Sudden Stratospheric Warming (SSW): Abrupt, large-scale increases in stratospheric temperatures during winter that disrupt the polar vortex and alter global atmospheric circulation.

While these “sudden stratospheric warming” events happen to some extent every year, this one is categorized as a major event and is less common.

The weather phenomenon that brought the Beast from the East could be returning to Swindon and Wiltshire this month. The Met Office has forecast a sudden stratospheric warming (SSW) in mid-March.

Sudden Stratospheric Warming (SSW): An abrupt rise in stratospheric temperatures that leads to a disruption or displacement of the polar vortex.

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Sudden Stratospheric Warming (SSW) is often the trigger for a polar vortex collapse. It occurs when temperatures in the stratosphere rise dramatically (by 30–50°C in a few days) due to changes ...

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Antarctic sea ice extent has fallen dramatically in recent years – the effects include accelerated ocean warming, faster loss ...