We're aware that the tornadoarchive site is currently down and are working to fix the problem. It may take up to 24 hours for the site to come back online. Thank you for your patience.

Excited to announce that my method for estimating wind speeds based on lofted debris in tornadoes was used as contextual evidence for upgrading the Enderlin, ND tornado to an EF5! doi.org/10.1175/MWR-... #NDwx #Enderlin #EF5 #Tornado

Drummer Anika Nilles, who previously played with Jeff Beck, will join Lee and Lifeson for a 50th anniversary tour dedicated to the memory of the late Neil Peart. Details ↓

The EF-5 drought appears to be over wow kamala.cod.edu/offs/KFGF/25...

Measure Twice, Cut Once xkcd.com/3149/

Just a reminder that NWS is considered essential during a government shutdown. Meteorologists will still go to work, forecasts will still be made, watches and warnings will be issued, data will flow. We won’t be paid until the shutdown ends, but we’ll still protect life and property as always.

Had some canned peaches to use up from a friend that moved away. So I mixed it with some fresh ones and made this. Pretty tasty. Canned peaches are meh, but at least they're out of the cabinet.

ISS astronaut Jonny Kim just shared this snap of Humberto's eye today. You can actually see the seafoam taper off between the eyewall and the eye. Amazing stuff.

1-minute Mesoscale Sector @noaa.gov #GOES19/#GOESEast Visible images depicted low-altitude mesovortices within the eye of #Humberto (along with cloud-top gravity waves). Humberto became a Category 5 hurricane as of 2100 UTC on 27 September: cimss.ssec.wisc.edu/satellite-bl...

SHARPlib 1.1.0 has been released to PyPI and conda-forge, and it was a pretty big update! Of note: - Unified Python & C++ web documentation! keltonhalbert.github.io/SHARPlib/lat... - Fully typed Python bindings - Additional parameters - Bug fixes github.com/keltonhalber...

A very warm/moist air mass for late September is in place across eastern OK south of an effective warm front. A few surface confluence boundaries (reflecting a cold front aloft?) are present in the warm sector. It's tough to pick them out in satellite, though. (1/4)

Last-minute reminder on the open SPC positions listed in this thread. They close either tomorrow or Wednesday!

Anniversary #11 with @climbingfox86.autumnsky.us is in the books. It ain't cheap, but if you can, get yourself to Nonesuch in OKC. Holy shit, that was good.

Computer card games are driven by a pseudo-random number generator. Once you seed a PRNG, the output is deterministic, so if the PRNG has a 64-bit internal state, there are 2^64 possible arrangements of cards it can give. That's a lot, but nowhere near the total number of arrangements of cards (52!)

I spent some time last weekend revamping the look of the paintball plots in autumnplot-gl. Something I'd tried a while back using a dumb method, and I figured out a much better way to do it this time. Before on the left, after on the right.

An excellent video by @gradyhillhouse.bsky.social that gets most things right on about the July 4 central Texas floods.

Want to come work for the National Hurricane Center, #NHC? There are two new job postings that were just announced yesterday. The 1st opportunity is a position within the #Hurricane Specialist Unit, #HSU: GS-13 Hurricane Specialist Position -- www.usajobs.gov/job/845559000

SPC is hiring a Warning Coordination Meteorologist (WCM) for the severe side. So if you've wanted to work for SPC as a WCM, here's your chance! Applications for this position close on Tuesday, Sep 23. Severe WCM: www.usajobs.gov/job/845565600

"Google meet is not working right now." Oh, good, it's not just me.

🚨 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

Brunch this morning.

We at GSL are excited for NSSL’s three new MPAS configurations! For the first time, their runs and ours are using a common code base, the result of 18+ months of development by both groups (plus NCAR too). MPAS-HTPO vs our MPAS_RRFSA (MPAS-G on PivotalWx) is an initial conditions comparison (1/2)…

This is AI2ES, my AI institute. No way around it other than to say this is really awful. We are doing so many amazing things! We want to keep doing amazing things but without this level of funding, we will not be able to do so.

I'm playing around with @electronjs.org for another project. The electron-forge webpack plugin likes to not report your errors, which I've already lost several hours trying to figure out. That's not a great start.

Seeing Linkin Park in Kansas City tonight with @climbingfox86.autumnsky.us.

