Winter in the PNW does not mean reliable conditions for photographing planes. If the weather is bad, you might decide it isn’t worth going out. If it is raining and threatening to rain harder, there is a strong possibility you would skip a shot opportunity. However, 727s are getting pretty rare these days so that seems worthy of a trip out.
The weather was unpleasant when it made its approach but not as bad as it got a short while later. I went with my normal approach for shooting in really bad conditions by pushing the overexposure pretty high. I include a couple of edits. For the main image, I actually blended two different process versions in Photoshop to get the combination that most reflects how the shot looked through the view finder. The other edit is a straightforward Lightroom edit where the angle and the light suited it.