INSTAAR 🏳️🌈
@instaar.bsky.social
Institute of Arctic & Alpine Research - Earth & environmental science at CU Boulder. Research & education on the past, present, & future of Earth systems in service of a just & thriving world https://www.colorado.edu/instaar/
Pinned
INSTAAR 🏳️🌈
@instaar.bsky.social
· Apr 10
Hi! 👋 We are scientists studying Earth & environmental systems at CU Boulder. Our name = cold/high places, but these days we work from tropics to poles, incl. the world ocean. Follow us for
🧊 Cold regions
⌛ Past climate
🏔️ Earth surface processes
💨 Atmospheric gases
🌱 Ecological change
& lots more!
🧊 Cold regions
⌛ Past climate
🏔️ Earth surface processes
💨 Atmospheric gases
🌱 Ecological change
& lots more!
Katie Suding's former student Isabel De Silva is featured in this CPR piece on moose in Colorado
www.cpr.org/2025/12/08/c...
www.cpr.org/2025/12/08/c...
Have Colorado’s moose restoration efforts been too successful?
Around 3,500 moose now wander Colorado. The hungry herbivores are also threatening a once-wetland-rich valley in Rocky Mountain National Park.
www.cpr.org
December 22, 2025 at 7:14 PM
Katie Suding's former student Isabel De Silva is featured in this CPR piece on moose in Colorado
www.cpr.org/2025/12/08/c...
www.cpr.org/2025/12/08/c...
🔥 INSTAARites in Boulder are hunkered down today for “extremely critical” fire weather conditions. Fortunately, no ignitions so far. Wish us luck!
🌬️ Peak wind gust 104 mph (NCAR Mesa Lab)
🌡️ Air temp ~65F
🌵 Humidity only ~9%
#COWX
🌬️ Peak wind gust 104 mph (NCAR Mesa Lab)
🌡️ Air temp ~65F
🌵 Humidity only ~9%
#COWX
December 19, 2025 at 8:33 PM
🔥 INSTAARites in Boulder are hunkered down today for “extremely critical” fire weather conditions. Fortunately, no ignitions so far. Wish us luck!
🌬️ Peak wind gust 104 mph (NCAR Mesa Lab)
🌡️ Air temp ~65F
🌵 Humidity only ~9%
#COWX
🌬️ Peak wind gust 104 mph (NCAR Mesa Lab)
🌡️ Air temp ~65F
🌵 Humidity only ~9%
#COWX
Reposted by INSTAAR 🏳️🌈
Today, the 2025 #ArcticReportCard was released, marking 20 years of tracking rapid Arctic warming and change.
Find the full 2025 Arctic Report Card, with images, facts and stats at:
arctic.noaa.gov/report-card/...
#AGU25
noaa.gov via NOAA Research
Find the full 2025 Arctic Report Card, with images, facts and stats at:
arctic.noaa.gov/report-card/...
#AGU25
noaa.gov via NOAA Research
Report Card 2025 - NOAA Arctic
Arctic Report Card: Update for 2025 Twenty years of tracking rapid Arctic warming and change Archive of Previous Arctic Report Cards Arctic Report Card 2025 2025 Headlines and Overview Vital Signs Oth...
arctic.noaa.gov
December 16, 2025 at 5:22 PM
Today, the 2025 #ArcticReportCard was released, marking 20 years of tracking rapid Arctic warming and change.
Find the full 2025 Arctic Report Card, with images, facts and stats at:
arctic.noaa.gov/report-card/...
#AGU25
noaa.gov via NOAA Research
Find the full 2025 Arctic Report Card, with images, facts and stats at:
arctic.noaa.gov/report-card/...
#AGU25
noaa.gov via NOAA Research
🧑🏽🔬 This week, 100s of @colorado.edu scientists -incl many INSTAARs- are participating in the #AGU25 Earth & space science conference. INSTAARs are helping w the CU exhibit booth too. Thanks y'all!
See schedule of remaining talks & posters of CU participants www.colorado.edu/news/formedi...
See schedule of remaining talks & posters of CU participants www.colorado.edu/news/formedi...
December 17, 2025 at 8:04 PM
🧑🏽🔬 This week, 100s of @colorado.edu scientists -incl many INSTAARs- are participating in the #AGU25 Earth & space science conference. INSTAARs are helping w the CU exhibit booth too. Thanks y'all!
