The massive positive anomaly forecast on the super ensemble mean d+11 map below with the positive near the Bering Straits is favorable for heavy precipitation somewhere from northern CA northward into WA as well as the northern Rockies. Such a massive block usually leads to downstream amplification of the trough over the gulf of ak and if it get deep enough and elongates with a positive tilt can bring lots of moisture into the region. Such a feature is often associated with the development of