Why does it matter for the N hem? Tropical stratosphere & tropopause region cooling thanks to a SSWE means static stability ⬇️. This change in static stability can trigger tropical convection over the Indo-West Pacific Warm Pool, implicating things like CC Kelvin Waves & the MJO https://t.co/Pi028Odqt2

— Eric Webb (@webberweather) August 26, 2019