East facing camera was pretty wild too..

From the @uwmad-aos.bsky.social rooftop camera facing north towards Lake Mendota. A timelapse of the tornado-warned cell from the UW-Madison campus on the afternoon of April 14, 2026.

Thanks @pth1.bsky.social for keeping these cameras up and running.

AOS undergraduate student Emma Trask at the American Meteorological Annual Meeting in Houston. Day of the Badger logo is in the top right corner.

Day of the Badger is here! Gifts support meaningful career development opportunities for students, including travel to professional conferences.

And this year, your impact will be doubled thanks to a generous match up to $10,000! Make a gift today: dayofthebadger.org/aos

AMS Responds to NSF Regarding the Future of National Center for Atmospheric Research (NCAR) YouTube video by American Meteorological Society

The National Center for Atmospheric Research (NCAR) is a cornerstone of U.S. weather science. AMS urges a transparent, community-driven review before restructuring such critical infrastructure.

Read our response to NSF's "Dear Colleague Letter": https://bit.ly/4bglx16

NOAA WINGS talk announcement

Learn more from our group and Elena Fernandez’s work on using machine learning to identify potential subseasonal forecasts of opportunity associated with stratospheric variability!

library.noaa.gov/seminars/upc...

The science crew of NASA NURTURE research flight 8

Thin clouds over snow in northern Quebec

The Pingualiut crater in the Ungava plateau within the Nunavik Parks of northern Quebec

The NASA GIII and B200 on the tarmac at the Goose Bay, Labrador airport

Northeast Canada in Feb, perfect spot for the NASA NURTURE field campaign. We’re flying NASA’s GIII plane to observe features in the atmosphere (synoptic scale tropopause polar vortices) that act as precursor to extreme weather, like cold air outbreaks & high impact storms. 📷 from Research Flight 8

Yes! Wouldn’t say no to some tips from a local.

En route to join the NASA NURTURE mission, a large-scale field campaign happening now. We’re coordinating research flights through atmospheric phenomena that contribute in the development of high-impact extreme weather, including major winter storms and cold air outbreaks.

espo.nasa.gov/nurture

Featuring AOS prof. @alopezlang.bsky.social!

Think it’s cold now? Just wait for the late-week Arctic blast poised to break records | CNN It’s cold now, but the next punch of Arctic air will take it to another level.

Thanks in part to a polar vortex disruption, December is likely to feature waves of unusually cold weather across the Central and Eastern US + other parts of the midlatitudes, experts say. Details on the next Arctic blast: www.cnn.com/2025/12/03/w...

It’s always great to chat about the stratosphere. The last major sudden stratospheric warming event to occur in November was in 1968! We might do it again this year. We’ve had a few minor events in since then (e.g., 1996, 2000, 2009, 2016) and they hint at an active wintery December!

2025 November 11 - Aurora - West View YouTube video by AOSSRooftopCameras

From the top of the Atmospheric, Oceanic, and Space Sciences building @uwmadison.bsky.social you can get a sense of how great the aurora was last night. This is the west view (not north!) youtu.be/V10uZNIuSCU
Thanks @uwmad-aos.bsky.social & @pth1.bsky.social for sharing the video!

Hurricane Melissa - 1 minute visible imagery from 18 UTC Oct 24, 2025 through 15 UTC Oct 29, 2025 YouTube video by UW-AOS UW Madison

Here's a loop of the 1-minute mesoscale visible imagery of Hurricane Melissa from roughly 18 UTC Oct 24 through 15 UTC Oct 29. These are not remapped, so the image jumps when the meso sector moves, usually around 18 UTC each day.

youtube.com/shorts/fIuAD...

Atmospheric and Oceanic Sciences - Fill The Hill Since 1948, the Department of Atmospheric and Oceanic Sciences (AOS) has been at the forefront of weather, climate, and ocean science, with nationally recognized graduate and undergraduate programs. O...

Fill the Hill and the flamingos are back! Be part of the feathered fun Oct 9–10, and support AOS at go.wisc.edu/5348a6. Gifts go to our discretionary fund and are used in impactful ways, helping students gain research experience and attend academic conferences.

Will you join our AOS flock?

