And the incidence of pyroCb's appears to be increasing. This is possibly an observational artifact but the strength of the inversion may also be lessening. Shear could be part of the decreased stability in trop-strat transition. Mike Fromm's pyroCb site is very active in observing fires.
October 26, 2025 at 6:41 PM
And the incidence of pyroCb's appears to be increasing. This is possibly an observational artifact but the strength of the inversion may also be lessening. Shear could be part of the decreased stability in trop-strat transition. Mike Fromm's pyroCb site is very active in observing fires.
🔥 🌳 Pyrocumulonimbus (pyroCb) clouds, wildfire-driven fire storms that inject smoke, ash, & moisture high into the sky and trigger hurricane-force winds below, generate lightning, ignite fires, and rain embers. They used to be rare. Not so anymore. buff.ly/5ONKAH7
From Forest to Fireweed
The ecological upheaval of Jasper National Park
buff.ly
October 18, 2025 at 3:26 PM
🔥 🌳 Pyrocumulonimbus (pyroCb) clouds, wildfire-driven fire storms that inject smoke, ash, & moisture high into the sky and trigger hurricane-force winds below, generate lightning, ignite fires, and rain embers. They used to be rare. Not so anymore. buff.ly/5ONKAH7
Procesos con formación de PyroCb que ya vimos en Portugal o Chile ahora ya son una normalidad en la península.
October 14, 2025 at 3:29 PM
Procesos con formación de PyroCb que ya vimos en Portugal o Chile ahora ya son una normalidad en la península.
Our new #E3SM wildfire simulation captures how extreme fires can create their own thunderstorm clouds (pyroCb) by reproducing the 2020 Creek Fire pyroCb — a first in climate modeling.
🔥☁️
agupubs.onlinelibrary.wiley.com/doi/full/10....
#Wildfire #ClimateModeling #PyroCb #EarthScience
🔥☁️
agupubs.onlinelibrary.wiley.com/doi/full/10....
#Wildfire #ClimateModeling #PyroCb #EarthScience
October 12, 2025 at 11:21 PM
Our new #E3SM wildfire simulation captures how extreme fires can create their own thunderstorm clouds (pyroCb) by reproducing the 2020 Creek Fire pyroCb — a first in climate modeling.
🔥☁️
agupubs.onlinelibrary.wiley.com/doi/full/10....
#Wildfire #ClimateModeling #PyroCb #EarthScience
🔥☁️
agupubs.onlinelibrary.wiley.com/doi/full/10....
#Wildfire #ClimateModeling #PyroCb #EarthScience
Wie Waldbrände Feuerstürme auslösen https://wp.me/p36Ae-1dUI Zu den extremsten Auswirkungen von Waldbränden zählen sogenannte Pyrocumulonimbus-Wolken, kurz PyroCb. Diese explosiven Gewitterfronten sorgen durch Blitze und Stürme ... #Waldbrände #PyrocumulonimbusWolken
Wie Waldbrände Feuerstürme auslösen
Feurige Gewitter: Heftige Waldbrände können verheerende Gewitterstürme erzeugen, die die Flammen weiter anfachen und Rauch bis in die Stratosphäre schleudern – ähnlich wie bei einem Vulkanausbruch. Forschende haben dieses extreme Wetterereignis nun erstmals in einem Klimamodell simuliert. Entscheidend für die Entstehung solcher Infernos ist demnach eine Kombination aus Hitze und Feuchtigkeit. Die Ergebnisse können dabei helfen, Gefahren besser vorherzusehen und bisherige Klimamodelle zu verfeinern.
brightsblog.wordpress.com
October 10, 2025 at 12:32 AM
Wie Waldbrände Feuerstürme auslösen https://wp.me/p36Ae-1dUI Zu den extremsten Auswirkungen von Waldbränden zählen sogenannte Pyrocumulonimbus-Wolken, kurz PyroCb. Diese explosiven Gewitterfronten sorgen durch Blitze und Stürme ... #Waldbrände #PyrocumulonimbusWolken
sería necesario que el PiroCu (o PyroCb) tuviera una gran altitud. Sin embargo la cantidad de humo que se aprecia no parece sugerir un incendio de esas proporciones.
Revisando las imágenes del Himawari compruebo que efectivamente es producto de una columna de humo
Revisando las imágenes del Himawari compruebo que efectivamente es producto de una columna de humo
October 6, 2025 at 9:14 PM
sería necesario que el PiroCu (o PyroCb) tuviera una gran altitud. Sin embargo la cantidad de humo que se aprecia no parece sugerir un incendio de esas proporciones.
