Polar vortex reportedly undergoing a sudden stratospheric warming event

Several outlets and search data point to a sudden stratospheric warming event affecting the polar vortex, with USA Today running the headline "The polar vortex is doing something extraordinary." The items do not detail the expected effects on weather.

Timeline

1. 3 Nov, 18:20 UTCFirst appeared on Google Trends
2. 3 Nov, 18:20 UTCPicked up on News
3. 3 Nov, 18:20 UTCUSA Today covers polar vortex event

Top sources

• sudden stratospheric warmingGoogle Trends
• A sudden stratospheric warming event is occurring, what it means for usCIProud.com