PMM_Fig2_SLP_SST_regression_1240.png

Fig. 2: Early spring (February-April) sea surface temperature and winter (December- February) atmospheric circulation anomalies related to the positive state of the Pacific Merdional Mode during early spring. Dashed black contours reflect lower-than-average sea level pressure and solid black contours indicate higher-than-average sea level pressure. Anomalous low-level winds flow counter-clockwise approximately paralleling the dashed contours, while flowing clockwise nearly paralleling the solid contours. Red shading indicates above-average sea surface temperature and blue shading reflects below-average sea surface temperature. Figure provided by Dan Vimont and modified by Climate.gov.