Humor4u

[ posted earlier at facebook ] The image on the right shows a forecast of very low temperatures over North America with a temperature of -40 °C / °F highlighted (green circle at center) for December 23, 2022 14:00 UTC.  As the image shows, temperatures over large parts of North America are forecast to be even lower than the temperature at the North Pole.   The combination image below illustrates this further, showing temperatures as low as -50.3°C or -58.6°F in Alaska on December 22, 2022 at 17:00 UTC, while at the same time the temperature at the North Pole was -13.6°C or 7.4°F.  The Jet Stream The image below shows the Jet Stream (250 hPa) on December 13, 2022, stretched out vertically and reaching the North Pole as well as the South Pole, while sea surface temperature anomalies are as high as 11°C or 19.7°F from 1981-2011 at the green circle.  The Jet Stream used to circumnavigate the globe within a narrow band from West to East (due to the  Coriolis F...

Above image shows that, in October 2020, the Arctic Ocean was very hot. The Copernicus image below shows temperatures averaged over the twelve-month period from November 2019 to October 2020. Keep in mind that, in the Copernicus image, anomalies are compared to the 1981-2010 average. Note that the shape of the recent twelve-month period is similar to the 2016 peak, when there was a strong El Niño, while in October 2020 the temperature was suppressed due to La Niña and due to low sunspots. The image below shows how a hot Arctic Ocean distorts the Jet Stream and hot air moves all the way up to the North Pole.  Above image shows the Northern Hemisphere at November 12, 2020, with a temperature forecast of 2.0°C or 35.5°F at the North Pole at 1000 hPa at 15:00Z. On the right, jet stream crosses the Arctic Ocean (at 250 hPa). At surface level, a temperature was forecast to be 0.6°C or 33.2°F.  As it turned out, the highest temperature at the North Pole was 1.1°C or 34.1°F on No...