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Jonathan Wille

@jonathanwille.bsky.social
1.1K followers 545 following 121 posts

❄️ Polar meteorologist and climatologist. Studying #polar #meteorology #climatology with focus on atmospheric rivers, mass balance impacts, and high-res climate modeling. Post-doc researcher at Université de Bourgogne Franche Comté.

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Reposted by Jonathan Wille
Dr. Aaron Thierry @thierryaaron.bsky.social · 10h
“What we are seeing now is a complete explosion of these melt rates, leading to the disintegration of glaciers. They’re really just falling apart.” #Switzerland 🇨🇭 #ClimateEmergency
theguardian.com
‘Explosion of melt rates’: 20% of Swiss glaciers lost in five years
Alpine regions in Europe experiencing extreme glacier collapse due to heat-trapping effects of fossil fuel pollution
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Jonathan Wille @jonathanwille.bsky.social · 30/09/2026
So anybody else noticing the medicane being spun up by the ICON? All runs the past 24 hours have indicated a medicane forming off the coast of Spain over the weekend. Any other models showing the same thing?
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Dr. Serge Zaka @sergezaka.bsky.social · 30/09/2026
Une alerte météorologique "extrême", pour reprendre le terme du message FR-Alert reçu sur les téléphones pour toute la population, est en cours dans le Gard et l'Hérault. Les dernières prévisions sont terrifiantes entre 300 et 400mm de pluie en villes. La population est invitée à se confiner.
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Francois Jobard @francoisjobard.bsky.social · 23/09/2026
Cette semaine on devrait toucher le fond niveau #sécheresse. Un tout début d'amélioration pluvieuse reste envisageable la semaine prochaine. Derrière cette "situation record" (Météo-France) : une mortalité des arbres sans exemple ! Dans le bois de Vincennes l'agonie des hêtres devient générale. 🥲
Évolution de l'indicateur national de sécheresse des sols en France. Graphe Meteo-France
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Melaine Le Roy @subfossilguy.bsky.social · 15/09/2026
🧊🔥 6 meters !🔥🧊 This is what the largest glacier in the Alps has lost at Konkordiaplatz at 2900 m asl during the insane 2026 summer ! 'No words' as @matthias-huss.bsky.social (pictured here) said! 😲😱 📷 A. Linsbauer
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Joackiie 🇬🇱 @joackiie.bsky.social · 06/09/2026
Climatological summer 2026 (for accounting purposes, the period from 1 June to 31 August) was record-warm and dry across western and southern Europe — but NOT in northern and eastern Europe.
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Robert Rohde @rarohde.bsky.social · 04/09/2026
Was the tragedy in Nepal and Tibet due, in part, to climate change? My view is probably yes. The connection remains circumstantial and lacks a smoking gun, but the circumstances certainly make it seem likely. 17/
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Météo-France @meteofrance.com · 03/09/2026
📢 Eté 2026 : le plus chaud jamais enregistré en France et le deuxième le moins pluvieux avec une sécheresse des sols sans précédents. 🌐 Un été qui aurait été quasi impossible sans changement climatique mais qui reste rare dans le climat actuel Le bilan complet 👉 meteofrance.com/presse/bilan...
Evolution des températures en france depuis le 15 mai 2026 , des températures largement au dessus des normales
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Sébastien Brana @sebastienbrana.bsky.social · 30/08/2026
Vidéo incroyable de la formation de la tornade de Pomas, et son arrivée sur la commune capturée par les caméras de surveillance de l'entreprise Robert : www.youtube.com/watch?v=EW7h...
youtube.com
Tornade Pomas 2026 D5 Stock Côté SUD
YouTube video by Sébastien ARTUSO
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Francois Jobard @francoisjobard.bsky.social · 29/08/2026
Anomalie de géopotentiel à 500 hPa sur les 100 derniers jours sur un domaine Atlantique/Europe -> La France en rouge pour illustrer la récurrence des blocages chauds, c'est-à-dire l'acharnement caniculaire de cet été. (1/2) psl.noaa.gov/cgi-bin/data...
anomalie de géopotentiel à 500 hPa sur la période 20 mai - 27 août 2026 : la France championne des anomalies anticycloniques
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Keraunos @keraunos.org · 28/08/2026
🌪️ #Tornade de Pomas dans l'Aude : l'analyse des dommages permet de conclure à une intensité EF3 (220-240 km/h). Distance parcourue : 6 km. Plus de détails dans le dossier complet à venir. 🙏🏻 D. Martens pour sa contribution à l'enquête de terrain.