See schedule of remaining talks & posters of CU participants www.colorado.edu/news/formedi...
See schedule of remaining talks & posters of CU participants www.colorado.edu/news/formedi...
🌊 The Arctic Rivers Project is weaving Indigenous Knowledge with empirical analysis to plan for the 21st century.
Last week, Eos writer Cassidy Beach featured INSTAAR fellow Keith Musselman in a piece on the innovative research effort.
Last week, Eos writer Cassidy Beach featured INSTAAR fellow Keith Musselman in a piece on the innovative research effort.
Changing Winters Leave Indigenous Alaskans on Thin Ice - Eos
Researchers are blending Indigenous Knowledges with climate models to describe shifts in snow and ice.
eos.org
December 17, 2025 at 7:19 PM
🌊 The Arctic Rivers Project is weaving Indigenous Knowledge with empirical analysis to plan for the 21st century.
Last week, Eos writer Cassidy Beach featured INSTAAR fellow Keith Musselman in a piece on the innovative research effort.
Last week, Eos writer Cassidy Beach featured INSTAAR fellow Keith Musselman in a piece on the innovative research effort.
Reposted by INSTAAR 🏳️🌈
Attention @colorado.edu authors! Did you know that University Libraries can provide up to $2,000 to pay for publishing fees for full open access journals, including our own AAAR? Please read through the eligibility criteria carefully: libraries.colorado.edu/research/ope....
December 16, 2025 at 4:48 PM
Attention @colorado.edu authors! Did you know that University Libraries can provide up to $2,000 to pay for publishing fees for full open access journals, including our own AAAR? Please read through the eligibility criteria carefully: libraries.colorado.edu/research/ope....
Extract rare earth metals from contaminated Colorado streams?
Diane McKnight & Tom Marchitto are collaborators on a new project seeking to improve water quality while also increasing the domestic supply of raw materials for advanced technologies www.colorado.edu/instaar/2025...
Diane McKnight & Tom Marchitto are collaborators on a new project seeking to improve water quality while also increasing the domestic supply of raw materials for advanced technologies www.colorado.edu/instaar/2025...
Precious waterways: how contaminated mountain streams could power American-made technology
Diane McKnight and Tom Marchitto are collaborators on a new project looking for a way to extract rare earth metals from contaminated Colorado streams. The goal
www.colorado.edu
December 16, 2025 at 7:48 PM
Extract rare earth metals from contaminated Colorado streams?
Diane McKnight & Tom Marchitto are collaborators on a new project seeking to improve water quality while also increasing the domestic supply of raw materials for advanced technologies www.colorado.edu/instaar/2025...
Diane McKnight & Tom Marchitto are collaborators on a new project seeking to improve water quality while also increasing the domestic supply of raw materials for advanced technologies www.colorado.edu/instaar/2025...
🌎 Are you an early career researcher keen on Earth surface processes? Want to learn about numerical modeling & software development?
Apply by 24 January for the *free* CSDMS ESPIn immersive training experience Aug 3-7, 2026 in Boulder Colorado ⬇️
csdms.colorado.edu/wiki/ESPIn2026
Apply by 24 January for the *free* CSDMS ESPIn immersive training experience Aug 3-7, 2026 in Boulder Colorado ⬇️
csdms.colorado.edu/wiki/ESPIn2026
December 15, 2025 at 9:45 PM
🌎 Are you an early career researcher keen on Earth surface processes? Want to learn about numerical modeling & software development?
Apply by 24 January for the *free* CSDMS ESPIn immersive training experience Aug 3-7, 2026 in Boulder Colorado ⬇️
csdms.colorado.edu/wiki/ESPIn2026
Apply by 24 January for the *free* CSDMS ESPIn immersive training experience Aug 3-7, 2026 in Boulder Colorado ⬇️
csdms.colorado.edu/wiki/ESPIn2026
📻 KUNC did a story on Nancy Emery and her lab's work on how alpine plants adapt to environmental change.
The Niwot Ridge Long-Term Ecological Monitoring Project faces a 20% budget cut in 2026. Check out our website to support this project and others.
The Niwot Ridge Long-Term Ecological Monitoring Project faces a 20% budget cut in 2026. Check out our website to support this project and others.
