press release:
Although snow and ice may be replaced by slowly warming temperatures on Friday (with the forecast for somewhere in the 40 degree range), it is expected that road conditions will continue to be treacherous in the morning. King County Metro Transit will continue with chained buses and snow routing on Friday, January 20.

Metro plans to operate the same level of service it has used since mid-week, with 27 regular service routes canceled. If travel conditions improve enough, service on these routes could be restored, but not until it is safe to do so. Before traveling, riders should check for the most current status of Metro service.

Friday’s bus service will probably still be significantly disrupted and delayed, so it’s important for Metro customers to watch for updated information online or through Transit Alerts. At times on Thursday, even the designated snow routes for some buses were impassable due to trees across roadways and other unexpected barriers in many locations. Metro sends Transit Alerts when there are revisions or updates to published information.

Due to the expectation of treacherous and impassable roadways on Friday morning, Metro is scaling back some service in order to be able to operate the rest of its system as safely and reliably as possible.

The routes expected to be canceled on Friday morning are:
2EX, 38, 42, 45, 46, 51, 53, 79, 114, 161, 162, 175, 192, 193, 197,
205, 210, 215, 216, 219, 224, 237, 251, 268, 277, 316 & 355.

Additionally, if schools are closed, Metro will cancel its Custom School routes.

DART service is expected to be on snow routing.

Information about route cancellations and revisions is available on Metro’s Snow & Ice page. Service could be revised or restored depending on actual travel conditions. Metro will notify subscribers if service is revised or restored.