107, 128a). The technique, a bold and fluid pen line with hatching, is to be found in other drawings in this book, for example the figure studies on folios 19 recto–22 recto (D04013–D04016), and in the studies of Stonehenge on folios 79 recto and 80 verso (D04090, D04092).
It is possible, therefore, that this cloudscape was envisaged as part of a historical subject. See also the study of sun and clouds in pencil and white chalk on folio 12 recto (D04006), and those in pencil and white gouache on folios 126 recto and 127 verso opposite (D04144, D04146; Turner Bequest LXIX 127, 128a).