Uploaded September 2025 | Updated September 2026, 2 weeks ago
Jet Stream Weirdness: Detailed Overview on the Latest Science and Effects
1. Southern Hemisphere Jet Stream wind speeds have increased, and the jet stream has moved consistently southward (poleward). Half of the shift is directly attributable to global warming; the other half results from indirect factors like tropical Pacific warming, upper tropical atmosphere changes, and strengthening stratospheric winds.
2. North Pacific jet stream has shifted northward since 1979, contributing to extreme events such as wildfires in western North America. Current climate models fail to reproduce the full magnitude of this trend.
3. North Atlantic Jet Stream and Storm Tracks: Models predict southward shifts of the upper-level North Atlantic jet stream and increased speed over Europe. Future climate scenarios suggest the subtropical jet stream will experience an upward shift driven by higher global sea surface temperatures, leading to a warmer and deeper troposphere.
4. Jet stream waviness and erratic behavior are not solely a consequence of climate change—historically, similar or even greater waviness occurred prior to significant anthropogenic influence.
Several new studies look at jet stream waviness going back 125 years and even 600 years, showing periods of high waviness in the past.
5. Minimal influence of future Arctic sea ice loss has been found on North Atlantic jet stream strength and waviness in some models. Shifts in the Atlantic jet stream remain directly linked to the occurrence of extreme weather events in Europe, including droughts and floods.
Please donate to PaulBeckwith.net to support my research and videos connecting the dots on abrupt climate system mayhem.
Please subscribe to my YouTube channel. As well as my website, and YouTube, you can find me on Patreon, Facebook, Twitter/X, LinkedIn, Instagram, Reddit (multiple climate channels within), Quora, TikTok, Discord, Mastodon, Twitch, Vimeo, Bluesky, TruthSocial, Threads, Substack, Tumblr, Pinterest, etc...
Links:
Phys.org article: New insights into the jet stream make better climate predictions possible
phys.org/news/2025-07-insights-jet-stream-climate.html
Article: Jet stream study set to improve future climate predictions
physicsworld.com/a/jet-stream-study-set-to-improve-future-climate-predictions
Peer-reviewed paper in PNAS: Explaining and predicting the Southern Hemisphere eddy-driven jet
pnas.org/doi/abs/10.1073/pnas.2500697122
Science blog: Is climate change shifting the North Pacific jet stream?
blogs.reading.ac.uk/weather-and-climate-at-reading/2025/is-climate-change-shifting-the-north-pacific-jet-stream
Peer-reviewed paper: Climate Models Struggle to Simulate Observed North Pacific Jet Trends, Even Accounting for Tropical Pacific Sea Surface Temperature Trends
agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL113561
Peer-reviewed paper: Exploring Uncertainty of Trends in the North Pacific Jet Position
agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL109500
Peer-reviewed paper: The future North Atlantic jet stream and storm track: relative
contributions from sea ice and sea surface temperature changes: wcd.copernicus.org/articles/6/669/2025/wcd-6-669-2025.pdf
Website: Climate Relevant interactions and feedbacks: the key role of sea ice and Snow in the polar and global climate system: https://www.crices-h2020.eu/
Dartmouth Science Paper: Study: Winter Jet Stream Was Erratic Before Climate Change
https://home.dartmouth.edu/news/2025/06/study-winter-jet-stream-was-erratic-climate-change
Peer-reviewed paper: A Wavier Polar Jet Stream Contributed to the Mid-20th Century Winter Warming Hole in the United States: agupubs.onlinelibrary.wiley.com/doi/10.1029/2024AV001399
Article: Jet stream responsible for extreme weather
https://mediarelations.unibe.ch/media_releases/2025/media_releases_2025/jet_stream_responsible_for_extreme_weather/index_eng.html
Peer-reviewed paper: Past hydroclimate extremes in Europe driven by Atlantic jet stream and recurrent weather patterns: nature.com/articles/s41561-025-01654-y
Peer-reviewed paper: Fast-get-faster explains wavier upper-level jet stream under climate change
nature.com/articles/s43247-024-01819-4
Peer-reviewed paper: Fast upper-level jet stream winds get faster under climate change
nature.com/articles/s41558-023-01884-1
Article: Advancing Our Understanding of Eddy-driven Jet Stream Responses to Climate Change – A Roadmap: ora.ox.ac.uk/objects/uuid:93817649-3afa-483d-b145-618f1ee736cb
Peer-reviewed paper: Emerging signals of climate change from the equator to the poles: new insights into a warming world
frontiersin.org/journals/science/articles/10.3389/fsci.2024.1340323/full
Peer-reviewed paper: Minimal influence of future Arctic sea ice loss on North Atlantic
jet stream morphology: wcd.copernicus.org/articles/6/595/2025/wcd-6-595-2025.pdf
Jet Stream Weirdness: Detailed Overview on the Latest Science and Effects
1. Southern Hemisphere Jet Stream wind speeds have increased, and the jet stream has moved consistently southward (poleward). Half of the shift is directly attributable to global warming; the other half results from indirect factors like tropical Pacific warming, upper tropical atmosphere changes, and strengthening stratospheric winds.