How an experiment in the mountains could reveal the future of alpine plants
As temperatures increase and snowpack declines, many alpine plants are at risk of extinction. Though adapted to harsh environments, the rate of change occurring in the mountains is concerning for…
www.kunc.org
December 13, 2025 at 12:00 AM
📻 KUNC did a story on Nancy Emery and her lab's work on how alpine plants adapt to environmental change.
The Niwot Ridge Long-Term Ecological Monitoring Project faces a 20% budget cut in 2026. Check out our website to support this project and others.
The Niwot Ridge Long-Term Ecological Monitoring Project faces a 20% budget cut in 2026. Check out our website to support this project and others.
🧊 The team at the Stable Isotope Lab recently finished processing a mile-long ice core from Greenland.
Though the ice core was extracted more than three decades ago, new methods may reveal new insights into Eath's past, present and future climate.
Though the ice core was extracted more than three decades ago, new methods may reveal new insights into Eath's past, present and future climate.
What can a mile-long stick of ice, stored away for 33 years, tell us about Earth’s climate?
Researchers at the stable isotope lab just finished resampling more than a mile of ice from Greenland. Further analysis will probe unanswered questions about
www.colorado.edu
December 12, 2025 at 12:00 AM
🧊 The team at the Stable Isotope Lab recently finished processing a mile-long ice core from Greenland.
Though the ice core was extracted more than three decades ago, new methods may reveal new insights into Eath's past, present and future climate.
Though the ice core was extracted more than three decades ago, new methods may reveal new insights into Eath's past, present and future climate.
📢 New paper on causes for the global methane rise after 2006
Led by Ben Riddell-Young (CIRES/NOAA), INSTAAR co-authors include Sylvia Michel and Pieter Tans. Congrats to the whole team! 👏🏽
Led by Ben Riddell-Young (CIRES/NOAA), INSTAAR co-authors include Sylvia Michel and Pieter Tans. Congrats to the whole team! 👏🏽
Excited to share our new PNAS paper!
We find that recent methane growth was driven by agriculture/waste and wetland emissions, while fossil fuel emissions have remained stable despite growth in production, highlighting recent progress and further mitigation potential.
www.pnas.org/doi/abs/10.1...
We find that recent methane growth was driven by agriculture/waste and wetland emissions, while fossil fuel emissions have remained stable despite growth in production, highlighting recent progress and further mitigation potential.
www.pnas.org/doi/abs/10.1...
December 10, 2025 at 11:34 PM
📢 New paper on causes for the global methane rise after 2006
Led by Ben Riddell-Young (CIRES/NOAA), INSTAAR co-authors include Sylvia Michel and Pieter Tans. Congrats to the whole team! 👏🏽
Led by Ben Riddell-Young (CIRES/NOAA), INSTAAR co-authors include Sylvia Michel and Pieter Tans. Congrats to the whole team! 👏🏽
Reposted by INSTAAR 🏳️🌈
Pikas are icons of Colorado’s high country, but new @instaar.bsky.social research shows their future may be at risk.
Fewer young pikas are surviving in some Rocky Mountain sites, a trend scientists say could signal the impacts of a warming climate. 🏔️
Read more ↓
https://bit.ly/4ineM0v
Fewer young pikas are surviving in some Rocky Mountain sites, a trend scientists say could signal the impacts of a warming climate. 🏔️
Read more ↓
https://bit.ly/4ineM0v
New pika research finds troubling signs for the iconic Rocky Mountain animal
Pikas, which often greet hikers in the Rocky Mountains with loud squeaks, have long been a favorite of visitors to Colorado. A new study suggests that warming
bit.ly
December 9, 2025 at 5:49 PM
Pikas are icons of Colorado’s high country, but new @instaar.bsky.social research shows their future may be at risk.
Fewer young pikas are surviving in some Rocky Mountain sites, a trend scientists say could signal the impacts of a warming climate. 🏔️
Read more ↓
https://bit.ly/4ineM0v
Fewer young pikas are surviving in some Rocky Mountain sites, a trend scientists say could signal the impacts of a warming climate. 🏔️
Read more ↓
https://bit.ly/4ineM0v
📢 3 INSTAAR talks today
8 Dec, 12-1 pm
SEEC S228 & Zoom
🌿 Semi-arid rangeland conservation
Hunter Geist-Sanchez
⛰️ Rock glacier evolution
Juliana Ruef
🦠 Upwelling community collapse
Harry Allbrook
See full titles & abstracts: calendar.colorado.edu/event/instaa...
