Predicting the next phase shift in the AMO.

UPDATED 08/04/2019

I predict that the next AMO shift (to a negative phase) will be around 2025 (please see the update below*).

I  showed that between 1870 and 2025, the precise alignments between the lunar synodic [phase] cycle and the 31/62 year Perigean New/Full moon cycle, naturally breaks up into six 31-year epochs each of which has a distinctly different tidal property. Note that the second of these 31-year intervals starts with the precise alignment on the 15th of April 1870, with the subsequent epoch boundaries occurring every 31 years after that:

Epoch 1 - Prior to 15th April  1870
Epoch 2 - 15th April 1870 to 18th April 1901
Epoch 3 - 8th April 1901 to 20th April 1932
Epoch 4 - 20th April 1932 to 23rd April 1963
Epoch 5 - 23rd April 1963 to 25th April 1994
Epoch 6 - 25th April 1994 to 27th April 2025

*UPDATE:

There is one important caveat to my prediction for the next transition date for the phase change of the AMO.

Wilson, I.R.G. and Sidorenkov, N.S., 2019, A Luni-Solar Connection to Weather and Climate II: Extreme Perigean New/Full Moons & El Niño Events, The General Science Journal, Jan 2019, 7637.
(see page 22)

http://gsjournal.net/Science-Journals/Research%20Papers-Climate%20Studies/Download/7637

A more detailed analysis of the transitional spring tidal events in the Perigean Spring New/Full moon cycles shows that they slowly drift into and then out of alignment with the nominal seasonal boundaries. This means that the end of the epoch that starts in 1994.237 (i.e Epoch 6) may not be in 2025.243 (i.e. 31-year later – see table 2) as the spring tidal events would no longer be in close alignment with the seasonal boundaries.

The most likely outcome is that epoch boundary marked by the strongest spring tidal events that align with the Spring Equinox near 2025.243 (i.e. March 29th 15:15 UT 2025) would move back in time by 4.531 years to a new epoch boundary marked by the strongest spring tidal events that align with the Autumnal Equinox near 2020.712 (i.e. September 17th 17:33 U.T. 2020).

This would produce a series of 31-year epochs (starting with strong spring tides that are aligned with the Autumnal Equinox) in the years 2020, 2051, 2082, 2113, and 2144 that closely match the
series of 31-year epochs (starting with strong spring tides that are aligned with the Spring
Equinox) in the years 1870, 1901, 1932, 1963, and 1994.

Hence, it is possible that the AMO may undergo a transition in its phase (from positive to negative) as early as 2020.