La Niña is likely to collapse mid-winter, according to NOAA’s Climate Prediction Center, weakening the typical winter effects. A transition to El Niño could happen this summer.

More snow is headed for the Northeast later this week as another system makes its way through the area. Snow totals are still uncertain as models disagree with their predictions. The position and track of the low pressure system will determine if the I-95 corridor and cities like Boston will see a winter wonderland or be stuck with a rainy mess. Snowfall totals in the interior Northeast could reach a foot of snow, but may also just see a few inches. Watch for the latest forecasts and check back later as we get closer to the arrival of this system.

As Victoria, Australia, is engulfed in wildfires fueled by a heat wave, some Australians are fighting back. Luke Humphrey took this video while commandeering construction equipment to demonstrate “an example of when ordinary Aussies take initiative and act without hesitation in times of need.”

While the western half of the county experiences above-average temperatures, a pattern flip will bring temperatures dipping across the Eastern U.S. later this week. On Thursday, more than 100 million people could see below-average temperatures, with highs 5 to 15 degrees below average. This cold air will extend from Florida all the way up to the Great Lakes. Atlanta, Nashville and Birmingham are expected to see temperatures in the mid 30s while Pittsburgh and Chicago will see temperatures in the mid 20s. By Friday, this cold air will expand to the Northeast. Watch to see what temperatures will look like in your city.

After record December storms collapsed roofs and sank boats, Juneau, Alaska, had been racing to dig out from a fresh round of heavy snow before the rain arrived. Two small avalanches have been triggered so far. Here's the latest.