8 Dec, 12-1 pm
SEEC S228 & Zoom
🌿 Semi-arid rangeland conservation
Hunter Geist-Sanchez
⛰️ Rock glacier evolution
Juliana Ruef
🦠 Upwelling community collapse
Harry Allbrook
See full titles & abstracts: calendar.colorado.edu/event/instaa...
December 8, 2025 at 1:09 PM
📢 3 INSTAAR talks today
8 Dec, 12-1 pm
SEEC S228 & Zoom
🌿 Semi-arid rangeland conservation
Hunter Geist-Sanchez
⛰️ Rock glacier evolution
Juliana Ruef
🦠 Upwelling community collapse
Harry Allbrook
See full titles & abstracts: calendar.colorado.edu/event/instaa...
8 Dec, 12-1 pm
SEEC S228 & Zoom
🌿 Semi-arid rangeland conservation
Hunter Geist-Sanchez
⛰️ Rock glacier evolution
Juliana Ruef
🦠 Upwelling community collapse
Harry Allbrook
See full titles & abstracts: calendar.colorado.edu/event/instaa...
Reposted by INSTAAR 🏳️🌈
On a recent blustery day, NWT LTER researchers took Isabella Escobedo, a reporter from KUNC, up Niwot Ridge to cover our ongoing alpine warming experiment. Check out Isabella's story that came out yesterday!
www.kunc.org/kunc/2025-12...
www.kunc.org/kunc/2025-12...
How an experiment in the mountains could reveal the future of alpine plants
As temperatures increase and snowpack declines, many alpine plants are at risk of extinction. Though adapted to harsh environments, the rate of change occurring in the mountains is concerning for rese...
www.kunc.org
December 5, 2025 at 4:26 PM
On a recent blustery day, NWT LTER researchers took Isabella Escobedo, a reporter from KUNC, up Niwot Ridge to cover our ongoing alpine warming experiment. Check out Isabella's story that came out yesterday!
www.kunc.org/kunc/2025-12...
www.kunc.org/kunc/2025-12...
"Okay, but is bird monogamy just PR?" 🐦🦆🐣 🦉🦜🦩
Listen/watch the first episode of the Okay, But… Birds podcast, hosted by @drscottataylor.bsky.social (INSTAAR & EBIO, CU Boulder) and featuring Carrie Branch (Western University, Canada) www.okaybutbirds.com
Listen/watch the first episode of the Okay, But… Birds podcast, hosted by @drscottataylor.bsky.social (INSTAAR & EBIO, CU Boulder) and featuring Carrie Branch (Western University, Canada) www.okaybutbirds.com
Okay, But... Birds
Discover the fascinating world of birds with Okay, But... Birds. Explore science-driven stories and episodes on avian life, hosted by evolutionary biologist Dr. Scott Taylor.
www.okaybutbirds.com
December 4, 2025 at 5:42 PM
"Okay, but is bird monogamy just PR?" 🐦🦆🐣 🦉🦜🦩
Listen/watch the first episode of the Okay, But… Birds podcast, hosted by @drscottataylor.bsky.social (INSTAAR & EBIO, CU Boulder) and featuring Carrie Branch (Western University, Canada) www.okaybutbirds.com
Listen/watch the first episode of the Okay, But… Birds podcast, hosted by @drscottataylor.bsky.social (INSTAAR & EBIO, CU Boulder) and featuring Carrie Branch (Western University, Canada) www.okaybutbirds.com
Reposted by INSTAAR 🏳️🌈
onlinelibrary.wiley.com/doi/10.1002/...
Josie Arcuri's paper on feedbacks between river ice and bank erosion in the Canning delta (in Alaska) is out today! Woohoo congrats Josie!
@instaar.bsky.social @csdms.bsky.social @marisaexplores.bsky.social
Josie Arcuri's paper on feedbacks between river ice and bank erosion in the Canning delta (in Alaska) is out today! Woohoo congrats Josie!
@instaar.bsky.social @csdms.bsky.social @marisaexplores.bsky.social
River ice controls permafrost bank erosion across an Arctic delta
Massive fields of river ice occupy rivers in the Arctic Coastal Plain, where floodplains are frozen and river banks can rapidly thaw and collapse. We show that river ice accumulations can exacerbate ...
onlinelibrary.wiley.com
December 4, 2025 at 4:30 PM
onlinelibrary.wiley.com/doi/10.1002/...
