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February should offer some reprieve from storms. The last time that there was a La Nia winter was 2020-21 (also moderate strength). Weather. SPOKANE, Wash. Looking ahead to the upcoming winter season, La Nia conditions are likely to develop for the second straight year. Wind Chill Reviews of Geophysics,43, 1-36. For Washington, Oregon and Idaho, the Farmers Almanac winter forecast calls for "typical winter temperatures and precipitation.". Note that even the most. Washington . These analogues helped to loosely form the basis of our temperature and snow predictions because the weather in those years had some similarities to the factors below. SEATTLE With the official start of winter little more than two months away, many in Puget Sound may be growing eager for colder weather to arrive so they can plan some exciting, wintry fun. US Dept of Commerce Lett. The NAO index is obtained by projecting the NAO loading pattern to the daily anomaly 500 millibar height field over 0-90N. "La Nia strengthened in the last month, with below-average sea surface temperatures (SSTs) evident across most of the equatorial Pacific. 2: Inside baseball: Further details of the ENSO relation. Winter temperature differences from average (degrees F) during La Nia winters dating back to 1950. . Looking for a speaker? Last winter we called for slightly below-average snowfall (10 to 14 inches) and somewhat above-average temperatures (2 degrees above average), whereas snowfall was solidly below average (6 to 10 inches), and temperatures were slightly above average (1.1 degrees above average). The Old Farmer's Almanac's extended forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to gardening, hiking, and other outdoor activities. The MJO can produce impacts similar to those of ENSO, but which appear only in weekly averages before changing, rather than persisting and therefore appearing in seasonal averages as is the case for ENSO. Wallace, 2001: Regional Climate Impacts of the Northern Hemisphere Annular Mode. Winter temperatures have steadily risen in Washington over the past 150 years, and snowfall amounts are in decline. For the MJO to be considered active, this dipole of enhanced/suppressed convective phases must be present and shifting eastward with time. The longest La Nia lasted 33 months. NOAA's Climate Prediction Center will release their 2021-22 Winter weather outlook in October while KREM2 Chief Meteorologist Tom Sherry will have the Inland Northwest's long-range winter forecast in November 2021. Long-Range Weather Forecast for 2022 | The Old Farmer's Almanac The years are ranked by how far below average the temperatures were in the central/eastern tropical Pacific: strong (at least -1.5 Celsius colder than average), moderate (between -1 and -1.5C), and weak (between -0.5 and -1C colder-than-average). For more details on why these shifts were made, please see the local winter outlook tab below. Street Departments 2022-23 North American winter - Wikipedia 2022-2023 Extended Winter Forecast; 2022-2023 Canadian Extended Winter Forecast; 2023 Spring Extended Weather Forecast; 2023 Summer Extended Weather Forecast; . Time Zone. J. Atmos. AccuWeather 2021-2022 winter forecast: Which parts of the U.S. will be Lavender, S. and A. Matthews, 2009: Response of the West African monsoon to the Madden-Julian Oscillation,J.