12z EPS for Dec08 and Dec12:
Blocking in Greenland is not wildly off, however the PNA domain was very wrong which changes everything. Instead of having a PV under the block, it is now over Western Canada and the SE ridge is able to link up to the blocking. This is exactly what I was concerned about on November 27th:
SSTs support the -PNA regime and I have no faith in any ensemble trying to break down the -PNA.