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Martin Jucker @drjucker.bsky.social · 26/08/2026
Some serious warm air being pushed onto Antarctica at the moment. viz from martinjucker.com, data from GFS. #weather #antarctica #sciviz
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Melaine Le Roy @subfossilguy.bsky.social · 22/08/2026
Unprecedented... 70 days! France has just ended yesterday the longest series above the norm (1991-2020) ever measured! 🥵 Four heat waves—and another one before that, in May… That’s what our future will look like—only worse! 😱 📈 via Nicolas Berrod
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Nahel Belgherze @wxnb.bsky.social · 21/08/2026
70 straight days with above-average temperatures in France. Let that sink in.
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Jonathan Wille @jonathanwille.bsky.social · 20/08/2026
1/ In support of a recently published article in @nature.com on extreme weather in East Antarctica, I wrote a News and Views article summarizing how a recent pause in Antarctic mass loss was being driven by a temporary increase in sea surface temperatures in one region of the tropics. rdcu.be/fAQ8t
rdcu.be
The Antarctic ice sheet has gained mass — but probably not for long | Nature
Since 2020, snowfall has largely counterbalanced the melting of the Antarctic ice sheet. The atmospheric effect that causes this has been identified — and it’s temporary.
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Jonathan Wille @jonathanwille.bsky.social · 12/08/2026
After the 5th heatwave in France, it looks like a real, genuine pattern change will arrive next week, finally breaking the cycle of record breaking, hellish heat, and then short lived periods of still above temperatures. Most importantly, an Atlantic flow will break much needed rain to France. 1/
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Francois Jobard @francoisjobard.bsky.social · 31/07/2026
Les chances de pluie à moyenne échéance sur les modèles cet été 2026...
Tintin au pays de l'or noir. Planche 20. Dupond et Dupont en jeep rouge semblent apercevoir un lac quittent leur véhicule et leurs costumes pour sauter dans le plan d'eau qui n'existe pas en réalité.
https://www.tintin.com/fr/characters/dupond-et-dupont#
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Francois Jobard @francoisjobard.bsky.social · 29/07/2026
🌡Aujourd'hui est déjà le 16ème jour >= 35 °C de l'été 2026 à #Paris, un chiffre hallucinant et sans précédent. Pour mettre ce chiffre en perspective, 16 jours >= 35 °C, c'est plus que le cumul de TOUS LES ÉTÉS des années 1960, 1970, 1980, 1990, soit en 40 ans seulement 15 occurrences dont 2 en 1976
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Aaron Sojourner @aaronsojourner.org · 25/07/2026
Admirable clarity @science.org
The Trump administration hates academic science funding, full stop. They hate where that money goes, and they hate who it goes to. They want to keep all that money for themselves, to hand out to favored cronies who can help them get elected and to steer yet more money and more power back into their hands.

That’s it. That’s the story
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Simon Ferrigno @brexcyclopaedia.bsky.social · 21/07/2026
Disaster tourism theconversation.com/i-cant-work-...
theconversation.com
‘I can’t work in the farce of climate change cruise tourism anymore’: why Antarctic guides quit their dream jobs
The moral struggles of guiding tourists through a pristine landscape.
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Denis Mongin @denismongin.bsky.social · 10/07/2026
The record breaking temperatures in France of this 2026 summer, compared to all daily temperatures since 1950 #Rstats #dataviz #climate A periodic yoyo breaking through the roof each time
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Jonathan Wille @jonathanwille.bsky.social · 10/07/2026
Being a meteorologist in France this summer has been a cruel joke. Staring at the forecast models, they always offer hope that the heatwave will end. But they always slide back to a cutoff low off the coast of Portugal leading to a "heat pump" like we are currently dealing with.
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Dakota Smith @weatherdak.bsky.social · 10/07/2026
The beautiful life cycle of a storm at sea.
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Carl Quintanilla @carlquintanilla.bsky.social · 04/07/2026
“.. Members of the group Patriot Front ride the metro on the 250th anniversary of U.S. independence in Washington, D.C.” @reuters.com
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Jonathan Wille @jonathanwille.bsky.social · 28/06/2026
France just went through the worst heatwave in its history. Preliminary 1,300 excess deaths across Europe and just general misery for over a week. Now it looks likely to repeat in one week. The climate is truly broken here.
