Fig. 3

a Differences in mean winds (850-hPa) and precipitation during SALLJ days between negative (Nov 1965–Aug 1996) and positive (Sep 1924–Oct 1965) AMO phases. Time series of winds and precipitation contain linear trends. b As in a, but linear trends in winds and precipitation have been removed before calculating the difference between negative and positive AMO phases. Vectors in blue colors are statistically significant at 5% confidence; vectors in red are not statistically significant. Vector scale is shown in the inset. Shading shows statistically significant (5% level) differences in mean precipitation