Cold wave

February 2021 North American cold wave winter of 2009–10 in Europe 2014 North American polar vortex 1994 North American cold wave Early 2012 European cold wave transport cold January 2016 East Asia cold wave January 2016 Northern Hemisphere cold wave Great Frost of 1683–84 January 2017 European cold wave February 2018 European cold wave Cold wave of January 1977 Great Blue Norther of November 11, 1911 Great Frost of 1709 January 2019 North American cold wave winter 1985 cold wave in North America