Post by Ratty on Nov 23, 2017 10:11:06 GMT
The BOM's take: ENSO Wrap-up (Wrap-up? Changed from "watch" to "alert")
The tropical Pacific is approaching La Niña thresholds. If the current progression continues, and thresholds are exceeded for a sustained period, 2017–18 will be considered a La Niña event. As a result, the Bureau’s ENSO Outlook has been raised to La Niña ALERT meaning there is approximately a 70% chance—or triple the normal likelihood—of La Niña occurring. Climate models suggest that any event is likely to be weak and short-lived. This means it is expected to be very different to the strong 2010–12 La Niña.