January 2001 at 1900 UTC (11 AM PST):  At this time the S-Pol radar showed a heavy shower approaching the Oregon and Washington coasts. The Camano Island radar did not show the heavy rainband at all and just indicated some light shows off the Northwest coast.  The lack of any precipitation along the central Washington coast on the Camano radar is the result of total blockage by the Olympics to the southwest of the radar.  The Portland radar indicated nothing north of the Columbia River and greatly underplayed the intensity of the feature along the Oregon coast.  Neither NWS radar paints out the offshore extent of the rain.

S-Pol Coastal Radar Image

Camano Island (left) and Portland (right) radar images at the same time.