La Niña May Develop By Fall or Winter, NOAA Says

La Niña is now increasingly possible in the next few months, according to a new report

La Niña/El Niño, the periodic cooling/warming of the equatorial eastern and central Pacific Ocean, can shift weather patterns over a period of months, bringing the possibility of more sustained warm, cold, wet or dry weather in parts of the world.

Since mid-August, slightly cooler-than-average surface temperatures were in place across the equatorial eastern and central Pacific Ocean. NOAA also noted water below the surface in this zone had also trended colder than average.