At 3:24pm Monday Jan. 5th, the National Weather Service issued the following Flood Watch Advisory:
… Flood Watch in effect from Tuesday evening through Friday afternoon…
Rain will fall over western Washington beginning Tuesday afternoon and continuing into Thursday. Rain will be heavy at times in the mountains… along the coast… and over the southwest interior and lower Chehalis valley. The Cascades and Olympics will get 5-10 inches with some southwest facing slopes 15-20 inches. Perhaps 6 inches will fall on the coast and SW interior. The Seattle area could see 4 inches over the two days and northern lowland areas will get an inch or two.
This sums to a real flood potential… both for river flooding and urban and small stream flooding. This flooding will be driven by heavy rain that has been consistently present in numerical models. Some flooding seems certain… and major flooding is possible on some rivers.
Monitor weather forecasts in case conditions change. If you live near a river… prepare for flooding now.
There are plenty of creeks and streams in the Burien area, so be sure to check for clear drains and clogs if you live or work near one.