Various reports of flooding and erosion started rolling after an interesting coastal storm on or around January 12th, and what struck me most was how wide-scale those reports were...in terms of the number of different areas on Washington's Coast, in the Strait of Juan de Fuca and in Puget Sound that were affected in some way. It really seemed to be a mix of processes (i.e. a high tide, storm surge, swell waves and locally-generated wind waves) expressed in various combinations around the state.
On the coast and in the Strait of Juan de Fuca there were definitely waves that coincided with a reasonably high tide. - the shot at top is from the base of Ediz Hook right around high tide, illustrating the size of the waves beating on the upper beach of Ediz Hook. However, around the inside of Ediz Hook waves weren't a factor, but the tide was high enough (the tide gauge in Port Angeles maxed out arund 2.8 ft above MHHW, which is indeed pretty high) to float most of the large wood on the upper beach:
|Photo Credit: Bob Simmons/WSU Jefferson County Extension|
|Photo credit: Olympic National Park|
|Photo credit: Joan Schrammeck|
|Modelled total water level for Rialto using still water levels recorded at the La Push tide gauge, coupled with run-up estimates modelled using equations from Stockdon et al 2006. The "Parking Lot Berm Elevation Threshold" is an average estimate of the maximum elevation of the berm seaward of the parking lot at Rialto Beach derived from my own survey data. This analysis suggests that total water level has only exceeded that berm elevation a handful of times since 2008.|