Coolish and threatening rain, nothing dramatic. But my native Pacific Northwest is due for another "atmospheric river" to dump an awful lot of water in a hurry—10 to 20 inches in some areas.

In the 1960s we travelled through BC into the mountains and across to Alberta to visit family; camping along the way. I remember the stop in Hope, BC, where there was an interpretive display about a relatively recent landslide that had killed a number of people. It happens every so often up there, it happened earlier this year. Like the slide in the Stillaguamish River valley at Oso, Washington, a few years ago, this kind of rain makes living in mountainous areas where people sometimes scratch roads on the terrain and mine for minerals (up there - gold, silver, copper in particular), dig gravel, or log timber - all of these activities contributed to the danger that water exacerbates.

There is an illustration in the Washington Post article about it.