Ángel F. Adames Corraliza Advancing understanding of the forces that drive tropical weather patterns.

We are thrilled and proud to share that AOS prof Ángel F. Adames Corraliza has been named a 2025 MacArthur Fellow!

Congrats, Ángel! The department is ecstatic for you. In addition to the MacArthur announcement linked below, check out the UW–Madison news release here: go.wisc.edu/r0ff84

A headshot photo of Professor Andrea Lopez Lang.

#HispanicHeritageMonth Spotlight: Andrea Lopez Lang @alopezlang.bsky.social is a professor at @uwmad-aos.bsky.social.

She served as AMS Councilor, chair of the Board on Enterprise Economic Development, and Associate Editor for Monthly Weather Review and Weather and Forecasting.

Photo of Bee Leung

We’re thrilled to welcome Bee Leung to our faculty! A cloud physicist and mesoscale meteorologist by training, her research looks at the physical processes driving land-aerosol-cloud interactions. Learn more about Bee in our Q&A: www.aos.wisc.edu/news/q-a_wel...

Congrats!! What great news!

Welcome WPO Innovation for Next Generation Scientists (WINGS) Fellowship 2025–2027 Class - NOAA Weather Program Office The program enables Fellows to gain insights into their fields of study, supports their integration into the workforce, and offers an opportunity to contribute to forecast model development.

Congratulation Elena!

She’s doing awesome work to assess sources of subseasonal prediction skill in our research group!

wpo.noaa.gov/wpo-ucar-cpa...

Confirmed severe hail for Fitchburg!

Atmospheric, Oceanic, and Space Sciences (AOSS) building

Join our team! We're seeking lecturers to teach AOS 100: Weather and Climate, and AOS 102: Climate and Climate Change during the Fall 2025 semester.

More information and application details can be found in the job postings.

AOS 100: go.wisc.edu/13us81

AOS 102: go.wisc.edu/g48zzv

Members of NOAA’s Scientific Advisory Board will provide update on our ability/inability to meet the requirements and laws of the Weather Act.

We will discuss the outcomes from the AMS Weather Enterprise Study, highlighting how cuts at federal agencies impact the entire enterprise’s ability to serve the nation and sustain economic prosperity.

Sessions cover the role of weather, water, and climate in energy security, and resiliency for transportation. We will advance conversations about AI and ethics as well as open data vs. data for profit in the weather, water, and climate enterprise.

2025 Joint AMS Washington Forum and Summer Community Meeting The AMS is a global community committed to advancing weather, water, and climate science and service.

📢 The 2025 @ametsoc.org Washington Forum & Summer Community Meeting on weather, water, & climate enterprise policy & community is ~2 weeks away📢

Keynotes: Marcia McNutt (@nasonline.org President), Craig McLean (Former NOAA Asst. Administrator) & a Congressional Rep.

www.ametsoc.org/ams/meetings...

One of the motivations for NOAA’s (a Department of Commerce agency) creation of this list was to quantify the economic importance of weather and climate information for the US. It is widely used to support further investments in weather and climate operations and science at the federal level. 🧐

Beyond the weather forecast: 5 ways UW satellite technology helps save lives The University of Wisconsin–Madison may be the birthplace of satellite meteorology, but scientists on campus have never stopped developing new ways for space-based instruments to protect and improve t

UW–Madison is the birthplace of satellite meteorology, and that legacy of innovative research continues today, helping keep people and communities safe.

news.wisc.edu/beyond-the-w...

2nd Call: @justinminder.bsky.social and I are seeking a postdoc to perform research on the characteristics and predictability of rainfall events over the Catskill mountains that impact the NYC water supply. Application deadline is this Friday 5/9. www.atmos.albany.edu/facstaff/tan...

How cuts impacting a federal climate report could affect Wisconsin’s disaster preparedness “Thermometers don’t care who’s in office,” said Dan Vimont, a professor of Atmospheric and Oceanic Sciences at the University of Wisconsin-Madison. “By undercutting our ability to monitor and assess t...

AOS Professor Dan Vimont spoke with Wisconsin Public Radio about the repercussions of cuts impacting the National Climate Assessment.

The statement includes key actions you can take now. The consequences of these haphazard actions would be devastating!