El Nino has a 70 to 75 percent chance of developing, it will likely be in place by late fall/early winter. Portland averages 13 inches, 19 inches and 12 inches of snow in the three months in question, while Bangor averages 14 inches, 19 inches and 15 inches, respectively.
- No part of the U.S.is favored to have below-average temperatures.
It also said that wetter-than-average conditions are likely across the southern part of the US, and up into the Mid-Atlantic.
Map showing the NOAA winter outlook for the months of December, January and February for the U.S. This change in sea surface temperature has a wide range of effects on seasonal weather patterns across the globe, but in the USA, an El Niño typically means warmer winter temperatures, and higher levels of precipitation in certain regions of the country.
What will determine just how wet the Carolinas' winter could be is El Niño, "an ocean-atmosphere climate interaction that is linked to periodic warming in sea surface temperatures in the central and eastern equatorial Pacific".
Precipitation is expected to be above normal across the southern tier of the United States, extending up into the Mid-Atlantic. The center has given much of the Southern United States, from the Gulf of Mexico to the Chesapeake Bay, a clear chance of a wetter winter, with pockets of drought around the Dakotas and the Great Lakes. The chances are highest in southeastern Georgia and much of northern and central Florida.
Drought conditions may worsen in much of Southern and Central California, although the north coast of California may see some relief, according to NOAA. During the winter, typical El Nino conditions in the US can include wetter-than-average precipitation in the South and drier conditions in parts of the North. Portions of the Northern Rockies and the Northern Plains are also likely to experience drier-than-average conditions. They will provide you with estimated snowfall totals for the winter in Eastern Kentucky.
Even so, it's no time to ditch the shovels and heavy winter jackets, with NOAA warning that its forecast does not mean the winter of 2018-2019 will not feature major snowstorms. "Even during a warmer-than-average winter, periods of cold temperatures and snowfall are still likely to occur", the agency stated. The next update will be posted on November 15.