Revisando las imágenes del Himawari compruebo que efectivamente es producto de una columna de humo
Revisando las imágenes del Himawari compruebo que efectivamente es producto de una columna de humo
we did new parameterizations in the model to represent this kind of convections. It is so amazing that this kind of convections (pyroCbs) has comparable horizontal and vertical scale. The implementations are to balance the local pyroCb formation and global representation of its dispersion.
September 30, 2025 at 10:56 PM
we did new parameterizations in the model to represent this kind of convections. It is so amazing that this kind of convections (pyroCbs) has comparable horizontal and vertical scale. The implementations are to balance the local pyroCb formation and global representation of its dispersion.
🔥 We just simulated wildfire-induced thunderstorms (pyroCbs) in a global Earth system model for the first time! doi.org/10.1029/2024...
#wildfires #pyroCb #ClimateAction #ClimateWeekNYC
#wildfires #pyroCb #ClimateAction #ClimateWeekNYC
September 30, 2025 at 8:34 PM
🔥 We just simulated wildfire-induced thunderstorms (pyroCbs) in a global Earth system model for the first time! doi.org/10.1029/2024...
#wildfires #pyroCb #ClimateAction #ClimateWeekNYC
#wildfires #pyroCb #ClimateAction #ClimateWeekNYC
We found that 55% of pyroCb events injected smoke within 1km of the tropopause or higher. 2023 was also a record-breaking year for pyroCb activity led by Canada with 142 events. Cumulative annual smoke mass injected by pyroCb can also rival mass injection by volcanoes or large pyroCb events
September 25, 2025 at 6:41 PM
We found that 55% of pyroCb events injected smoke within 1km of the tropopause or higher. 2023 was also a record-breaking year for pyroCb activity led by Canada with 142 events. Cumulative annual smoke mass injected by pyroCb can also rival mass injection by volcanoes or large pyroCb events
We analyzed pyroCb activity and the amount of smoke aerosol mass injected into the upper troposphere/lower stratosphere on a yearly, regional, monthly and hourly basis. The inventory file is also available online as Supplementary File 1.
September 25, 2025 at 6:34 PM
We analyzed pyroCb activity and the amount of smoke aerosol mass injected into the upper troposphere/lower stratosphere on a yearly, regional, monthly and hourly basis. The inventory file is also available online as Supplementary File 1.
Excited to share a new publication led by @drdavepeterson.bsky.social with contributions by Mike Fromm, René Servranckx and others, that analyzes the inventory of all known, worldwide, observed pyroCb events from 2013-2023! www.nature.com/articles/s41...
Worldwide inventory reveals the frequency and variability of pyrocumulonimbus and stratospheric smoke plumes during 2013–2023 - npj Climate and Atmospheric Science
npj Climate and Atmospheric Science - Worldwide inventory reveals the frequency and variability of pyrocumulonimbus and stratospheric smoke plumes during 2013–2023
www.nature.com
September 25, 2025 at 6:34 PM
Excited to share a new publication led by @drdavepeterson.bsky.social with contributions by Mike Fromm, René Servranckx and others, that analyzes the inventory of all known, worldwide, observed pyroCb events from 2013-2023! www.nature.com/articles/s41...
#GarnetFire in Sierra Nevada is extremely active today--perhaps most active it has been so far, w/large & episodically tall (~30k ft) pyroCb plume. Now over 40k acres & burning in heavy forest, it'll likely burn until sustained rain/snow arrives (none on horizon). #CAfire #CAwx
September 7, 2025 at 10:45 PM
#GarnetFire in Sierra Nevada is extremely active today--perhaps most active it has been so far, w/large & episodically tall (~30k ft) pyroCb plume. Now over 40k acres & burning in heavy forest, it'll likely burn until sustained rain/snow arrives (none on horizon). #CAfire #CAwx
ago it was almost unheard of to have a PyroCB in Southern California, but now it's becoming a staple of what we experience here. We used to teach it as a NorCal or other area phenomena, to know about in case you went on a strike team elsewhere, but now we show Ted and Arnie and the Station Fire...
September 4, 2025 at 7:20 PM
ago it was almost unheard of to have a PyroCB in Southern California, but now it's becoming a staple of what we experience here. We used to teach it as a NorCal or other area phenomena, to know about in case you went on a strike team elsewhere, but now we show Ted and Arnie and the Station Fire...
