Stella Bourdin
@stella-bourdin.bsky.social
Climate Scientist and Energy Engineer, Postdoctoral Researcher @oxfordphysics.bsky.social. Specialist in Tropical Cyclones 🌀
Views are my own.
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Views are my own.
🇨🇵
(Banner made with: scholargoggler.com)
Pinned
The HuracanPy JOSS paper is officially out! 🌀
If you ever find yourself working with cyclone track data, we hope you'll find it useful! Feel free to contribute suggestions and code!
doi.org/10.21105/jos...
If you ever find yourself working with cyclone track data, we hope you'll find it useful! Feel free to contribute suggestions and code!
doi.org/10.21105/jos...
Reposted by Stella Bourdin
Le changement climatique (CC) n'augmente pas le nombre de cyclones mais la proportion des +intenses. Dit autrement, le CC inhibe en moyenne la formation des cyclones mais quand ils se forment, ils s'intensifient +rapidement, sont de catégories +élevées avec des effets (inondations...) démultipliés.
Sunrise on Hurricane Melissa.
Melissa is now a Category 4 storm with sustained winds of 140 mph.
Melissa is now a Category 4 storm with sustained winds of 140 mph.
October 26, 2025 at 3:38 PM
Le changement climatique (CC) n'augmente pas le nombre de cyclones mais la proportion des +intenses. Dit autrement, le CC inhibe en moyenne la formation des cyclones mais quand ils se forment, ils s'intensifient +rapidement, sont de catégories +élevées avec des effets (inondations...) démultipliés.
Reposted by Stella Bourdin
Here’s a 48-hour water vapor loop of Ex-Hurricane Erin spinning on its final approach to Europe. Truly mesmerizing.
August 26, 2025 at 10:58 AM
Here’s a 48-hour water vapor loop of Ex-Hurricane Erin spinning on its final approach to Europe. Truly mesmerizing.
The HuracanPy JOSS paper is officially out! 🌀
If you ever find yourself working with cyclone track data, we hope you'll find it useful! Feel free to contribute suggestions and code!
doi.org/10.21105/jos...
If you ever find yourself working with cyclone track data, we hope you'll find it useful! Feel free to contribute suggestions and code!
doi.org/10.21105/jos...
July 9, 2025 at 2:35 PM
The HuracanPy JOSS paper is officially out! 🌀
If you ever find yourself working with cyclone track data, we hope you'll find it useful! Feel free to contribute suggestions and code!
doi.org/10.21105/jos...
If you ever find yourself working with cyclone track data, we hope you'll find it useful! Feel free to contribute suggestions and code!
doi.org/10.21105/jos...
Reposted by Stella Bourdin
Qques mots forts que j'ai prononcés avec émotion @franceinfo.fr
C'est un mensonge de laisser croire que l'on s'adaptera sans casse irréversible dans une France à 4°C. On ne s'adapte pas a un effondrement de la biodiversité; on meurt avec!
Les régressions actuelles sont irresponsables & suicidaires.
C'est un mensonge de laisser croire que l'on s'adaptera sans casse irréversible dans une France à 4°C. On ne s'adapte pas a un effondrement de la biodiversité; on meurt avec!
Les régressions actuelles sont irresponsables & suicidaires.
"Ce qu’on est en train de vivre aujourd’hui, c’est les trajectoires qu’on avait imaginées il y a 20 ans. La communauté des climatologues n’est pas du tout surprise par la vague de chaleur qui arrive. Elle est effrayée." @cassouman40.bsky.social ce matin sur @franceinfo.fr #VagueDeChaleur #DontLookUp
June 20, 2025 at 7:29 PM
Qques mots forts que j'ai prononcés avec émotion @franceinfo.fr
C'est un mensonge de laisser croire que l'on s'adaptera sans casse irréversible dans une France à 4°C. On ne s'adapte pas a un effondrement de la biodiversité; on meurt avec!
Les régressions actuelles sont irresponsables & suicidaires.
