- Forecasters warn freezing Arctic temperatures could sweep into North America and Europe as early as November due to a weakening polar vortex.
- The ongoing El Niño weather phenomenon is disrupting the high-altitude ring of cold winds above the Arctic, causing wind speeds to drop rapidly.
- A weakened polar vortex can cause the jet stream to snake, sending severe cold air southwards towards northern Europe and the UK.
- Data from Nasa indicates that wind circulation within the stratospheric polar vortex will weaken significantly between late October and early November.
- The Met Office has warned that the combined impact of sudden stratospheric warming and El Niño increases the likelihood of prolonged cold snaps and snow this winter.
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