Ellinwood Posted January 4, 2011 Share Posted January 4, 2011 A different look at some of the stuff Don Southerland posted... Januarys with a mod/strong Niña in NDJ (-1.0 or lower) and the corresponding January AO and NAO values 1950-present: Year (AO, NAO) 1951 (-0.085, +0.08) 1955 (-1.163, -1.84) 1956 (-1.204, -0.22) 1965* (-1.046, -0.12) 1971* (-0.163, -1.13) 1974** (+0.232, +1.34) 1976 (+0.034, -0.25) 1985 (-2.806, -1.61) 1989* (+3.106, +1.17) 1999** (+0.110, +0.77) 2000 (+1.270, +0.60) 2008** (+0.819, +0.89) * Years where the previous winter had a weak El Niño ** Years where the previous winter had a mod/strong El Niño Using the four highlighted years, which indicate a mod/strong -AO during January (no weak -AO cases), we get this composite for January, using 1971-2000 normals: 1965, the ONLY analog from 1950-present with a mod/strong -AO coming out of any sort of Niño to mod/strong Niña transition year: EDIT: Maps changed to use fixed scale. Link to comment Share on other sites More sharing options...
Ellinwood Posted January 4, 2011 Author Share Posted January 4, 2011 A look at the years transitioning from a mod/strong Niño: Link to comment Share on other sites More sharing options...
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