C'est un mensonge de laisser croire que l'on s'adaptera sans casse irréversible dans une France à 4°C. On ne s'adapte pas a un effondrement de la biodiversité; on meurt avec!
Les régressions actuelles sont irresponsables & suicidaires.
Reposted by Stella Bourdin
Il est cynique d'invoquer le changement climatique quand cela arrange pour invisibiliser les autres causes des catastrophes liées à des choix historiques&politiques (vulnérabilités). Raisonner ainsi actera l’échec de l'adaptation. Nous climatologues, le dénonçons!
Fil🧵
www.lemonde.fr/idees/articl...
Fil🧵
www.lemonde.fr/idees/articl...
« A Mayotte ou Valence, en Espagne, il serait réducteur d’attribuer la gravité des dégâts matériels et humains uniquement au changement climatique »
TRIBUNE. Ne se concentrer que sur le rôle du changement climatique tend à invisibiliser les autres causes fondamentales des catastrophes dites « naturelles », très souvent liées à des choix historique...
www.lemonde.fr
December 27, 2024 at 11:33 AM
Il est cynique d'invoquer le changement climatique quand cela arrange pour invisibiliser les autres causes des catastrophes liées à des choix historiques&politiques (vulnérabilités). Raisonner ainsi actera l’échec de l'adaptation. Nous climatologues, le dénonçons!
Fil🧵
www.lemonde.fr/idees/articl...
Fil🧵
www.lemonde.fr/idees/articl...
The storm's remnants meandered until they reached the Portuguese coast, where they dissipated.
There, they brought heavy rains (up to 84mm/24h), and numerous incidents were reported including downed trees and flash floods. One man was injured.
There, they brought heavy rains (up to 84mm/24h), and numerous incidents were reported including downed trees and flash floods. One man was injured.
December 24, 2024 at 1:42 PM
The storm's remnants meandered until they reached the Portuguese coast, where they dissipated.
There, they brought heavy rains (up to 84mm/24h), and numerous incidents were reported including downed trees and flash floods. One man was injured.
There, they brought heavy rains (up to 84mm/24h), and numerous incidents were reported including downed trees and flash floods. One man was injured.
Danielle was identified as Tropical Storm Danielle on Sept. 1st. It became a hurricane the next day. It sustained itself for a few days thanks to abnormally warm waters and light shear, alternating between tropical storm and cat. 1. On Sept. 8, it finally transitioned into an extra-tropical cyclone.
December 24, 2024 at 1:42 PM
Danielle was identified as Tropical Storm Danielle on Sept. 1st. It became a hurricane the next day. It sustained itself for a few days thanks to abnormally warm waters and light shear, alternating between tropical storm and cat. 1. On Sept. 8, it finally transitioned into an extra-tropical cyclone.
📆 Ex-hurricanes advent calendar day 24/24: Danielle 2022. 🌀
Last of our series is Danielle 2022! Another subtropical storm, which caused flooding and landslides in Portugal.
Last of our series is Danielle 2022! Another subtropical storm, which caused flooding and landslides in Portugal.
December 24, 2024 at 1:42 PM
📆 Ex-hurricanes advent calendar day 24/24: Danielle 2022. 🌀
Last of our series is Danielle 2022! Another subtropical storm, which caused flooding and landslides in Portugal.
Last of our series is Danielle 2022! Another subtropical storm, which caused flooding and landslides in Portugal.
Reposted by Stella Bourdin
"Chaque désastre est devenu une opportunité pour faire triompher ses valeurs, son idéologie et ses convictions, quitte à se livrer parfois à une instrumentalisation écœurante."
Analyse de @magalireghezza.bsky.social sur la situation à Mayotte
bonpote.com/mayotte-a-qu...
Analyse de @magalireghezza.bsky.social sur la situation à Mayotte
bonpote.com/mayotte-a-qu...
Mayotte, à qui la faute?
Alors que l’on ne connaît toujours pas le nombre de décès consécutifs au passage du Cyclone Chido, qui a ravagé Mayotte
bonpote.com
December 23, 2024 at 7:58 AM
"Chaque désastre est devenu une opportunité pour faire triompher ses valeurs, son idéologie et ses convictions, quitte à se livrer parfois à une instrumentalisation écœurante."
