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Jeff Lukas

@lukasclimate.bsky.social

Researcher, science translator, consultant in Colorado. Weather/climate impacts on water resources, society, ecosystems. Recovering dendrochronologist. Goal: No surprises, well-informed decisions.

273 Followers  |  167 Following  |  44 Posts  |  Joined: 19.09.2023  |  2.2509

Latest posts by lukasclimate.bsky.social on Bluesky

Upper San Juan SNOTEL is at 9.8" precip in ~100 hours as of 5am 10/14. Highest among the San Juan Mts SNOTELs, but 5 others are at >7" so far.

14.10.2025 14:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Review of the Gladstone, Colorado, Rainfall Observation, October 5, 1911, and its Impact on Site-Specific Probable Maximum Precipitation (PMP) Values | Association of State Dam Safety The October 4-6, 1911, rainstorm over the southwestern US produced large rainfall amounts and significant flooding. The eight inch daily rainfall total reported on October 5 is an extreme amount for t...

Yeah, the max 2" isohyet isn't cutting it for TC precip!

It was new to me that the 8.05" in 24h at Gladstone had been thrown under the bus, first in the paper you linked, and then by Ed T and Tye P: damsafety.org/content/revi...

Upper San Juan SNOTEL picked up 3.9" in 24h a few days ago.

13.10.2025 23:19 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Link: hermes.cde.state.co.us/islandora/ob... - p. 662-671 for the Oct 1911 storm

13.10.2025 19:59 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

And ICMYI, this event is on the CO-NM REPS storm list as a Tropical storm (SPAS-1107; "Wagon Wheel, CO") with a grid max of 7.88" and obs max of 5.08".

13.10.2025 19:57 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This 1986 NWS tech memo on EPac storms that impacted SW US includes the Oct 1911 event, w/ hand-drawn TC track and details on the synoptic setup--see p. 23,25-26. www.weather.gov/media/wrh/on...

The TC itself has its own Wikipedia page as the "1911 Sonora hurricane."

13.10.2025 19:41 โ€” ๐Ÿ‘ 5    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Preview
Donate to Aid Nederland Shops and Employees Post-Fire, organized by Dan Vollmer This go fund me is to help support the business owners and employees affected โ€ฆ Dan Vollmer needs your support for Aid Nederland Shops and Employees Post-Fire

Oh, this is heartbreaking. The 15 small businesses impacted represent a big chunk of Ned. A local realtor has a gofundme up: www.gofundme.com/f/aid-nederl...

09.10.2025 21:43 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Ack--that should be the NRCS National Water and Climate Center, NWCC

08.10.2025 17:44 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

And FWIW, it's not even accurate--the Snow and Water Interactive Map is being updated with new obs from the SNOTEL observing networks. So either NRCS National Climate and Water Center staff are "essential" (I hope), or that their systems can run unattended, at least for a while.

08.10.2025 17:36 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Screenshot of a US Department of Agriculture website, the Snow and Water Interactive Map. A large text box at the top of the page reads "Due to the Radical Left Democrat shutdown, this government website will not be updated during the funding lapse. President Trump has made it clear he wants to keep the government open and
support those who feed, fuel, and clothe the American people."

Screenshot of a US Department of Agriculture website, the Snow and Water Interactive Map. A large text box at the top of the page reads "Due to the Radical Left Democrat shutdown, this government website will not be updated during the funding lapse. President Trump has made it clear he wants to keep the government open and support those who feed, fuel, and clothe the American people."

In case you were wondering, this is a completely normal way for a federal department (Agriculture) to communicate the status of its online services during a government shutdown.

08.10.2025 17:30 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Amen.

30.09.2025 21:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

As a reader: "Talent" is well supported by the evidence :)

06.09.2025 23:01 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Kathie, congrats on the new role!

28.08.2025 14:09 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Shit, this is sad to see. The ABQ bosque is a wonderful oasis for all the local biota, human and non-human.

26.08.2025 23:03 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Can confirm. Zero mentions of the Fundamental Thing That Can Not Be Named.

Also, 'change(s)' is used in the context of weather and climate all of two times.

25.08.2025 16:44 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Yeah, the deliberate conflation of (a) commercial LLMs with billions of parameters that handle millions of queries daily with (b) far smaller ML models tuned for very specific science and engineering tasks, in order to pose "AI" as a climate necessity--that's pretty egregious.

