This story will be updated as Google provides information on the outage.
Snapchat's parent company, Snap Inc, said in its annual report it used Google Cloud, but neither company responded to questions about whether the Snapchat outage was linked to the Google Cloud issues.
Google users have been venting their frustration on other platforms as the outage has affected many, from inability to access YouTube to disruption of workflows.
"Our engineering teams have completed the first phase of their mitigation work and are now implementing the second phase, after which we expect to return to normal service".
Gmail, Google Calendar, Drive, Docs, Sheets, Slides, Sites, Groups, and Hangouts, Hangouts Chat and Meet, Google Forms, Keep, Tasks, Voice, Sync for Mobile, and Realtime API, and YouTube all went AWOL for various users shortly after noon and returned hours later at 4.30pm Pacific Time. Service appeared to be working normally on the West Coast of the US with the exception of Google Analytics, which was not working in Portland Sunday afternoon.
Other services that rely on Google Cloud for hosting, such as Uber, Rocket League, and Discord, also seemed to be experiencing issues as a result of the apparent outage.
Originally published at 1:20 p.m. PT. Update, 2:25 p.m. PT: Adds comment from Google and background on Google Cloud.
"Users may see slow performance or intermittent errors", said the company.