Here's the Arnette, OK supercell/tornado time lapse from May 18. I haven't gotten a full tornado time lapse in quite some time, like ever. youtu.be/Y2zl1W2PMFw

I'm sure glad the radars are still running so we can see what a hailer can do to splatter the S-band radiation in all sorts of directions, whether from side lobes or the main beam. Earth is going to get close to this.#txwx

What is this? 100kt Vrot !!! #iawx

The thing about tools like cli-MATE and ACIS is not that the data won't exist (not yet at least). It's that they make getting the information you want so...efficient. Can I write some code to do the same task? Sure, but not everyone can, and why should we need to when a great tool already exists?

This lab makes it possible for the NWS to forecast severe weather at the level we do. They can do much more too. If lost there’s no going back to fix it.

After a super windy March, this is a nice change in #okwx. This was taken from a race hosted by the Lake Thunderbird Education Foundation. thunderbirdsailingclub.org

Third night in a row of a gravity wave flying through OK. This one’s enough to reverse a 40 mph north wind to a 60 mph south wind.

Look, a gravity wave.

Here's an odd CC drop that looks like a distant debris signature SE of Van Wert, OH. It's along a shear zone but not associated with a significant reflectivity line. That's to the SW. But I can't rule out a tornado either.

Look upstairs and see some amazing supercell updraft signatures NW of Memphis.

This supercell east of Cheyenne went up with surface temps in the mid 40's F. The storm appeared to have little rain, a lot of ice, and a rather prominent peak. It's got high Zdrs (much higher than anything down low), very low CCs and high spectrum widths. I've got my own idea what it is.

Look at that string of updrafts (circled in the lower right).

Is this why the only rotating storm I see is the left mover passing over Chickasha? Knock off the lowest 700m of flow and it's all negative SRH.

Thunderstorm gravity waves are flying through the Northern Lower MI peninsula. That means high wind gusts even with low 30s F temps. Cool! See the paper by Borchardt and co-authors. doi.org/10.1175/WAF-...

I pulled up GR3 and the storm total rain was saturated at 5” over most of the Brownsville and Lowe Rio Grand area. It’s so extreme I thought it was an error. Nope.

A new cell fired up north of the older cluster west of Mt. St. Helens. But so far there are no low-level velocity perturbations (like azimuthal shear).

Regarding the PACNW severe, I'm just not seeing the CAPE anywhere near forecast. Current analysis has 500-1000 www.spc.noaa.gov/exper/mesoan...

The latest 12-month running mean global temperature anomaly... No further explanation needed. 📈 + More climate indicator visualizations: zacklabe.com/climate-chan...

A complete and all-out attack on NOAA. Without a functioning NOAA there is no function seafood industry, no functioning radar network, no functioning weather models (US or otherwise). Would you cut a personal investment that saved you 70 times over your original investment every single year? (1/3)

In addition to the amazing work Kitty did in Nome before being fired, she has a side business selling stickers. Supporting her business is a small thing that could help out a lot. Note: definitely NSFW. www.sopowart.com/s/shop

As surely as if bombs are being dropped on our cities, we are trashing our economy by trashing science: "Estimates of the value of weather and climate information to the U.S. economy exceed $100 billion annually, roughly 10x the investment made by U.S. taxpayers." www.ametsoc.org/ams/about-am...

Apparently lake effect snow was quite active off of Lakes Eufaula and Texoma #okwx this morning and yesterday. Here are a couple images of previous snow tracks and current cloud plumes.

President Zelenskyy has been one of the greatest leaders of our time, guiding Ukraine through the darkest period of its recent history, rising up to Russia’s unwarranted aggression, being an inspiration to the Ukrainian people and ensuring that Ukraine’s voice is heard on the world stage.

Inspectors General throw a flag on the dismissal play. Little by little people are standing up. All Feds are governed by policies and directives: your own agencies and OPM. Now’s a good time to know what they say.

