If Rain Comes? Wonder how long that Oregonian Staff writter has been living in the Northwest. This is the Pacific Northwest - Rains will come and that 160+% of normal snowpack is going to go someplace.
I think they were referring to, if rain came early and stronger then normal.
And before it runs off, the snow will absorb the water and weigh 5X more than it does now.
THe problem is that "when rains come" means not some easy, gentle sort of thing, but rather a heavy, warm rain accompanied by chinook winds, which will melt all of that snow in a couple of days.
Historical note: Idanha was pretty much washed away by flooding in 1964.