The operative words being: "very similar to the snowstorm that hit Seattle during Thanksgiving week"

“The latest weather forecasts call for snowfall of 2 to 6 inches beginning Wednesday afternoon, followed by freezing temperatures through the end of the week. That pattern is very similar to the snowstorm that hit Seattle during Thanksgiving week last year. While we learned a lot and made improvements following that storm, it’s impossible to predict exactly where and how this week’s storm will hit hardest.

With that in mind, we are activating the city’s snow and ice plan. The Seattle Department of Transportation began by pre-treating streets with anti-icing solution today. Crews will go to 24-hour work shifts beginning Wednesday morning.

Because Wednesday afternoon’s commute is expected to be difficult, it may be a good day to work an alternate shift, telecommute or make other travel arrangements if possible.”

- Mayor Mike McGinn