Examples from the Web for southwesterly
Before a strong east wind, the St. Peter on that day made fifty miles on a southwesterly course.Vitus Bering: the Discoverer of Bering Strait|Peter Lauridsen
Emerald Bay is about three miles in length, with a southwesterly trend, and half a mile wide.The Lake of the Sky|George Wharton James
Again you can note the shadows at this time, and it would appear as a southwesterly sun.Warren Commission (4 of 26): Hearings Vol. IV (of 15)|The President's Commission on the Assassination of President Kennedy
In fact, its path for migration passed over the Point in a southwesterly direction.The Black Moose in Pennsylvania|Henry W. Shoemaker
On June 9, 1915, the Italians made their swift stroke in a southwesterly direction from their Isonzo line.