As mentioned, I'm using a library called Docusaurus to do the documentation. Which I thought was cool because it was mostly regular markdown, but you could also make your own components with React, which I have a decent-ish foundation in. I thought interactive demos would be cool and unique.

I've released autumnplot-gl v4.0! New features: - Station plots - Support for globe view in Maplibre (Mapbox is in progress) - Support for mutiple colormaps on a contour fill plot (precipitation type, for example) - A few performance optimizations github.com/tsupinie/aut...

These storms mean business tonight! Our Camargo Mesonet site recorded wind gusts of 99 and 85 mph at the storms passed in the last hour. #okwx #okmesonet

Not strictly necessary for the docs, but my brain latched onto it and sometimes you gotta do what brain wants. New logo for autumnplot-gl. Gonna try to get some more docs stuff knocked out this weekend and release v4 with updated documentation hopefully soon.

This is a prototype of NSHARP that cross compiles to MacOS, Windows, Linux, and... the web browser! It just decoded and displayed NWS and IMET upper air BUFR sounding files at full, 1 HZ resolution (4-6k vertical levels) interactively, in real time. No runtime loading of BUFR tables needed!

A new interactive REFS (RRFS Ensemble Forecast System) viewer is coming to an SPC site near you. Probably sometime in early 2026.

Finally pushed a full 1.0.0 (not release candidate) to PyPI and conda-forge. This also means that: mamba install sharplib conda install sharplib Work now (assuming you have conda-forge set as your primary channel). There is also now a Dask/Xarray/kerchunk example notebook for HRRR data!

Where Babies Come From xkcd.com/3127/

This pretty much encapsulates my opinion on AI coding tools: If I'm gonna have to hold its hand, I may as well do it myself.

Tried something a bit closer to Detroit style pizza tonight. I probably should have left it in the oven a bit longer, but the crust was cooked through, and it was still pretty good.

Most-unstable CAPE is a common metric, but how do you find the most unstable parcel (i.e., the parcel with the most CAPE)? Taking the parcel with the maximum theta-e is a common method, but is wrong sometimes. I'd thought that's because that method sometimes picks the wrong local max in theta-e.

JUST IN: Lovell commanded the mission that almost ended in disaster after an explosion that threatened the crew's oxygen and electrical supply. The inspiring story of their survival was made into a hit movie.

Sky cover symbols in station plots in dark mode: left or right?

Ignoring all the politics, etc…this is very, very good news for NWS and meteorologists. Really, some of the best news we could have hoped for. Now we just need to get our labs, CIs, etc protected and funded.

If you’re looking for some light Monday afternoon reading, you can read up on how EF5s haven’t just disappeared, but how yearly rates of EF3s and EF4s have dropped dramatically in the last decade too (>30% and >50% drops, respectively). journals.ametsoc.org/view/journal...

Gotta brag on Kayla Wheeler (OU SoM PhD candidate), as her work on extratropical transition (ET) & tropical cyclone tornadoes has hit EOR. In addition to changes in tornado location & diurnal cycle , environments undergoing ET have slower decreases in... (1/2) journals.ametsoc.org/view/journal...

Lunch today was BLTs and fresh peaches. Tomatoes and peaches were from the farmer's market, and the bread was homemade.

Uh, no. These are just random md5 hashes. But thanks for letting me know these might also be API keys! I'm gonna go try them out!

Congratulations to Richard Thompson on receiving the 2025 AMS SLS STAC award! Rich is the Director of Forecast Operations at the Storm Prediction Center in Norman, OK. He received the award for conducting exceptional applied research to advance severe thunderstorm and tornado forecasting.

I asked about this in the Docusaurus Discord server yesterday afternoon, and thus far, I've been ignored. Which seems to be a pattern when I ask for help. Maybe I'm bad at explaining the problem. But it's kind of disheartening to ask for help and get no response.

After many months of work by numerous team members at NSSL and OSTI, the Warn-on-Forecast System transition to the NOAA VLab environment is now complete! Day 1 and there's potential for widespread significant severe weather in the northern Plains today. Forecasts here: cbwofs.vlab.noaa.gov/Forecast

With Tom Lehrer's passing, I suppose this is a moment to share the story of the prank he played on the National Security Agency, and how it went undiscovered for nearly 60 years.

I've found that how I feel my life is going is directly related to the time since I've had to deal with a Javascript bundler configuration. Relatedly, anybody here know the guts of Docusaurus' webpack config and can help me figure out why it's not handling an emscripten-compiled wasm module?