SOI

[hurricanetrack]

The SOI for Feb. 5:

Date: 5 Feb, 2010

Average SOI for last 30 days : -19.97
Average SOI for last 90 days : -11.14
Daily contributor to SOI calculation: -80.41
---------------------------------------------

Monthly Average SOI Values

Nov: -6.42
Dec: -9.00
Jan: -8.26


That should be one enormous Kelvin Wave coming across soon....might just knock South America off its legs!

[JonathanBelles]

Care to explain those numbers and what a Kelvin Wave is?

[HURRICANELONNY]

Never seen the SOI that negative. What is the lowest ever recorded?

[hurricanetrack]

This helps a little bit- a nice write up from a fellow in Raleigh, NC I believe:

http://www.examiner.com/x-17371-Raleigh ... ter-season

[Aslkahuna]

Don't want to forget that there was an intense Tropical Cyclone near Tahiti conributing to the low SOI on the 5th (this is why daily numbers aren't that useful).

[cycloneye]

Mark,its possible that the SOI will crash again in the comming days as another cyclone moves close to Tahiti this week.