Editing Sudden stratospheric warming (section)

=== Major ===
A major SSW event is the strongest type of SSW event. These events are usually strong enough to entirely reverse the westerly flow that is common in the stratosphere during winter. These events influence temperatures as far south as 60 degrees north and are usually strong enough to completely disrupt the [[polar vortex]], often splitting it into smaller vortices or displacing it entirely from its normal location.<ref name="McInturff">{{cite report |url=https://ntrs.nasa.gov/api/citations/19780010687/downloads/19780010687.pdf |title=Stratospheric warmings: Synoptic, dynamic and general-circulation aspects |date=1978 |publisher=NASA Scientific and Technical Information Office |issue=1017, ''NASA Reference Publication'' |access-date=3 July 2024 |editor-first=Raymond M. |editor-last=McInturff}}</ref> In order to qualify as a major SSW event, the event must completely reverse the westerly flow and come down to 60 degrees north.