Join us today for a Department Seminar at 2:30 CDT! Megan Schaaf, AOS graduate student, will defend her MS thesis and discuss "Global Precipitation Efficiency in Deep Convection from a Satellite Perspective." Livestream: www.youtube.com/watch?v=mNOp...

A huge thank you to all the AOS supporters who made last week’s Fill the Hill 🦩 the most fla-mazing one yet, for us and the university! We had a record-breaking campaign, and we’re so grateful to be part of a community that invests in AOS students and their success.

Today @ 3:30! Join us for an AOS colloquium w/ Paul Stoy, prof of biological systems engineering, UW–Madison, who will discuss "Toward Medium-Range Forecasts of Carbon and Water Cycling: Taking Inspiration from Atmospheric Science to Advance Ecosystem Science." Livestream: go.wisc.edu/uwaos-youtube

Please join us for Weather Watch at 12:15 PM CDT (1715 UTC) today, October 10, 2025, streaming online at go.wisc.edu/uwaos-wxwatch Remember that we are starting at 12:15 PM this semester because there is a class in the room right before Weather Watch. Hope to see you there!

Fill the Hill is off to a great start! Each gift makes a difference and provides travel support to professional conferences for students, such as when AOS graduate student Claire Mundi was able to attend the Women in the Sciences Leadership Workshop. Give today before 5 pm CDT! go.wisc.edu/5348a6

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?

WOO HOO!! Proud to share that TWO @uwmadison.bsky.social faculty were just announced as 2025 MacArthur Foundation “genius grant” recipients. HUGE congrats to Ángel F. Adames Corraliza & Sébastien Phillipe, doing amazing work on tropical storms & nuclear security, respectively.👏

Two extraordinary UW–Madison professors — nuclear security specialist Sébastien Philippe and atmospheric scientist Ángel F. Adames Corraliza — have been named 2025 MacArthur "genius grant" fellows by @macfound.org. Congratulations and On, Wisconsin!

Congratulations to Ángel F. Adames Corraliza, the Ned P. Smith Distinguished Chair of Climatology in @uwmad-aos.bsky.social for being awarded a 2025 MacArthur Foundation Fellowship--also known as "Genius Grants." Fellows receive an $800,000 stipend with no conditions. news.wisc.edu/two-uw-madis...

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

Join us today for a Department Seminar at 2:30 CDT! Carolyn Bean, AOS graduate student, will defend her MS thesis and discuss "A Qualitative Far-Infrared Characterization of Convective Cloud-Tops." Livestream: www.youtube.com/watch?v=8ZPP...

We’re going live today! ⏰ Join #ScienceOnThe7th with Tracey Holloway (@uwmad-aos.bsky.social) to learn how satellite remote sensing is helping us better understand and address air quality. 📅 Today, Oct 7 | 🕘 9 AM EDT / 1 PM GMT 🔗 tinyurl.com/4eyxmrmr

Happening tomorrow! Join UW–Madison's 2025 Climate Change Symposium as we explore climate solutions for building resilient communities with a keynote talk, panel discussion, and audience Q & A. Free, open to the public, and registration appreciated: ccr.nelson.wisc.edu/climate-chan...

The flamingos are coming! 🦩 Will you help us Fill the Hill Oct 9–10? Join in the feathered fun and make a gift starting at 5 pm CDT, Thurs, 10/9: uwflamingos.com/campaign/atm....

Please join us for Weather Watch at 12:15 PM CDT (1715 UTC) today, October 3, 2025, streaming online at go.wisc.edu/uwaos-wxwatch Remember that we are starting at 12:15 PM this semester because there is a class in the room right before Weather Watch. Hope to see you there!

We're delighted to share that AOS and Nelson Institute prof. Tracey Holloway has been elected as an AGU Fellow! This distinguished honor is fitting for someone who has worked for over 20 yrs to advance air quality research and policy. Congratulations, Tracey! www.aos.wisc.edu/news/tracey-...

Join us today for a Department Seminar at 2:30 CDT! Megan Caldwell, flood and water analyst, Guy Carpenter, will discuss "Private Sector Meteorology: An Introduction to Reinsurance and Catastrophe Modeling." Livestream: www.youtube.com/watch?v=zl-D...

Please join us for Weather Watch at 12:15 PM CDT (1715 UTC) today, September 26, 2025, streaming online at go.wisc.edu/uwaos-wxwatch Remember that we are starting at 12:15 PM this semester because there is a class in the room right before Weather Watch. Hope to see you there!

Join us today for a Department Seminar at 2:30 CDT! Cara Scalpone, AOS graduate student, will defend her MS thesis and discuss "Impacts of Temperature-Dependent Heating Demand on Wintertime Emissions" Livestream: www.youtube.com/watch?v=dt5M...

#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.

Please join us for Weather Watch at 12:15 PM CDT (1715 UTC) today, September 19, 2025, streaming online at go.wisc.edu/uwaos-wxwatch Remember that we are starting at 12:15 PM this semester because there is a class in the room right before Weather Watch. Hope to see you there!

Join us today for a Department Seminar at 2:30 CDT! Jack Zweifel, AOS graduate student, will defend his MS thesis and discuss "Investigating the Seasonality and Radiative Forcing of Anthropogenic Sulfate Aerosols Over the North Pacific Ocean." Livestream: www.youtube.com/watch?v=qMhM...

Please join us for Weather Watch at 12:15 PM CDT (1715 UTC) today, September 12, 2025, streaming online at go.wisc.edu/uwaos-wxwatch Remember that we are starting at 12:15 PM this semester because there is a class in the room right before Weather Watch. Hope to see you there!

