SeaTac is not the easiest place to get shots of the arrivals in the afternoon if the flow is from the north.  The inner runway is okay but the outer is not so easy without bugging the more experienced locals.  I was heading to the airport for a meeting but, with easy traffic, I got there a little early and decided to do a quick trip around the airport.  I came across a gravel parking area that gives a view of short final.  The planes appear quickly and are soon below the sight lines for the runway but there is a window in which you can shoot.  On this day the weather was crummy with rain constantly coming down – sometimes very heavily.  This was just a recce but I did get an A220 and some other types in the few minutes I was there before heading to my meeting.