Josie Arcuri's paper on feedbacks between river ice and bank erosion in the Canning delta (in Alaska) is out today! Woohoo congrats Josie!
@instaar.bsky.social @csdms.bsky.social @marisaexplores.bsky.social
Josie Arcuri's paper on feedbacks between river ice and bank erosion in the Canning delta (in Alaska) is out today! Woohoo congrats Josie!
@instaar.bsky.social @csdms.bsky.social @marisaexplores.bsky.social
💰 🔬 The Mountain Research Station has received three years of funding for student research projects from the Maxwell/Hanrahan Foundation!
The scholarships created by the donation will go toward field investigations in alpine landscapes and ecosystems.
www.colorado.edu/instaar/2025...
The scholarships created by the donation will go toward field investigations in alpine landscapes and ecosystems.
www.colorado.edu/instaar/2025...
Brief: New funds for student research at the Mountain Research Station
Hymenoxys grandiflora, also known as old man of the mountain, blooms on Niwot Ridge above the Mountain Research Station. (Courtesy, Scott Taylor)
www.colorado.edu
December 4, 2025 at 1:00 AM
💰 🔬 The Mountain Research Station has received three years of funding for student research projects from the Maxwell/Hanrahan Foundation!
The scholarships created by the donation will go toward field investigations in alpine landscapes and ecosystems.
www.colorado.edu/instaar/2025...
The scholarships created by the donation will go toward field investigations in alpine landscapes and ecosystems.
www.colorado.edu/instaar/2025...
Reposted by INSTAAR 🏳️🌈
Snow has arrived on campus! ❄️ See how CU Boulder manages snow for safety and accessibility, and view the live CU Boulder snow camera.
Bookmark this resource for the winter months ↓
https://bit.ly/4oBd7G1
Bookmark this resource for the winter months ↓
https://bit.ly/4oBd7G1
December 3, 2025 at 10:36 PM
Snow has arrived on campus! ❄️ See how CU Boulder manages snow for safety and accessibility, and view the live CU Boulder snow camera.
Bookmark this resource for the winter months ↓
https://bit.ly/4oBd7G1
Bookmark this resource for the winter months ↓
https://bit.ly/4oBd7G1
Reposted by INSTAAR 🏳️🌈
📣New resource available from the NNA-CO! Check out our new mini-course - Arctic Scientists in the Classroom: Principles for Designing Community-Centered Educational Programs 🎓
ceee.colorado.edu/online-works...
ceee.colorado.edu/online-works...
December 2, 2025 at 4:16 PM
📣New resource available from the NNA-CO! Check out our new mini-course - Arctic Scientists in the Classroom: Principles for Designing Community-Centered Educational Programs 🎓
ceee.colorado.edu/online-works...
ceee.colorado.edu/online-works...
Reposted by INSTAAR 🏳️🌈
Are you a @colorado.edu undergrad or grad student interested in the eco-cultural restoration of bison in Colorado? Attend the Bison Mixer! Hear from the Colorado Buffalo Collective Team including Katie Suding and James Rattling Leaf on Monday, December 8, 4:30 pm - 6:00 pm in Ramaley Biology N240.
December 1, 2025 at 6:02 PM
Are you a @colorado.edu undergrad or grad student interested in the eco-cultural restoration of bison in Colorado? Attend the Bison Mixer! Hear from the Colorado Buffalo Collective Team including Katie Suding and James Rattling Leaf on Monday, December 8, 4:30 pm - 6:00 pm in Ramaley Biology N240.
A new study from Chris Ray & Jasmine Vidrio sounds the alarm for pikas in the Rocky Mountains. Their paper provides the first empirical evidence for a theory long held by wildlife biologists — that pikas are struggling to adapt to warming temperatures www.colorado.edu/today/2025/1...
New pika research finds troubling signs for the iconic Rocky Mountain animal
Pikas, which often greet hikers in the Rocky Mountains with loud squeaks, have long been a favorite of visitors to Colorado. A new study suggests that warming
www.colorado.edu
November 27, 2025 at 12:07 AM
A new study from Chris Ray & Jasmine Vidrio sounds the alarm for pikas in the Rocky Mountains. Their paper provides the first empirical evidence for a theory long held by wildlife biologists — that pikas are struggling to adapt to warming temperatures www.colorado.edu/today/2025/1...
