Fall and winter in Bellingham, and the rest of Western Washington, could be closer to seasonal norms, as last winter’s La Niña weather pattern — now in a neutral phase — is expected to return half-heartedly late in the year.
A La Niña watch issued last week indicates that Pacific Ocean surface temperatures off equatorial South America are expected to drop, a factor that typically means cold, wet weather for the Pacific Northwest.
In addition, long-range forecasts from the National Weather Service Climate Prediction Center are showing a warmer-than-normal fall with equal chances of above- or below-normal rainfall. The National Weather Service defines fall as September, October and November and winter as December, January and February.
Deputy state climatologist Karin Bumbaco told The Bel