Impressive and long - lived wind anomalies at all levels of the atmosphere have been associated with these geopotential height and sea level pressure anomalies in the North Pacific. (weatherwest.com)
A positive summertime sea level pressure anomaly over the central Arctic Basin is featured. (arcus.org)
The map of sea level pressure anomalies (in millibars) for December 2009, shows higher than average pressures over Arctic latitudes (areas in orange and red) and lower than average pressures over north Pacific and North Atlantic oceans (areas in blue and purple. (nsidc.org)