SOI is on the move.

The Southern Oscillation Index is moving Northwards now. Its been all over the shop in recent months, showing the atmosphere is decoupled from the oceans and a neutral year is the result.

The last 2 days it’s started climb and the 30 day is now up to -1.01, and the 90 day average is up to -4.84. This figure needs to consistently be around the 10 mark either way if its going to go either La Nina or El Nino. As it’s now climbing, it will ensure a normal summer through the tropics.

Date Tahiti Darwin Daily** 30 day avg SOI 90 day avg SOI
10 Aug 2012 1014.08 1015.20 -16.63 -4.33 -6.71
11 Aug 2012 1015.50 1015.70 -11.05 -5.30 -7.02
12 Aug 2012 1014.46 1016.10 -19.79 -6.49 -7.40
13 Aug 2012 1013.36 1015.70 -24.03 -7.59 -7.70
14 Aug 2012 1014.28 1015.15 -15.11 -8.77 -7.68
15 Aug 2012 1013.48 1015.45 -21.79 -9.78 -7.75
16 Aug 2012 1012.90 1014.90 -21.97 -10.89 -7.93
17 Aug 2012 1015.26 1013.15 2.97 -10.90 -7.89
18 Aug 2012 1016.43 1013.10 10.38 -10.81 -7.79
19 Aug 2012 1015.51 1013.10 4.79 -10.83 -7.71
20 Aug 2012 1013.50 1013.65 -10.74 -11.28 -7.83
21 Aug 2012 1013.66 1013.10 -6.43 -11.42 -7.84
22 Aug 2012 1014.36 1012.60 0.85 -11.25 -7.73
23 Aug 2012 1015.05 1012.20 7.46 -11.02 -7.48
24 Aug 2012 1015.99 1012.65 10.44 -10.66 -7.06
25 Aug 2012 1016.51 1012.70 13.29 -10.14 -6.55
26 Aug 2012 1016.63 1012.65 14.32 -9.58 -6.17
27 Aug 2012 1016.20 1012.40 13.23 -8.77 -5.91
28 Aug 2012 1014.84 1012.90 1.94 -8.13 -5.64
29 Aug 2012 1014.88 1013.70 -2.67 -7.56 -5.58
30 Aug 2012 1015.49 1013.80 0.42 -6.63 -5.68
31 Aug 2012 1015.55 1012.85 6.55 -5.19 -5.77
1 Sep 2012 1015.33 1012.55 2.74 -4.00 -5.93
2 Sep 2012 1014.63 1012.40 -0.53 -3.44 -5.98
3 Sep 2012 1013.14 1012.25 -8.50 -3.66 -5.95
4 Sep 2012 1014.56 1012.95 -4.22 -3.94 -5.85
5 Sep 2012 1016.58 1013.45 4.82 -3.79 -5.69
6 Sep 2012 1017.09 1012.40 14.09 -3.14 -5.46
7 Sep 2012 1017.53 1012.80 14.32 -2.12 -5.14
8 Sep 2012 1016.84 1012.75 10.52 -1.01 -4.85
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