All clear issued for the Chautauqua Cottages area of South Boulder. Good news.

nothing like an ill-timed hdf5 version update in brew to throw your whole week into chaos 10 days out from a workshop and 4 weeks out from a conference

15” of new 24-hour snow at Wolf Creek (below) to win the snow report! 13” at Purgatory, 10” at Snowmass and Crested Butte, and 9” at Steamboat and Silverton. 7” at Vail and Beaver Creek. I-70/Summit County mountains generally saw 3-6”, with more today. #COwx

Denver averages about 12 winter days at 60°+ per winter season. They happen. But 35 winter days at 60°+ doesn't happen, at least until 2026. #COwx

I'm obsessed with the weather combo that is forecasted tomorrow. 🔥🌬️❄️🌧️

first legit mountain snowstorm since early December over the next few days. Bring it! ❄️ #cowx

The mountain snowpack so far this winter is in bad shape. Long-time Coloradans might remember two other terrible winters for snow: 1976-77 and 1980-81. Our latest blog post takes a look at how this year compares to those snow droughts of the past. #cowx

Watch as a massive crack forms in the ice on Lake Erie. An impressive view captured by GOES-19 earlier on Sunday.

the production value on the halftime show was absolutely incredible. loved the sets, the arrangements, everything

One more reminder about our open faculty position! We'll begin reviewing applications in a few weeks.

Join UCAR President Antonio Busalacchi at a town hall meeting this afternoon at #AMS2026 to discuss the threats facing NSF NCAR. https://bit.ly/3NNXHS5

Shameless plug: I expect to host a grad student through NOAA’s Lapenta program this summer to evaluate global or near-global storm-scale MPAS forecasts. Contact me for more details! And I’ll be speaking today at 4:30p CT in Rm. 362C on our regional model development efforts with MPAS! #ams2026

Attention folks in the weather, climate, disaster, wildfire, and Earth science communities: NSF has just published a new "Dear Colleague" letter inviting feedback (by Mar 13) on the proposal to dismantle the National Center for Atmospheric Research (NCAR). www.nsf.gov/funding/...

let's play the "find the ridge" game!

Current statewide snowpack is officially record low for this date. Looking at where snowpack can go from here, we'd have to get 90th percentile snowpack accumulations between now and April to get a near average peak. This will have an impact on water supply and the wildfire season. #cowx

coming back from the holidays like "...am I calculating this dot product correctly?" 🫠

NSF also only gets a 3% cut and there is language protecting indirect rates. NCAR doesn't get any explicit mentions, just that the administration has to give Congress 30 days notice before any drastic changes.

looking forward to a year filled with anxiety 😵‍💫

Denver, CO - After a whiplash of a year, December finished off in record warm territory with an impressively persistent stretch of >60F highs, leading to a remarkable monthly high temperature anomaly of +13.7F above average.

In case you want to share with your networks, this is a good article by the NYT on the broad scope of work done by NCAR and some of the key discoveries (e.g., microbursts and aviation accidents).

NEW: Xcel Energy says it will preemptively shut off power to 50,000 customers in Colorado at 10AM due to extreme winds and fire danger. Xcel now says similar conditions on Friday may result in some customers being without power for three days. co.my.xcelenergy.com/s/outage-saf...

Before the 1990s, plane crashes caused by microbursts used to kill planeloads of people fairly regularly. Dr. Ted Fujita and NCAR scientists figured out how to detect microbursts and warn pilots about them. Since then? Zero airliner crashes from microbursts.

These people are nuts. NCAR developed the GPS dropsonde, which revolutionized the understanding of TC structure, improved forecasts, and validated remote sensing platforms, as documented in over 400 peer-reviewed publications in the last 25 years. And that’s just one of NCAR’s countless advances.

NCAR does a whole lot more than just climate research, and I think calling it a climate research lab paints an incomplete picture. Atmospheric chemistry, severe thunderstorms, radar, software and tools, etc.

Snowpack back in the bad zone. Lowest statewide Dec. 15 snowpack since 2018. Some help Wednesday and this weekend, but these numbers hold at best, probably dip a bit over the next week-10 days. #COwx

Our newly opened faculty position now has a flyer that'll be shared at the AGU Fall Meeting next week and the AMS Annual Meeting next month. Please share with your networks! This QR code links to the position details: arizona.csod.com/ux/ats/caree...