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 28/06/2026
Enjoy the coming relatively cool week in Western Europe while it lasts! Forecast for 8 July 🥵.
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Met4Cast @met4cast.net · 23/06/2026
France recorded a high of 44.6°C today. That’s so far beyond anything seen in the historical record, a 4.2 sigma deviation from the norm that it gives a return period of 87 thousand years. It’s really difficult to convey just how utterly extreme this is.
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Jonathan Wille @jonathanwille.bsky.social · 22/06/2026
Can confirm that in my office in Grenoble, my brain has officially melted.
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Jeff Berardelli @weatherprof.bsky.social · 22/06/2026
7 all-time records (black) reached so far in #France upto 42C (108F) so far today!! Dozens of June records broken across #Europe #heatwave
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Martin Stendel @martinstendel.bsky.social · 19/06/2026
Animated forecast from @ecmwf.int showing 500 hPa geopotential anomalies for the next 15 days. Very stable Ω blocking over central Europe with "cold feet" west and east of it. For large parts of Europe this means a strong heat wave over the next two weeks.
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Dr. Serge Zaka @sergezaka.bsky.social · 18/06/2026
[Thread] [1/7] Avec 40-43+°C sur plusieurs jours, nous ne sommes plus sur un simple évènement météorologique, mais un évènement qui aura des conséquences catastrophiques pour la vie animale et végétale. Je pèse mes mots : ce qu'il va se passer en France est sans précédent.
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Jonathan Wille @jonathanwille.bsky.social · 17/06/2026
Just more evidence that "warm" weather today means record breaking heatwave and "cool" weather means the temperatures are near average.
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Tobias Braun @scitobias.bsky.social · 12/06/2026
In our new highlighted paper in Earth System Dynamics, we map out the global atmospheric river network along with its main hubs, highways and basins! What emerges is a surprisingly structured system that we think could open up new perspectives on atmospheric connectivity💨🌧️ doi.org/10.5194/esd-...
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Jonathan Wille @jonathanwille.bsky.social · 12/06/2026
I'm starting to get real nervous about a potential catastrophic heatwave in France next week. The ECMWF and GFS have been trending towards a record breaking heat scenario peaking during the Fete de la Musique. Still early, but the current forecast is 37-44C in the Paris area from June 18-24.
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Amy McGovern @profamymcgovern.bsky.social · 12/06/2026
NY times covered our cut today (gift article) www.nytimes.com/2026/06/12/s...
nytimes.com
She Used A.I. to Improve Forecasts for Extreme Weather
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Dana Bergstrom @danambergstrom.bsky.social · 11/06/2026
This is not “very strange” but a very shouty WTF! 🧵 Temps should below freezing -mean air temp Esperanza for June about -11°C, not +15°C 😱 Conditions should be frigid!!!! 🥶 It’s approaching midwinter ffs! Days are very short this far north in the Antarctic Peninsula ( ~5 hrs) 1/
theguardian.com
Record winter temperatures in Antarctic raise fears over speed of climate breakdown
Temperatures above 15C ‘very strange’ say scientists, as snow melts and rain falls on glaciers in usually frozen region
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Nahel Belgherze @wxnb.bsky.social · 31/05/2026
Hard to believe I’m even writing this. Meteorological summer hasn’t even begun, yet Paris, France has already logged more days above 32°C than its annual average.
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David Ho @davidho.bsky.social · 29/05/2026
This is one of the most insane things I’ve seen from this regime. Please read this excellent summary and comment in the federal registry. 🧪🌊
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Jonathan Wille @jonathanwille.bsky.social · 28/05/2026
I do wonder if the changes we are making to our climate magically cooled the planet instead of warming it, would people pay more attention?
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MetJam @metjam.co.uk · 27/05/2026
Oxford, the longest running continuous weather station in UK history, with temperature observations stretching back to 1815, has preliminarily broken its maximum temperature record for May yesterday by OVER 3ºC with a temperature of 33.7ºC. Unprecedented in its 211-year history.