2. North Pacific jet stream has shifted northward since 1979, contributing to extreme events such as wildfires in western North America. Current climate models fail to reproduce the full magnitude of this trend.
3. North Atlantic Jet Stream and Storm Tracks: Models predict southward shifts of the upper-level North Atlantic jet stream and increased speed over Europe. Future climate scenarios suggest the subtropical jet stream will experience an upward shift driven by higher global sea surface temperatures, leading to a warmer and deeper troposphere.
4. Jet stream waviness and erratic behavior are not solely a consequence of climate change—historically, similar or even greater waviness occurred prior to significant anthropogenic influence.
Several new studies look at jet stream waviness going back 125 years and even 600 years, showing periods of high waviness in the past.
5. Minimal influence of future Arctic sea ice loss has been found on North Atlantic jet stream strength and waviness in some models. Shifts in the Atlantic jet stream remain directly linked to the occurrence of extreme weather events in Europe, including droughts and floods.
Please donate to PaulBeckwith.net to support my research and videos connecting the dots on abrupt climate system mayhem.
Please subscribe to my YouTube channel. As well as my website, and YouTube, you can find me on Patreon, Facebook, Twitter/X, LinkedIn, Instagram, Reddit (multiple climate channels within), Quora, TikTok, Discord, Mastodon, Twitch, Vimeo, Bluesky, TruthSocial, Threads, Substack, Tumblr, Pinterest, etc...
Links:
Phys.org article: New insights into the jet stream make better climate predictions possible
phys.org/news/2025-07-insights-jet-stream-climate.html
Article: Jet stream study set to improve future climate predictions
physicsworld.com/a/jet-stream-study-set-to-improve-future-climate-predictions
Peer-reviewed paper in PNAS: Explaining and predicting the Southern Hemisphere eddy-driven jet
pnas.org/doi/abs/10.1073/pnas.2500697122
Science blog: Is climate change shifting the North Pacific jet stream?
blogs.reading.ac.uk/weather-and-climate-at-reading/2025/is-climate-change-shifting-the-north-pacific-jet-stream
Peer-reviewed paper: Climate Models Struggle to Simulate Observed North Pacific Jet Trends, Even Accounting for Tropical Pacific Sea Surface Temperature Trends
agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL113561
Peer-reviewed paper: Exploring Uncertainty of Trends in the North Pacific Jet Position
agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL109500
Peer-reviewed paper: The future North Atlantic jet stream and storm track: relative
contributions from sea ice and sea surface temperature changes: wcd.copernicus.org/articles/6/669/2025/wcd-6-669-2025.pdf
Website: Climate Relevant interactions and feedbacks: the key role of sea ice and Snow in the polar and global climate system: https://www.crices-h2020.eu/
Dartmouth Science Paper: Study: Winter Jet Stream Was Erratic Before Climate Change
https://home.dartmouth.edu/news/2025/06/study-winter-jet-stream-was-erratic-climate-change
Peer-reviewed paper: A Wavier Polar Jet Stream Contributed to the Mid-20th Century Winter Warming Hole in the United States: agupubs.onlinelibrary.wiley.com/doi/10.1029/2024AV001399
Article: Jet stream responsible for extreme weather
https://mediarelations.unibe.ch/media_releases/2025/media_releases_2025/jet_stream_responsible_for_extreme_weather/index_eng.html
Peer-reviewed paper: Past hydroclimate extremes in Europe driven by Atlantic jet stream and recurrent weather patterns: nature.com/articles/s41561-025-01654-y
Peer-reviewed paper: Fast-get-faster explains wavier upper-level jet stream under climate change
nature.com/articles/s43247-024-01819-4
Peer-reviewed paper: Fast upper-level jet stream winds get faster under climate change
nature.com/articles/s41558-023-01884-1
Article: Advancing Our Understanding of Eddy-driven Jet Stream Responses to Climate Change – A Roadmap: ora.ox.ac.uk/objects/uuid:93817649-3afa-483d-b145-618f1ee736cb
Peer-reviewed paper: Emerging signals of climate change from the equator to the poles: new insights into a warming world
frontiersin.org/journals/science/articles/10.3389/fsci.2024.1340323/full
Peer-reviewed paper: Minimal influence of future Arctic sea ice loss on North Atlantic
jet stream morphology: wcd.copernicus.org/articles/6/595/2025/wcd-6-595-2025.pdf