22.08.2025 16:24 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Yikes. It's currently 25.5 C in my upstairs home office, and I'm feeling sluggish enough that I'll kick the A/C on soon. Can't be a good thing to spend entire school days in rooms hotter than this. (To say nothing of the indoor air quality.)

02.07.2025 18:56 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Black and white photograph of the rocky and steep upper North Face of Mount Everest showing mountaineer Edward Norton carefully traversing the slope in the middle ground, with the snowy summit in the background. Photo taken on the 1924 Everest expedition by Howard Somervell.

Black and white photograph of the rocky and steep upper North Face of Mount Everest showing mountaineer Edward Norton carefully traversing the slope in the middle ground, with the snowy summit in the background. Photo taken on the 1924 Everest expedition by Howard Somervell.

Had no idea Somervell was an accomplished painter! He also took one of the greatest mountaineering photographs of all time, on the 1924 Everest expedition, of teammate Edward Norton near his high point of 28,126'. Still had an amazing eye for composition while oxygen-deprived and exhausted.

02.07.2025 17:29 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This is fucking insane. Closing these NOAA labs would obliterate our ability to observe, understand, and forecast the Earth System, from weather systems tomorrow to sea levels 50 years from now.

30.06.2025 16:59 โ€” ๐Ÿ‘ 140    ๐Ÿ” 75    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 4

Cooke wouldn't be the first Commissioner in recent decades to have come from a high-profile Basin-state job (Estevan Lopez), but this feels...different. Is WH/Interior signaling a tilt towards Lower Basin interests here?

Beyond that, very relieved it's someone who knows what the hell they're doing.

17.06.2025 22:46 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

We've been in Lafayette since 2021, in Louisville for 5 years before that. Our lived experience matches the data--it's gotten a *lot* noisier. In addition to the increased flight-school traffic, it feels like the private/corporate jet flights have also jumped up.

28.05.2025 15:27 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Succinct illustration of increasing exposure leading to greater risk and loss.

This is in the southeast fringe of the Denver metro area, about 8 mi east of Parker.

22.05.2025 14:51 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Last August we had a family vacay in Truckee, staying in a house in Tahoe Donner built in 2017. I was very surprised that such a recent build appeared to have zero firewise features, and no fuel mitigation, given the high risk of the site.

06.05.2025 16:24 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

DOGE arrived at NOAA this morning. There was no notice. Joe Neguse is on his way, and Attorney General Phil Weisner will be arriving soon. If there is any way you can attend the Peaceful Protest, please turn out ASAP.

325 Broadway, Boulder, CO 80305

21.04.2025 17:27 โ€” ๐Ÿ‘ 161    ๐Ÿ” 89    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 16

1PointFive's website:
"Mission: Deliver solutions that help curb global temperature rise to 1.5ยฐC"

Press release Nov 2023:
"Occidental and BlackRock Form Joint Venture [through Oxy subsidiary 1PointFive] to Develop STRATOS, the World's Largest Direct Air Capture Plant"

Greenwashing, at scale.

10.04.2025 14:13 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The USGCRP was created by Pres. Bush in 1989 and tasked by Congress in the Global Change Research Act of 1990 to coordinate federal research and produce a quadrennial assessment: the NCA.

Crippling the USGCRP is yet another abuse of power that undermines our nation's readiness for the future.

09.04.2025 15:10 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Agreed--the 'Anthropocene' ship has long sailed, and it doesn't need the stratigraphers on board in order to sustain its mission: Communicating that humans have massively impacted everything on Earth.

28.03.2025 22:16 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Zack, thanks for sharing these bits of your work. It's really painful to see who and what are being lost in this mindless culling, but it's also important to publicly document it all.

12.03.2025 14:58 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This is beyond insane. The Forest Service's top-notch research arm is vital to managing the nation's National Forests--and to the many public benefits that extend well beyond the forests' boundaries, including watersheds and water supply, wildlife populations, wildfire mitigation and safety...

07.03.2025 23:07 โ€” ๐Ÿ‘ 9    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Hey @thirstygecko.bsky.social, you'll appreciate that I'm holding up my sign with a 4' length of core mount...my unintentional tribute to NOAA Paleo & ITRDB

(for everyone else: "core mount" is a grooved piece of wood to which tree-ring core samples are glued for sanding and then analysis)

04.03.2025 02:59 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

That's me on the left, and colleague and long-time climate-adaptation guru Joel Smith on the right. Joel said he brought his "all-purpose" sign for this one. The other side of my sign has the same message, but crediting NIST. (Photo credit: Katie Clifford)

04.03.2025 00:11 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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