Analyse de @magalireghezza.bsky.social sur la situation à Mayotte
bonpote.com/mayotte-a-qu...
Analyse de @magalireghezza.bsky.social sur la situation à Mayotte
bonpote.com/mayotte-a-qu...
Day 20: Lorenzo 2019
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📆 Ex-hurricanes advent calendar day 20/24: Lorenzo 2019. 🌀
Lorenzo was a category 5 major hurricane over the open Atlantic Ocean, that reached Ireland after having substantially weakened.
Lorenzo was a category 5 major hurricane over the open Atlantic Ocean, that reached Ireland after having substantially weakened.
December 20, 2024 at 9:44 AM
Day 20: Lorenzo 2019
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On Oct. 4th, the storm reached Ireland while Met Eireann had issued an orange warning for six counties and yellow for the rest of the country. Strong gusts damaged infrastructure and cut electricity. Some flooding was reported. In the UK, one person was killed after being struck by a falling tree.
December 20, 2024 at 9:44 AM
On Oct. 4th, the storm reached Ireland while Met Eireann had issued an orange warning for six counties and yellow for the rest of the country. Strong gusts damaged infrastructure and cut electricity. Some flooding was reported. In the UK, one person was killed after being struck by a falling tree.
Although the storm was very far from the american coasts, 8 persons drowned after being caught in rip currents, or swept away by strong waves.
December 20, 2024 at 9:44 AM
Although the storm was very far from the american coasts, 8 persons drowned after being caught in rip currents, or swept away by strong waves.
On Sept 26th, a ship sank with 14 crew members on board. Only three of them could be rescued.
December 20, 2024 at 9:44 AM
On Sept 26th, a ship sank with 14 crew members on board. Only three of them could be rescued.
After an eyewall replacement cycle, it re-intensified to reach cat. 5 on Sept. 29th, becoming the easternmost cat. 5 Atlantic hurricane. At this stage, it was moving poleward, and starting recurvating towards Europe.
December 20, 2024 at 9:44 AM
After an eyewall replacement cycle, it re-intensified to reach cat. 5 on Sept. 29th, becoming the easternmost cat. 5 Atlantic hurricane. At this stage, it was moving poleward, and starting recurvating towards Europe.
Back to tropical wave hurricanes, Lorenzo formed from an African Easterly wave right off the coast on Sept . 22nd. Evolving in very favourable conditions, the system quickly organised and intensified until it reached first time category 4 on Sept. 27th.
December 20, 2024 at 9:44 AM
Back to tropical wave hurricanes, Lorenzo formed from an African Easterly wave right off the coast on Sept . 22nd. Evolving in very favourable conditions, the system quickly organised and intensified until it reached first time category 4 on Sept. 27th.
📆 Ex-hurricanes advent calendar day 20/24: Lorenzo 2019. 🌀
Lorenzo was a category 5 major hurricane over the open Atlantic Ocean, that reached Ireland after having substantially weakened.
Lorenzo was a category 5 major hurricane over the open Atlantic Ocean, that reached Ireland after having substantially weakened.
December 20, 2024 at 9:44 AM
📆 Ex-hurricanes advent calendar day 20/24: Lorenzo 2019. 🌀
Lorenzo was a category 5 major hurricane over the open Atlantic Ocean, that reached Ireland after having substantially weakened.
Lorenzo was a category 5 major hurricane over the open Atlantic Ocean, that reached Ireland after having substantially weakened.
Day 19: Leslie 2018
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📆 Ex-hurricanes advent calendar day 19/24: Leslie 2018. 🌀
Leslie was a rather unusual subtropical storm that nearly hit Portugal with tropical characteristics. It made 2 direct and 15 indirect victims.
Leslie was a rather unusual subtropical storm that nearly hit Portugal with tropical characteristics. It made 2 direct and 15 indirect victims.
