Gerry GambinoJan 23, 2024
kcarruthers

“Your periodic reminder that less ice at the Arctic is consistent with a weaker jet stream that allows cold air to drift down into the Great Plains.

The frigid temps you're experiencing happen BECAUSE of a warming planet, not in spite of it.” Via Dr Steve Campbell from the other place

He later references https://www.climate.gov/news-features/understanding-climate/understanding-arctic-polar-vortex

https://twitter.com/historian_steve/status/1745920780624711886?s=46&t=4TnCHrl_NkgPDLmdROH8hA

Understanding the Arctic polar vortex

Polar vortex expert Amy Butler and Arctic expert James Overland offer perspectives on the February cold snap in the southern U.S., the polar vortex, and how the Arctic might influence mid-latitude weather.

NOAA Climate.gov
Jan 14, 2024 at 3:27amIvory for iOS
Show threadpaulJan 14, 2024
@kcarruthers
Show threadWes MontageJan 14, 2024
@kcarruthers Today's polar vortex (10hPa) and jet stream (250hPa). Normally, the polar vortex is a nominally circular low pressure zone. The stronger vortex to the right of the first image is the low, rotating counterclockwise. It looks as though it may split into two separate vortices. The high pressure zone on the left looks unusual. Can any experts comment, please. The second image is the jet stream, which is way beyond wavy. It has two major cells and crosses the north pole.
Show threadWes MontageJan 14, 2024
@kcarruthers Images from
https://earth.nullschool.net/#current/wind/isobaric/10hPa/orthographic=271.17,90.93,513/loc=146.489,31.680
and
https://earth.nullschool.net/#current/wind/isobaric/250hPa/orthographic=271.17,90.93,513/loc=146.489,31.680
earth :: a global map of wind, weather, and ocean conditions

See current wind, weather, ocean, and pollution conditions, as forecast by supercomputers, on an interactive animated map. Updated every three hours.

Show threadWes MontageJan 14, 2024
@kcarruthers Sorry, I meant to say the vortex on the LEFT was the high pressure area in the first image. I was not able to edit and correct its ALT TEXT.
Show threadPedro Quixote ‽ aka MultiVaxJan 14, 2024
@Wes_Montage @kcarruthers What's going on here? There doesn't appear to be anything on the map that would create this disturbance of airflow
Show threadJoshJan 14, 2024
@Wes_Montage @kcarruthers I'm not an expert but a slight enthusiast - there is indeed a split in progress, the stratospheric polar vortex is currently not in a strong state. Though that in itself is something that happens from time to time in normal circumstances; whether climate change is weakening the jet stream is still a matter of scientific debate I think(?). But certainly the broad picture of increased extremes is pretty settled.
Show threadJoshJan 14, 2024

@Wes_Montage @kcarruthers Strat vortex splits are related to a phenomenon called Sudden Stratospheric Warming. I think that's also the reason for that high pressure area - the low of the vortex is displaced to the side.

Worth noting the polar vortex in the stratosphere isn't the same as the polar vortex in the troposphere (which is bringing those cold temps at the moment I think) but the two are connected in the atmosphere. That's where my armchair knowledge ends!!

https://en.wikipedia.org/wiki/Sudden_stratospheric_warming?wprov=sfla1

Sudden stratospheric warming - Wikipedia

Show threadoberonsghostJan 14, 2024
@kcarruthers @platypusparent And when there’s more water at the poles, there’s more moisture in the air, and when the temperature drops, it’s going to precipitate out.
Show threadN3r0Jan 14, 2024
@kcarruthers dont want to question the conclusion, But the 'stabile vortex' seems to be phantasy. Show me more than 3 days in a row of exiating measurements where the Polar jet streamer is that stable.
Edit: below are real wrong colour Wind apeed images. One show the typically distorted egg shape.
Show threadTim MooreJan 14, 2024
@kcarruthers without this air mixing, the mid latitudes and tropics would be even hotter than they are. Earth is trying to achieve balance, as we throw it out of balance.
Show threadAngrySexagenarianJan 14, 2024

@kcarruthers
I'm in my mid 60ies.
I learnt about the greenhouse phenomenon and what causes it in primary school.
How is it that >50 years later, there are still a vast number of people including in the political elite and corporate board rooms who don't know the difference between weather and climate, between fact and fiction, between science and religion, between 'for the people' and political self-interest?
Fucking capitalism is why.

#Venceremos

Show threadRodneyPetersonTalentAgencyJan 14, 2024

@kcarruthers

This absolute brilliant brain trust Senator from Oklahoma disagrees with you and to prove all you scientists wit yur fancy desgrees and larnin are all wrong he brought you a snowball and a really big pikture to prove it:

https://youtu.be/3E0a_60PMR8?si=peRrhjBsUAQ0V117

Sen. James Inhofe (R-OK) Snowball in the Senate (C-SPAN)

YouTube
Show thread🅺🅸🅼 🆂🅲🅷🆄🅻🆉:~$ ▓Jan 15, 2024
@RodneyPetersonTalent @kcarruthers is low IQ a requirement for becoming a Senator? et seems like most senators show signs of stupidity.
Show threadCavyherdJan 15, 2024

@RodneyPetersonTalent @kcarruthers

I'm reminded of that time I think it was Senator Allard came to the research center I worked at at the time to talk to us about "global warming" and argue that it was all hokum. "Why, we exhale carbon dioxide all the time! How can it be a pollutant??"

One of my deepest regrets is that it didn't occur to me at the time to say, "Okay, if you think CO2 is so harmless, let's tie a plastic bag over your head and see how long you feel that way."

Show threadTroed SångbergJan 14, 2024
@kcarruthers Aren't the two modes of the polar vortex ("circular" and "petals") well known to happen regardless of human caused climate change?
Show threadNoel KellyJan 14, 2024

@kcarruthers

It all peaches!

Show threadwlf_warrenJan 14, 2024
@kcarruthers Yes; Thank you, I remember we talked about this before, to make citizens of the world! aware. Appreciate the reminder. 👍
Show threadDavid John CrookJan 14, 2024
@kcarruthers Also a weakening of the Gulf Stream and it's moderating effect on the climate of Western Europe.
Climate change, colder winters and coastal flooding from rising sea levels. Yet capitalism demands we carry on as if nothing is happening.
Show threadKim Possible Jan 14, 2024
@kcarruthers everything is out of control. We have lost our equilibrium. And not just us. Think of the entire ecosystem.
Show threadpotpieJan 14, 2024
@kcarruthers paraphrasing a post I saw a long time ago: "All you people saying we're sinking are alarmists; my half of the boat just went UP a hundred feet! Sinking, my ass!"
Show threaddr2chaseJan 14, 2024
@kcarruthers See also, a dozen years ago: http://earlywarn.blogspot.com/2012/04/slowing-rossby-waves-leading-to-extreme.html
Slowing Rossby Waves Leading to Extreme Weather?

Rational Analysis of Global Civilizational Risk

Show threadCavyherdJan 15, 2024

@kcarruthers

Next up: Gulf Stream shutdown! 👀

Show threadRichie EnamellerJan 23, 2024
@kcarruthers @GottaLaff