Farmers’ Almanac predicts cold, wild mix for 2020 -2021 winter. Winter is coming, apparently with a vengeance. The Farmers’ Almanac recently released its extended forecast for the 2020 -2021 season, which shows this upcoming winter could be brutally cold and snowy for much of the country.
It’s been a fairly mild start to 2020 as well as some sunny spells in the capital. London has seen its fair share of freezing temperatures in December, but the last few weeks have seen them rise. However, this is set to change before the end of winter, with snow forecast for five days.
U.S. Winter Weather Forecast 2020-2021 Uncommonly chilly temperatures will be limited mostly to the western states and northeastern New England. Snowfall will be greater than normal in the Northeast, Wisconsin, Upper Michigan, the High Plains, and northern Alaska and below normal in most other areas that receive snow.
“With La Nina well established and expected to persist through the upcoming 2020 winter season, we anticipate the typical, cooler, wetter North, and warmer, drier South, as the most likely outcome of winter weather that the U.S. will experience this year,” said Mike Halpert, deputy director of NOAA’s Climate Prediction
Snowfall at the beginning of March covered approximately 27.6 percent of the contiguous U.S. (CONUS) according to NOAA’s National Snow Analysis.
Snow and ice is expected across most of Scotland as well as parts of northern and southern England, Northern Ireland and Wales as 2020 draws to a chilly conclusion. A little snow is also possible on the south coast, but it is unlikely to be as heavy as previously forecast.
Snow forms when the atmospheric temperature is at or below freezing ( 0 degrees Celsius or 32 degrees Fahrenheit ) and there is a minimum amount of moisture in the air. If the ground temperature is at or below freezing, the snow will reach the ground.
One of the reasons for this is the strong polar vortex. The polar vortex is an area of low pressure over the poles and when it is strong, it typically keeps the coldest air over the Arctic. This has led to a lack of arctic air over the Lower 48. The polar vortex is expected to remain strong into late January.
A strong La Niña is defined as having sea surface temperatures at least 1.5 degrees Celsius colder than average.
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Farmers’ Almanac™ Releases 2020 -2021 National Winter Outlook – Rainy with Normal Temps for Northern California and Mild and Dry for Southern California. divide” because of its unusual outlook.
November 2020 to October 2021. Winter will be warmer than normal, with precipitation above normal in the north and below normal in the south. The coldest periods will be in mid- and late December and throughout January. Snowfall will be below normal, with the snowiest period in early March.