Nice and windy here at ATS... 🌬️

I feel like this is an oversimplification... for the vast majority of (well-made) movies, theaters are still better than home (sound, screen, communal experience). There's no way Dune or Dune 2 are better at home. Barbie was so much fun bc of the large audiences. The Wicked songs??? excellent!

🚨 New job alert! 🚨 Want to work with me? We're searching for an open-rank, tenure-track faculty position at the University of Arizona in Hydrology & Atmospheric Sciences! Desired expertise is radar meteorology, broadly defined, with a focus on mesoscale phenomena. arizona.csod.com/ux/ats/caree...

Every Category 4 and 5 Atlantic hurricane since 2020, all together, in one group photo. H/t to @ferragamowx.bsky.social for the inspiration.

The aurora was visible with the naked eye and a 3-second iPhone exposure even within a Loveland neighborhood tonight!

Join our Virtual Prospective Student Information Session on Nov. 17, 2025 at 4 p.m. MT. Register at forms.gle/BJeBrbHe9CcE...

Red Flag Warning for the foothills today. A don’t-be-stupid day for foothills and NE Plains. #COwx

Undergraduate opportunity! 📣 The NSF SOARS program is open for applications! SOARS is an undergrad-grad bridge program focusing on promoting and supporting research, mentoring, and community. Learn more about eligibility and the app process: ucar.wd5.myworkdayjobs.com/en-US/UCAR_C...

Alrighty, ready to see something really cool? (and maybe a little nauseating) The evolution of Hurricane Melissa's mesovortices at peak strength.

#Melissa makes landfall in southwestern Jamaica near New Hope as a powerful category 5 hurricane. For the latest updates visit hurricanes.gov

I was worried for my crew mates when I saw them circling in the eye for over 20 mins. Looks like the very rough ride was confirmed. Plane had to leave early. They reported svr turb and a "sawtooth" eye. Looks like they moved 600-700ft up & down during this stretch in ~1 min.

The last hurricane hunter flights into Melissa have departed before its landfall in Jamaica. As always kudos to them for their work powering through especially powerful storms like this to collect invaluable data.

From a crewmember on yesterday's Teal 74 mission into now-Category 5 Hurricane #Melissa. As clear of an eye as you will see in the Atlantic basin.

NPR’s All Things Considered covered our renewal cut to AI2ES. www.npr.org/2025/10/21/n...

Government workers 👇🏾

Two open faculty positions at CSU! Topic areas: 1) climate dynamics and 2) applications of AI to atmospheric science. Deadline: 1 December 2025.

our research group has been obsessed with the decay and remnants of Octave this week. such a persistent (and adorable?!) low-level circulation 😍 (cc @drkimwood.bsky.social)

Anticipating steep cuts to its budget, the National Center for Atmospheric Research, one of the world’s leading climate research centers, has laid off 29 employees and decided not to fill 21 vacant positions. https://scim.ag/46yaM9g

And with the 15z advisories -- #Hurricane #Imdelda & #Humberto are just 479 miles apart. This might be the closest two simultaneous hurricanes have ever been in the Atlantic basin in the satellite era (since ~1975). Close enough for their outer sfc circulations to interact as well.

Yesterday was the wettest day in quite some time for northeastern Colorado. Widespread observations of over 1" of rain, and over 2" in some spots on the Plains. Several inches of snow in the mountains too! Map from coagmet.colostate.edu #cowx

Just a reminder that the application deadline for positions in the Hurricane Specialist Unit (HSU) & Technology and Science Branch (TSB) at the National Hurricane Center is *Tomorrow* So get those applications in!

Extremely excited to announce that I am the incoming chair for the AMS AI STAC Committee! Looking forward to leading our committee alongside @zhonghuazheng.bsky.social and @tropmetpie.bsky.social We are seeking new members to join the AI STAC, including both regular and student members.

🚨 Recruiting Two PhD/MS Students 🚨 I am looking to bring on at least two GRAs (M.S. or Ph.D. Level) beginning Spring or Fall 2026 to join our CHAOS research group. Research projects will be related to artificial intelligence and machine learning applications for extreme temperatures and rainfall

how I feel as a tropical meteorologist trying to do realtime TDR data analysis from Erin while also trying to prep for the 80 things I'm doing at the AMS Radar Conference