One of our own #wawx members is recovering from a pretty bad bout of Covid. He's been in the community for a decade plus now, I've talked with him on Twitter since I joined the platform.
If any of you guys have an acct over there, go and wish him a speedy further recovery.
Hey all, I'm officially new to this forum but I've lurked around here every once in a few days since December 2021 to follow on the snow forecasts, and ever since I just generally lurked to follow the weather while learning things bit by bit.
I withheld on making an account because I don't have anything to contribute, I believe, and I wasn't sure how a newbie or an outsider would be treated. I have a very vague sense on how to read GFS or ECMWF maps but have no idea how to use them to pred
To follow up on Tonga... based on this it seems like the effect would be pretty minor overall.
https://www.downtoearth.org.in/news/climate-change/tonga-volcano-spews-enough-water-to-fill-58-000-pools-into-stratosphere-likely-to-add-to-global-warming-84150
Volcanic eruption in Tonga recorded January 15, 2022 is likely to add to global warming and the depletion of Earth’s ozone layer, according to a new study.
The violent underwater eruption of Hunga Tonga-Hunga Ha’apai injected 146 teragrams (1 teragram equals a trillion grams) of water vapour into the stratosphere. The stratosphere is the layer of atmosphere between 10-50 kilometres above the surface of the Earth.
The water vapour, a greenhouse gas, released by the volcano, is roughly 10 per cent of the water already present in the stratosphere, noted the study published in Geophysical Letters July 1, 2022.
“Tonga eruption may be the first volcanic eruption observed to impact climate not through surface cooling caused by volcanic sulfate aerosols, but rather through surface warming caused by excess water vapour,” the study noted.
12z EPS has Portland’s 850 mean at 22°C and both the operational and control getting to high 20s at 10-11 days out. Pretty hard to get a stronger heat signal at that range.
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