This photography was just done the other day. I was contracted to shoot the I-15 Corridor near Ogden, Utah.
I lit this shot using 3 SB-800's strobes fired with Pocket Wizards. On the right side, Omni dome on strobe and set to 1/2 power.
On the left side, 2 strobes. The closest strobe to the camera has the omni dome on it set at full power and the second strobe has the flash head zoomed to 105 and set at 3/4 power.
The temp was real cold.