- December 2020 forecast – Early winter weather shows defiance to the La Nina, but the "beast from the ocean" will show its influence later in the month. It will take over the jet stream in North America, while Europe will remain in a locked pattern for most of the month. https://www.severe-weather.eu/global-weather/december-2020-monthly-weather-forecast-europe-usa-la-nina-fa/ 3 comments worldnews