This winter may be less predictable than the last few. Here's why

(NEXSTAR) – As we enter the colder months of the year, national meteorologists are getting a clearer picture of what winter might look like. This winter was originally thought to be dominated by the La Niña phenomenon. But now, the Climate Prediction Center believes it will be a "weak and a short duration La Niña" – if it appears at all.

In an update issued Thursday, the Climate Prediction Center lowered its chances of a La Niña occurring this fall and winter. The odds it forms by November are now at 60%.