AOS professor Till Wagner is part of a team of UW–Madison researchers aiming to deepen our understanding of how ocean waves wear away massive ice sheets—and how that activity can influence climate around the world. engineering.wisc.edu/news/wave-go...

Join us today for a Department Seminar at 2:30 CDT! Sofia Avila Nevarez, AOS graduate student, will defend her MS thesis and discuss "Moist Thermodynamic Processes Leading to the Onset of Moist Tropical Heat Waves." Livestream: go.wisc.edu/uwaos-youtube

The Wisconet manager was able to get a photo with @uwmad-aos.bsky.social alumni Mike Nelson and Dr. Louis Uccellini at the 50th Annual Meeting of @nwas.org #NWAS25

Join us today for our first colloquium of the semester with AOS professor Michael Morgan! After a few years away, Michael will (re)introduce himself to the AOS community and describe his career path, classes taught, research foci, and service activities. Livestream: www.youtube.com/watch?v=w9Br...

Please join us for the first Weather Watch of the semester at 12:15 PM CDT (1715 UTC) today streaming online at go.wisc.edu/uwaos-wxwatch - note that we are starting at 12:15 PM this semester because there is a class in the room right before Weather Watch. Hope to see you there!

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...

Anthony Bernal Ayala, PhD ’25, is part of NSF’s ICECHIP field campaign. Their work will produce the most extensive database of hailstones to date, linking the small-scale details contained within them to large-scale field observations, giving researchers new insights into the hailstone lifecycle.

Watch: 📺 🖥️ 💻 📱 @uwmad-aos.bsky.social Wisconsin State Climatology Office outreach specialist Amanda Schwabe considers how people experience the variability of daily and seasonal weather as climate change shifts broader patterns over time.

We’re pleased to announce Professors Ángel Adames Corraliza and Mayra Oyola-Merced as the newest Ned P. Smith Distinguished Chairs of Climatology and Meteorology, respectively. The support of these chairs has been transformational for the department, enabling new frontiers of research.

UW-Madison AOSS Rooftop Camera video from this past Saturday with two spectacular gust front / arc cloud passages, and lots of turbulence right behind them youtu.be/OfgKADhyET0

SSEC turns 60! We’re celebrating six decades of atmospheric and satellite meteorological research that supports the mission to protect property and save lives: ssec.wisc.edu/news/article...

Some good news to share: NASA's PREFIRE mission has been extended through September 2026 and is broadening its focus from Earth’s poles to the entire globe. AOS professor Tristan L'Ecuyer is the principal investigator. www.jpl.nasa.gov/news/nasas-p...

A new paper, led by AOS grad student Evan Meeker, shows the Pacific Decadal Oscillation (PDO) is predictable up to a year using the Seasonal to Multi Year Ensemble (SMYLE). Forecast skill drops most in late fall & spring, also tricky times for El Niño predictions. eos.org/editor-highl...

AOS professor Hannah Zanowski joined The Larry Meiller Show to talk about the role of oceans on Earth and other planets. Have a listen!

Join us today for a Department Seminar/MS Defense at noon CDT! Leila Gabrys, AOS graduate student, will discuss "Lake Effect Cloud Evolution over the Great Lakes from a Satellite Perspective." Livestream: go.wisc.edu/uwaos-youtube

@professoroyola.bsky.social and the SOARs research group attended the EAA AirVenture Oshkosh to connect with aviation stakeholders. Part of the group’s research focuses on aviation weather hazards, such as turbulence, which is becoming more frequent and severe in key flight corridors across the US.

Join us today for a Department Seminar/PhD Defense at 1:00 pm CDT! Jerrold Acdan, AOS graduate student, will discuss "Wildfire Smoke Impacts on Air Quality and Ozone Production Chemistry in the Lake Michigan Region." Livestream: go.wisc.edu/uwaos-youtube

CCR Director and AOS Affiliate Scientist Michael Notaro has led STEM camps aimed at fostering neurodiversity in science for several years. He spoke to WMTV 15 News about how their long-term future is unclear due to funding cuts.

AOS Professional MS students made a trip to the Kegonsa Research Campus to visit an agrivoltaics site. They explored research at the intersection of solar energy, agriculture, climate, and water, such as @profdesai.bsky.social and his Ecometeorology Lab's work with flux towers. 📸: Josh Arnold

Stormy scenes this morning as captured by our east-facing rooftop camera.

oin us today for a Department Seminar/PhD Defense at noon CDT! Patrick Beaty, AOS graduate student, will discuss "An Unusual Case of Rapid Cyclogenesis in the Northeast Pacific Basin." Livestream: go.wisc.edu/uwaos-youtube

In partnership with the University of Wisconsin Digital Collections Center, we had the opportunity to archive a portion of the department’s historical photos. We're happy to share that the collection is now live: search.library.wisc.edu/digital/AAOS...

The Weather Enterprise is changing fast and facing workforce reductions, funding cuts, and new challenges. Join AMS Past Presidents as they explore where we go from here, along with insights on AI, partnerships, and career paths for the next generation. Register today: bit.ly/46jMK1Y

The Weather Guys, Steve Ackerman and Jon Martin, talked about the latest U.S. heat wave and more on The Larry Meiller Show. Check it out: www.wpr.org/shows/larry-...

Join us this morning for a Department Seminar/MS Defense at 10 am CDT! Lizzy Kysela, AOS graduate student, will discuss "Sectoral Emission Contributions to Annual Fine Particulate Matter at Urban to Regional Scales." Livestream: www.youtube.com/watch?v=MjAk...

You can see all the latest Storm Prediction Center and Weather Prediction Center outlooks on our Outdoor Activities Dashboard. wisconet.wisc.edu/tools/outdoo...