Así se veía el estado de Washington🇺🇸 desde el GOES-19 ayer a última hora de la tarde. Totalmente cubierto por el humo de decenas de incendios forestales. Destaca el inmenso pirocumulonimbus #PyroCb del #WildcatFire que podría perfectamente haber alcanzado los 13K metros de altitud:
September 4, 2025 at 1:45 PM
Así se veía el estado de Washington🇺🇸 desde el GOES-19 ayer a última hora de la tarde. Totalmente cubierto por el humo de decenas de incendios forestales. Destaca el inmenso pirocumulonimbus #PyroCb del #WildcatFire que podría perfectamente haber alcanzado los 13K metros de altitud:
Extreme fire behavior on the #WildcatFire this afternoon. PyroCb for several hours now, cloud tops up to 37,000 feet on radar #wawx #wawildfire
September 3, 2025 at 10:01 PM
Extreme fire behavior on the #WildcatFire this afternoon. PyroCb for several hours now, cloud tops up to 37,000 feet on radar #wawx #wawildfire
September 3, 2025 at 9:16 PM
#GarnetFire making another big/high-intensity run today (could double in size by tomorrow) characterized by multiple big pulses of pyrocumulonimbus (pyroCb, or "fire thunderstorm") activity as it "fills in the gaps" between recent fire footprints in/near Sierra NF. #CAwx #CAfire
August 27, 2025 at 11:08 PM
#GarnetFire making another big/high-intensity run today (could double in size by tomorrow) characterized by multiple big pulses of pyrocumulonimbus (pyroCb, or "fire thunderstorm") activity as it "fills in the gaps" between recent fire footprints in/near Sierra NF. #CAwx #CAfire
Pyrocb (fire generated thunderstorm) on the #GarnetFire on the GOES-West geocolor loop below. Expect rapid growth.
August 27, 2025 at 11:02 PM
Pyrocb (fire generated thunderstorm) on the #GarnetFire on the GOES-West geocolor loop below. Expect rapid growth.
It must have gone on a massive run to produce a pyroCb like this. Thanks for sharing the geocolor!
August 22, 2025 at 10:19 PM
It must have gone on a massive run to produce a pyroCb like this. Thanks for sharing the geocolor!
Very impressive #pyroCb/#pyrocumulonimbus plume from the Dollar Lake Fire this afternoon in Wyoming! It's currently stretching nearly the entire length of the state with activity still ongoing near the fire. #WYwx
August 22, 2025 at 9:38 PM
Very impressive #pyroCb/#pyrocumulonimbus plume from the Dollar Lake Fire this afternoon in Wyoming! It's currently stretching nearly the entire length of the state with activity still ongoing near the fire. #WYwx
In Spain, several pyroCb events have triggered the largest wildfires ever recorded in the country. We talk about it in the media ⬇️
www.eldiario.es/sociedad/ver...
www.eldiario.es/sociedad/ver...
Verano catastrófico: 2025 es ya el peor año de incendios del siglo XXI y registra los fuegos más voraces de la historia
Los datos provisionales indican que los fuegos de Zamora-León y Ourense son los mayores del registro y revelan un hecho crucial: los 52 grandes incendios han quemado de media 7.000 hectáreas, 3.000 má...
www.eldiario.es
August 19, 2025 at 10:04 PM
In Spain, several pyroCb events have triggered the largest wildfires ever recorded in the country. We talk about it in the media ⬇️
www.eldiario.es/sociedad/ver...
www.eldiario.es/sociedad/ver...
Today's environment had the ingredients for deep pyroCb formation from the get-go. The final factor (clearing cloud cover) arrived late afternoon, and boom.
Needless to say, significant expansion to evac zones southward along CR 5/Hwy 13 corridors for the Lee Fire today. #COwx #LeeFire
Needless to say, significant expansion to evac zones southward along CR 5/Hwy 13 corridors for the Lee Fire today. #COwx #LeeFire
August 9, 2025 at 4:26 AM
Wát een foto! Bosbranden in Portugal hebben gisteren deze enorme 'buienwolk' geproduceerd. Dit verschijnsel veroorzaakt door een lokale warmtebron, wordt ook wel een Pyrocumulonimbus (PyroCB) genoemd en kan in sommige gevallen ook bliksem geven.
Bron foto: Bombera51
Bron foto: Bombera51
August 3, 2025 at 5:11 PM
Wát een foto! Bosbranden in Portugal hebben gisteren deze enorme 'buienwolk' geproduceerd. Dit verschijnsel veroorzaakt door een lokale warmtebron, wordt ook wel een Pyrocumulonimbus (PyroCB) genoemd en kan in sommige gevallen ook bliksem geven.
Bron foto: Bombera51
Bron foto: Bombera51
Los PyroCB solo se forman en volcanes e incendios así😖
August 2, 2025 at 6:34 PM
Los PyroCB solo se forman en volcanes e incendios así😖
LO ES!!!! ES UN PYROCB!!!! COMO EN MONCHIQUE Y PEDROGRAO 2017
August 2, 2025 at 6:17 PM
LO ES!!!! ES UN PYROCB!!!! COMO EN MONCHIQUE Y PEDROGRAO 2017