I am at the airport, and I made it through check-in at the long TSA Precheck line at checkpoint 4.
The airport is swamped with travelers. Even though the line is long, it’s still very nice to not have to take out anything out of one’s bag.

The view from Seattle-Tacoma Airport’s main lounge at Terminal A.
It is 62 °F (17 °C) under overcast skies here.