There is just raging lake effect going on off of Lakes Erie and Ontario. KBUF is optimally sited to watch strings of mesocyclones approaching the city. I'm sure the same is going on off of Lake Ontario if it weren't for the radar elevation.

You may be interested to hear Chuck Doswell's last Severe Storms Conference talk from November of 2016 in Portland, OR. He knew then it was going to be his last conference talk. But he was active well afterwards until he couldn't be anymore. ams.confex.com/ams/28SLS/we...

Another state will add a mesonet! Keep them coming.

Huge Canadian convective warnings will be coming to an end. #AMS2025

Tony McNally of @ecmwf.bsky.social - They may not be used in the future in all the same ways as they are now, but physics-based models are the only tool we have for understanding our planet. #AMS2025

Final total + a few flurries: .43 liquid equivalent estimated by weight and 4.8” from core sample on garbage can lid resulting that gives an 11.2:1 ratio. Another Clearview can gave me a couple more grams of captured snow which appears to be >5”. I get .44” there. #okwx

I got .37” melted and 4.5” on the garbage can lid resulting in 12.2:1 ratio. I think the snowboard has a 10.8:1 ratio. Which is correct I don’t know. But the garbage can might be closer to ambient temp. #okwx

Here's a schematic I published in this 2021 piece to illustrate how even a modest delay in onset of rainy season in Southern California can dramatically amplify wildfire risk by lengthening seasonal overlap between dry vegetation and strong offshore winds during Oct-Jan. #CAfire

Snow ratio 10.6:1 retrieved in 4 min. x.com/jladue/statu...

8:45 PM PST, 1/7: The #EatonFire just started northeast of #Altadena & #Pasadena, #California with evacuation orders now in place for this #LosAngeles suburb. You MUST evacuate if you ordered, the fire IS BURNING into the city. This is a particularly dangerous situation! #wildfire #fireweather

Look at the upright instability through KS tomorrow morning? This will be a top tier electrically active synoptic winter storm! I wouldn't be surprised to hear about elevated supercells dropping hail tracks along with freezing rain and ice pellets. Then these storms turn into graupel machines.

I gotta give it to the USGS. This is a really good timelapse of the beginning of the eruption at Kilauea today.

I have no conceptual model to anticipate this event.

There are so many mesocyclones southwest of Buffalo that appears as if some are stationary but instead one appears in the same spot every time the radar sweeps the area.

What?!? There’s another tornadic supercell off the OR coast? The shear and CAPE are there. www.facebook.com/share/p/1Ake...? 1/

I posted this is FB. Take a look and welcome your thoughts. www.facebook.com/share/p/1PyU...

Check out this fine wind analysis of Helene’s winds in the southern Appalachians. www.facebook.com/share/p/15L5...

The latest Oklahoma tornado outbreak highlighted this story vignette of how the quality of life of one house's residents can be impacted by the quality of their neighbor's house. This house southwest of Harrah appeared to do ok with its standing seam rooftop holding fast.

The Hollis Mesonet's 9.24" from Nov 1-8 is eye-popping for an area of the state that's typically desolate in the cool season. But how eye-popping? One week in, the entire NOV-FEB period for 2024-25 -- 1/3 of the year -- already has more precip than any other cool season since 2000-01. 😶

I’m here at the opening of the Canadian Severe Storms Storms Lab with the first set of speakers. What an honor that I’m invited to speak here along with Daphne. There’s Harold Brooks with useful advice from a NSSL veteran, and Pieter Groenemeijer to speak about founding another lab, the ESSL.

For those interested in joining a meteorology community.

Looks like surf will go up very shortly at #32sls

Sunrise from my porch at #31SLS

Of anybody’s interested , I arranged for a weather station to be put up at the Little River Marina to support the sailors with the Lake Thunderbird Ed Foundation among other water enthusiasts. The site nicely fills in a small gap.

Norman got mostly a treat with a visually spectacular supercell right at sunset. But a few got nailed by hail. OKC got a lot more and this will be a big loss day around here.