Radar map image courtesy of the National Weather Service

As of Saturday, the UW’s Cliff Mass was downgrading the risk of flooding even over the Olympics and North Cascades, because models were showing the rains passing through today, rather than setting up camp and pouring for several days.

That said, today’s downpour is already well underway, and Seattle traffic maps are a motley of red and black. UW’s Probcast gives us a 15 percent chance of more than an inch of rainfall (maximum 1.4 inches).

The massive low that’s delivering this moisture is parked up in the Gulf of Alaska, and generating 30- to 40-foot waves out to sea.

That low is weakening, and tomorrow there’s only a ten percent chance of rain. Again, looking out the window, that’s a little hard to believe–but science says so. If you haven’t voted, you won’t be able to blame lousy weather for your lack of civic responsibility.

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