El Nino Slows Start of November Rains in Portland Area
The ongoing El Nino pattern is causing a weaker-than-normal jet stream over the Pacific, leading to a slow start to the November rainy season in Portland, Oregon. October ended with temperatures 1.9°C above average and rainfall 1.38 inches below normal at Portland International Airport. November, typically the second wettest month of the year with an average of 5.45 inches of rainfall, has so far seen scattered weak systems bringing limited precipitation. The jet stream is currently diverting most active weather either south into California or north into Canada. Long-range models suggest a potential shift to a wetter pattern next week, but no significant storms are expected yet.
