The ECMWF is the only model out of the four that show the center of the low tracking through northern Washington. The other three all show a landfall track between southern and central Vancouver Island. If the ECMWF pans out, 25% chance, expect a 25-35 mph ENE day at Centennial.
If the low crosses central Vancouver Island, 50% chance, it would most likely produce SE 40-50+ mph winds for Centennial Saturday afternoon. If the low crosses southern Vancouver Island, 25% chance, we would see sustained SE 55 to hurricane force 75 mph gusts and one of the most powerful Pacific wind storms to ever impact the Lower Mainland since records have been kept.......
Check out the 3:30pm updated Saturday synopsis
Rain and wind will ease on Friday but a weak system will keep it a
bit wet and unsettled. The next much more powerful storm associated
with the remnants of Typhoon Songda will approach the region. Water
vapor imagery shows the typhoon already being pulled into the flow
driven by an nearly 200kt jet. Most models show the surface low
deepening as the system transitions to an extra-tropical cyclone.
There is somewhat better agreement that the low will deepen to
around 960 mb as it makes the turn northward inside 130w on
Saturday. The ECMWF brings the low right into Western Washington
while other models take the low into central Vancouver Island. The
newer 18z Nam and GFS are closer together taking the low closer to
the coast and deeper than the ECMWF which would be a very windy
solution. This worse case scenario could produce historically strong
winds across Western Washington and could generate swell close to 40
feet which may impact the coast causing coastal flood issues. Other
models like the Canadian are further offshore and would spare the
interior lowlands from the worst winds. Will need to watch this
system closely and suspect watch products for wind and coastal
flooding may be needed soon if model trends continue