Uploaded April 2024 | Updated September 2026, 2 weeks ago
Screen recording of the Earth NullSchool weather data viewer showing the winds and temperature in the upper stratosphere (10-millibar pressure level) on November 12, 2024. The polar vortex—defined as the mean winds at 60 degrees North (cutting through southern tip of Greenland)—was behaving itself: winds were strongly westerly, which is their typical (mean) state during the winter. Later in the season, things got squirrelly, with several disruptions and sudden warmings.
Screen recording of the Earth NullSchool weather data viewer showing the winds and temperature in the upper stratosphere (10-millibar pressure level) on November 12, 2024. The polar vortex—defined as the mean winds at 60 degrees North (cutting through southern tip of Greenland)—was behaving itself: winds were strongly westerly, which is their typical (mean) state during the winter. Later in the season, things got squirrelly, with several disruptions and sudden warmings.






