Predicting the February 2018 Sudden Stratospheric Warming
LOCATION
Streatham Drive
Exeter
Devon
EX4 4QR
United Kingdom
MEETING CHANGE
SPEAKER| Simon Lee, Department of Meteorology, Univ. of Reading
ABSTRACT| On February 12, 2018, some 30 km above the Arctic, temperatures rose by around 50°C and the stratospheric polar vortex split into two in a sudden stratospheric warming (SSW) event. These occur on average once every two years during Northern Hemisphere winter and can lead to large changes in the weather we experience at the surface – especially in places like the UK. February 2018 was a particularly significant example as a severe cold spell followed, known widely as “The Beast from the East”. In this talk I discussed what weather patterns led to the SSW, how well this event and its subsequent impacts were forecast by different modelling centres from around the world, and the implications for wintertime sub-seasonal predictability.
REGISTRATION IS NOW CLOSED
Free entry. Light refreshments from 6.30pm, meeting starts at 7.00pm.
This meeting is part of the Royal Meteorological Society Meetings programme, open to all, from expert to enthusiast, for topical discussions on the latest advances in weather and climate. Free to attend. Non members are welcome.
MEETING CHANGE
SPEAKER| Simon Lee, Department of Meteorology, Univ. of Reading
ABSTRACT| On February 12, 2018, some 30 km above the Arctic, temperatures rose by around 50°C and the stratospheric polar vortex split into two in a sudden stratospheric warming (SSW) event. These occur on average once every two years during Northern Hemisphere winter and can lead to large changes in the weather we experience at the surface – especially in places like the UK. February 2018 was a particularly significant example as a severe cold spell followed, known widely as “The Beast from the East”. In this talk I discussed what weather patterns led to the SSW, how well this event and its subsequent impacts were forecast by different modelling centres from around the world, and the implications for wintertime sub-seasonal predictability.
REGISTRATION IS NOW CLOSED
Free entry. Light refreshments from 6.30pm, meeting starts at 7.00pm.
This meeting is part of the Royal Meteorological Society Meetings programme, open to all, from expert to enthusiast, for topical discussions on the latest advances in weather and climate. Free to attend. Non members are welcome.