Spaghetti chart showing Oxford Radcliffe Observatory daily maximum temperatures for every day of the year from 1815 to 2026. 211 years of historical data are shown as very faint grey lines tracing a seasonal cycle from around 5°C in winter to a summer peak of roughly 25–30°C in July and August. A blue smoothed 30-day mean line highlights the average annual temperature cycle. The 2026 line is shown in bold red, running from January through to late May before spiking sharply upward to reach 33.7°C on 26 May, well above the entire historical grey envelope for that time of year. A single dashed red reference line marks the previous May record of 30.6°C set on 29 May 1944. The 2026 reading exceeds this by 3.1°C and, in statistical terms, is the 6th most anomalous maximum temperature in Oxford's 211-year record, ranking as the most anomalous May maximum ever observed and coming within 0.6°C of the all-time June record of 34.3°C set in 1976.
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Lukas Brunner @lukasbrunner.bsky.social · 08/05/2026
If you are like me and prefer to read the typeset version of papers, here you go: the final version is out fresh from the print 😊 www.nature.com/articles/s43...
Screenshot of the title page of the article entitled: Three decades of simulating global temperature patterns with coupled global climate models
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Erich Fischer @erichfischer.bsky.social · 26/05/2026
Yet another example of record-shattering heat with both day- and nighttime records being broken by large margins. A distinct signal of the high warming rate.
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Lars Lowinski @larswx.bsky.social · 19/05/2026
Major pattern shift ahead across W and central Europe after a prolonged cool and unsettled spell. Upper geopotential heights are likely to reach record levels early next week. #weather
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Copernicus ECMWF @copernicusecmwf.bsky.social · 05/05/2026
❄️In 2025, much of Europe saw fewer snow days than average, while end‑of‑season snow cover extent was 31% below average and snow mass 45% below, both the 3rd lowest in 42 years. 🔗 More info climate.copernicus.eu/esotc/2025/s... @ecmwf.int & @wmo-global.bsky.social #CopernicusClimate
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Dr. Diana Francis @drdianafrancis.bsky.social · 02/05/2026
www.linkedin.com/posts/dr-dia... Join us at the Polar Meteorology & Climate Session on Monday morning Room L2, poster on Tuesday Hall X5 @egu.eu @egu-cr.bsky.social @hs.egu.eu @agu.org @scar-antarctic.bsky.social @mrvandenbroeke.bsky.social @michelle-maclennan.bsky.social @jonathanwille.bsky.social
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Jonathan Wille @jonathanwille.bsky.social · 23/04/2026
If true, this certainly would cement the Iranian war as an inflection point for the green energy transition. The jump in the solar panel exports is remarkable!
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Lukas Brunner @lukasbrunner.bsky.social · 21/04/2026
🚨 New paper: Three decades of simulating global temperature patterns with coupled global climate models 💡 Some of the latest km-scale models perform similarly to obs 💡 Reference choice starts to dominate for the latest models 💡 Resolution matters but is not everything www.nature.com/articles/s43...
nature.com
Three decades of simulating global temperature patterns with coupled global climate models - Communications Earth & Environment
Increasing spatial resolution of climate models has the potential to improve the performance of simulating global surface temperature patterns, based on comparisons between kilometer-scale models, est...
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Centre for Research on Energy and Clean Air @creacleanair.bsky.social · 15/04/2026
🌐 NEW | Analysis: Global fossil power generation fell in March after Hormuz closure due to solar & wind growth ⚠️ Fall in gas-fired generation offset by large increases in solar & wind power, not coal w/CREA's @laurimyllyvirta.bsky.social energyandcleanair.org/fossil-power...
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Melaine Le Roy @subfossilguy.bsky.social · 11/04/2026
'Le glacier inférieur de Grindelwald' Aimé Civiale 1859 In these times of unseasonal heat (that everyone confuses with spring!), let's feel the fresh breeze of the lowest ice in the Alps, that reached 980 m asl! 🧊🤍 (today more than 3.5 km behind 📈 ) Pictured here 3 yrs after the last LIA max.! 📷
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CIIMAR @ciimar.bsky.social · 12/02/2026
The 2026 International Atmospheric River Conference (𝗜𝗔𝗥𝗖𝟮𝟬𝟮𝟲) is coming to Porto, Portugal! 📅 19–23 October 2026 | 📍 Alfândega Congress Centre + virtual option Join the conversation on atmospheric rivers and their impact on water, weather extremes, and climate resilience.
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