The Stratospheric water vapor injected by the eruption of the Hunga-Tonga Hunga Volcano in Dec 2021 has now made it past 45N. I continue to monitor this as part of ongoing research related to how this anomalously high H2O concentration might impact the #PolarVortex #wxtwitter pic.twitter.com/gQVdDmFmG6

— Mark Margavage (@MeteoMark) November 28, 2022