Negative SAM Inspires System Flip-Flopping
A warm NW'ly feed Thursday is followed by a cold polar blast through south-east Australia this weekend.
As prescibed in my last post the Southern Annualar Mode (SAM) undergoes a deep cycle shift into it’s negative mode over the next 7-10 days.

When the Southern Annular Mode (SAM) is negative, it leads to large wave patterns in the po…
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