|6-10 Day 500mb height anomalies from European (left) and American (right) model guidance.|
Negative West Pacific Oscillation index will be provoked in either scenario with strong high pressure in the Bering Sea. The tendency of high pressure in the Bering Sea allows a pattern more supported by the European model, with lower pressure placed in a portion of Canada and not elongated throughout the entire region. Additionally, high pressure instigated by the negative WPO in the Southwest US is more enhanced by the European model, and it is this solution I favor for the next little while. Regardless of which model guidance prediction is correct, a weakly amplified pattern appears to be in store for the United States, and this should allow for a more stagnant pattern- not many sudden temperature swings due to a wild jet stream.