Meet Will Wieder!
This week, the Niwot Ridge co-PI sat down with Anne Marie Panetta for a Q&A covering his personal history on the ridge and an upcoming project on microbes and alpine shrub encroachment.
This week, the Niwot Ridge co-PI sat down with Anne Marie Panetta for a Q&A covering his personal history on the ridge and an upcoming project on microbes and alpine shrub encroachment.
Q & A with Niwot Co-PI Will Wieder — Niwot Ridge LTER
If you join Niwot for one of our weekly all-hands meetings, you will likely run into Dr. Will Wieder. A friendly, engaged member of our research community, Dr. Wieder is a Co-PI of the Niwot Ridge…
nwt.lternet.edu
November 21, 2025 at 7:00 PM
Meet Will Wieder!
This week, the Niwot Ridge co-PI sat down with Anne Marie Panetta for a Q&A covering his personal history on the ridge and an upcoming project on microbes and alpine shrub encroachment.
This week, the Niwot Ridge co-PI sat down with Anne Marie Panetta for a Q&A covering his personal history on the ridge and an upcoming project on microbes and alpine shrub encroachment.
Reposted by INSTAAR 🏳️🌈
Every pika has a voice, and instaar.bsky.social researchers are learning to recognize it. 🐾
Through “acoustic fingerprinting,” they aim to identify individual pikas and track how these alpine icons adapt to climate change.
Through “acoustic fingerprinting,” they aim to identify individual pikas and track how these alpine icons adapt to climate change.
Researchers aim to identify pika calls through 'acoustic fingerprinting'
Chris Ray has studied pika populations in the West for nearly four decades. Today, she is collaborating with doctoral student Rachel Mae Billings on a project
bit.ly
November 21, 2025 at 4:13 PM
Every pika has a voice, and instaar.bsky.social researchers are learning to recognize it. 🐾
Through “acoustic fingerprinting,” they aim to identify individual pikas and track how these alpine icons adapt to climate change.
Through “acoustic fingerprinting,” they aim to identify individual pikas and track how these alpine icons adapt to climate change.
As the arctic warms, phytoplankton 🦠 are revising their seasonal schedule 🗓️ ... but other organisms didn't get the memo in time.
A new study from Courtney Payne and collaborators predicts disruptions in the Arctic Ocean's food web by the end of the century.
A new study from Courtney Payne and collaborators predicts disruptions in the Arctic Ocean's food web by the end of the century.
Scientists predict a sea change in Arctic ecosystems by the end of the century
A new study, led by INSTAAR’s Courtney Payne, predicts disrupted phytoplankton blooms in the year 2100, leading to knock-on effects throughout the Arctic ecosystem.
www.colorado.edu
November 20, 2025 at 3:01 PM
As the arctic warms, phytoplankton 🦠 are revising their seasonal schedule 🗓️ ... but other organisms didn't get the memo in time.
A new study from Courtney Payne and collaborators predicts disruptions in the Arctic Ocean's food web by the end of the century.
A new study from Courtney Payne and collaborators predicts disruptions in the Arctic Ocean's food web by the end of the century.
Reposted by INSTAAR 🏳️🌈
🏆NEW LATEST FIRST SNOWFALL RECORD SET IN BOULDER ☃️
November 19th & counting...
Prior record was November 17th (2016 & 2021). Based on official daily snowfall data back to 1948.
With the Thu/Fri storm likely to be only rain, our next snow chance won't be until ~Nov 26th! #COWX #Boulderwx
November 19th & counting...
Prior record was November 17th (2016 & 2021). Based on official daily snowfall data back to 1948.
With the Thu/Fri storm likely to be only rain, our next snow chance won't be until ~Nov 26th! #COWX #Boulderwx
November 19, 2025 at 6:29 PM
🏆NEW LATEST FIRST SNOWFALL RECORD SET IN BOULDER ☃️
November 19th & counting...
Prior record was November 17th (2016 & 2021). Based on official daily snowfall data back to 1948.
With the Thu/Fri storm likely to be only rain, our next snow chance won't be until ~Nov 26th! #COWX #Boulderwx
November 19th & counting...
Prior record was November 17th (2016 & 2021). Based on official daily snowfall data back to 1948.
With the Thu/Fri storm likely to be only rain, our next snow chance won't be until ~Nov 26th! #COWX #Boulderwx