Matthew Graber

Yes, I was the crazy Midwest guy who wore shorts today

EPA to repeal its own conclusion that greenhouse gases warm the planet and threaten health Known as the endangerment finding, the decision is the legal framework that allows the EPA to regulate emissions. Its reversal could upend many climate change policies.

You can delete findings but you can not delete impacts. Personally, I choose not to turn the other way when things get hard.
www.nbcnews.com/science/clim...

Thank you for coming @katharinehayhoe.com !
Enjoyed your talk very much!

Seasonal prediction of springtime tornado activity in the United States using a hybrid model Abstract. Tornado activity in the contiguous United States (CONUS) causes fatalities and financial losses every spring, motivating attempts to skillfully predict springtime tornadoes. Such predictions...

The preprint of my next paper is now available on EGUsphere. Feel free to take a look, hoping to get some feedback on it during the review process.
egusphere.copernicus.org/preprints/20...

“Fairest in all the land”
It’s good to be back 💛

Very impressed with the research presentations today from senior undergraduate students in @climasillinois.bsky.social
Very well-polished and a good range of difficulty. They are well-prepared for careers and graduate school!

The manuscript that I will be presenting tomorrow at #AMS2026 at 2:45pm has been submitted for review!

Don’t think I’m in the Midwest anymore #AMS2026

Getting ready to take off for #AMS2026. I am a frequent flyer on Southwest and I am glad to be flying them on the final day of open seating. Going to miss the flexibility though. I am not thrilled about the change.

Paul Markowski presenting a slide with a picture of Roger Wakimoto in front mobile radars. The text says Observing the Atmosphere with Purpose: Roger Wakimoto's Early Legacy in Mesoscale Meteorology • Roger's pioneering investigations-spanning boundary-layer eddies, clear-air mesocyclones, downbursts, microbursts, bow echoes, and tornadoes-set new benchmarks for observational rigor and physical insight. • Roger's meticulous analyses and perceptive syntheses of field observations provided foundational understanding across this broad spectrum of mesoscale phenomena.

Love this summary by Paul Markowski of Roger Wakimoto’s legacy of mesoscale observations - “observing the atmosphere with purpose” #AMS2026

Looking forward to seeing y’all this week!

Not flying down to Houston for #AMS2026 until tomorrow. Given the winter storm, that ended up being a good decision. Should hopefully be a relatively easy travel day tomorrow

I tried to get funding for AMS through 4 or 5 avenues, and every one of them fell through. It feels like a backbreaker, but it’s a reality of the situation right now. Fortunately, I have the ability to fund myself even if it is tough, and hopefully my luck is different for the Madison Summit

All roads lead to Boulder (and NCAR) I share my NCAR stories spanning my career in atmospheric science.

I had to write or I’d explode. open.substack.com/pub/tornatri...

A look at a successful real-time effort to reduce flooding in western Washington last week Looking at how federal science and water agencies work together in flood events. Also - flood risk continue in the Pacific Northwest while the rest of the country warms up.

Given tonight’s news the admin wants to disband NCAR, resharing my post from earlier today about the successful reduction of flooding on the Skagit R in WA state. NCAR does foundational R&D that enables my community to do the kinds of important work I talk about here. tinyurl.com/bdebat4m

I would like someone to tell me in as few uncertain terms as possible... is the announcement at NCAR a done deal? Or is a lot of pushback about to take place to try and prevent this?

I believe so haha

I remember the first time I learned about the “spin” and “splat” terms in a class in undergrad, I thought it was a joke. Was I the only one?

Things I have learned in the progressional world, especially under an administration that does not care for what you do…
Things don’t go your way a lot more often than they do. And often it doesn’t seem fair. But you have to find ways to keep going when you get put down.

#Melissa unfortunately is still intensifying. A 9am EDT Tropical Cyclone Update indicates that winds are up to 180 mph, with an estimated minimum pressure of 896 mb.

You can see how GLM lightning has 📈 in the past hour, encircling the eye, with eye WV temp still increasing!

“Fairest in all the land (except in football), Our Own Purdue”💛

My home state of Indiana may give in to Trump’s pressure and redistrict giving Indiana a 9-0 GOP map, thus silencing 40% of the state. Which makes me very sad not just for the loss of voice in Indiana but also that it may lead to my family leaving the state after 30 years. The idea makes me very sad

First draft of my next paper, and likely Ch. 1 of my Ph.D. Dissertation, is complete. With my previous two papers, I have needed to work on my scientific writing and I hope that it is apparent that the skill is improving.

Sometimes I need to get out of own head when I think that every research project will get something groundbreaking. When in reality, many projects are just small steps towards a bigger goal, and some projects may even finish as: “I tried this, it didn’t work” and that’s still of value

This is better than Gulf of America

Possibly part of it. My thinking was moreso that having the additional requirements of classes, teaching, lots of meetings, forces me to have a daily routine and fit in research time into all of that.
But this could definitely be part of it

Does anyone else feel like they get more work done when they have a lot going on? I feel like I get more research done during the semester than the summer, I feel like it should be the opposite

Incredible lightning show in Champaign last night

Congratulations, Garrett!

Linking weather regimes to the variability of warm-season tornado activity over the United States Abstract. The contiguous United States (CONUS) experiences considerable variability in tornado activity on seasonal timescales. The high impacts of tornadoes in the CONUS motivate the need to better u...

My 2nd paper, consisting of the 2nd half of my MS Thesis, has been published in WCD. This was a long process with multiple rounds of revisions, and I am grateful it is now out. It covers warm-season weather regimes used in an empirical prediction framework. wcd.copernicus.org/articles/6/8...