December 19, 2024 at 11:34 AM
Day 19: Leslie 2018
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In France, Leslie participated in a circulation that caused extremely severe flooding: 295mm of precipitation accumulating over only 12h made the river Aude rise by more than 7m. 15 persons died as a consquence of the floods.
December 19, 2024 at 11:33 AM
In France, Leslie participated in a circulation that caused extremely severe flooding: 295mm of precipitation accumulating over only 12h made the river Aude rise by more than 7m. 15 persons died as a consquence of the floods.
In Portugal, the storm brought gusts up to 190km/h, likely associated with a sting jet. It was the worst storm Portugal had experienced since 1842. Leslie made 2 casualties and extensive infrastructural damage.
December 19, 2024 at 11:33 AM
In Portugal, the storm brought gusts up to 190km/h, likely associated with a sting jet. It was the worst storm Portugal had experienced since 1842. Leslie made 2 casualties and extensive infrastructural damage.
Leslie reached its maximum intensity on Oct. 12th. about 36h, it completed transition, very close to the Portugese coast, and only a few hours before making landfall.
December 19, 2024 at 11:33 AM
Leslie reached its maximum intensity on Oct. 12th. about 36h, it completed transition, very close to the Portugese coast, and only a few hours before making landfall.
Leslie, like Ophelia (2017) was a subtropical storm that underwent tropical transition. It had a very erratic path and went through two cycles of intensification, during which it reached cat. 1. After completing two loops, the cyclone went straight to the Iberian peninsula.
December 19, 2024 at 11:33 AM
Leslie, like Ophelia (2017) was a subtropical storm that underwent tropical transition. It had a very erratic path and went through two cycles of intensification, during which it reached cat. 1. After completing two loops, the cyclone went straight to the Iberian peninsula.
📆 Ex-hurricanes advent calendar day 19/24: Leslie 2018. 🌀
Leslie was a rather unusual subtropical storm that nearly hit Portugal with tropical characteristics. It made 2 direct and 15 indirect victims.
Leslie was a rather unusual subtropical storm that nearly hit Portugal with tropical characteristics. It made 2 direct and 15 indirect victims.
December 19, 2024 at 11:33 AM
📆 Ex-hurricanes advent calendar day 19/24: Leslie 2018. 🌀
Leslie was a rather unusual subtropical storm that nearly hit Portugal with tropical characteristics. It made 2 direct and 15 indirect victims.
Leslie was a rather unusual subtropical storm that nearly hit Portugal with tropical characteristics. It made 2 direct and 15 indirect victims.
Day 18: Ophelia 2017
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📆 Ex-hurricanes advent calendar day 18/24: Ophelia 2017. 🌀
Now for the celebrity of the show: Hurricane Ophelia. Ophelia hit Ireland and the UK with extremely powerful winds, causing 3 deaths. It became a benchmark storm for the field and is now subject of case studies.
Now for the celebrity of the show: Hurricane Ophelia. Ophelia hit Ireland and the UK with extremely powerful winds, causing 3 deaths. It became a benchmark storm for the field and is now subject of case studies.
December 18, 2024 at 10:22 AM
Day 18: Ophelia 2017
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In Ireland, two persons were killed by a tree falling on their car, and several other died in the aftermath of the storm while working on the repairs. The storm also impacted the UK and Eastern Europe, with no reported victims. Insurance claims amounted to nearly $90 million (2017 USD).
December 18, 2024 at 10:21 AM
In Ireland, two persons were killed by a tree falling on their car, and several other died in the aftermath of the storm while working on the repairs. The storm also impacted the UK and Eastern Europe, with no reported victims. Insurance claims amounted to nearly $90 million (2017 USD).
Met Eireann issued a red warning more than 48h in advance, anticipating a formidable storm already. On October 16th, the storm made landfall, bringing gusts up to 191km/h.
December 18, 2024 at 10:21 AM
Met Eireann issued a red warning more than 48h in advance, anticipating a formidable storm already. On October 16th, the storm made landfall, bringing gusts up to 191km/h.