Visible from West Seattle this morning, in what’s known as the Yukon Harbor anchorage area, just off Manchester, north of Blake Island, a submarine joined the anchored cargo ships for more than an hour. Thanks to Tom Stoner for the photo (and to John for an earlier tip). An unusual sight – usually they’re just glimpsed while on the move – so we have a few calls out, but now it looks to be headed, with its tug escorts, into Rich Passage and toward Bremerton.