In a post last week I noted that we are now in a La Niña watch, which means that conditions in the eastern Pacific Ocean are reflecting a developing La Niña as characterized by colder than normal ocean temperatures off the coasts of Peru and Ecuador stretching almost halfway west across the Pacific Ocean. This cool water can affect the air above it in ways that shift the jet streams and associated weather across the globe. Cliff Mass of the University of Washington has a good general description of La Niña at https://cliffmass.blogspot.com/2017/09/la-nina-and-this-winters-weather.html, but the expected weather in the Southeast is quite different than what they will get in Seattle. To see how the Southeast is affected you can use the AgroClimate web site at https://agroclimate.org/tools/climatology/ to get month by month maps of how climate patterns are like to shift in a La Niña fall and winter. Note that the strongest effects occur in Florida and southern parts of Alabama and Georgia–northern areas are not as predictable.
Since this is likely to be a weak to moderate La Niña, you might be interested in seeing the differences between different strengths of events. You can find that at https://ggweather.com/enso2016/us_lanina.html.
