This was one of the most intense chasings in Europe I've ever had 🌪️⛈️ An absolute beast of a supercell in northern Italy back in August 2020.

I am so thrilled about our new storm chasing project @ConvAction ! Collab between Sturmjäger NRW, @Team_B_L and more Amazing things will come! Trailer video in the comments 👇🏼

Currently working on a very exciting project! Stay tuned for what is about be released on friday… 👀

I encourage you to take a look at the most amazing chase @sturmkatze.bsky.social, Jerome and I ever had in Germany 🌪️🌪️🌪️ English subtitles are available now 💪🏼 youtu.be/q1b4AXaw5e8?...

Klare Videoempfehlung👇 youtu.be/q1b4AXaw5e8?si… Danke @aaron-stormchase.bsky.social für's Mitnehmen und Glückwunsch deinem gesamten Team. Auch uns ist dieser Tag in lebhafter Erinnerung geblieben.🌪️👀

Two years ago I barely knew anything about storm chasing and meteorlogy. A few weeks ago Jerome and @aaron-stormchase.bsky.social from Sturmjäger NRW and I threw in all our knowledge and experience to make a dreamlike storm chase come true. This is how we did it: m.youtube.com/watch?v=q1b4...

BELARUS - 09 JUL 2025 - TORNADO IF2 tornado hit Varkhi village (Vitsyebsk region), N Belarus, leaving serious damage to houses and vegetation @bramvantveen.bsky.social @federicopavan.bsky.social @weatherhistory.bsky.social @sarahhants.bsky.social @rued.com @aaron-stormchase.bsky.social

EUROPE: 06 JUN 2025 - Romania Hail up to 7cm (2.75'') fell in Leghin (Neamt), NE Romania @federicopavan.bsky.social @alluringstorms.bsky.social @dnsrop.bsky.social @rued.com @bramvantveen.bsky.social @kreisrhein.bsky.social @weatherhistory.bsky.social @sarahhants.bsky.social

Tight rotation with this one in E France!

Complex conditions for pot. #severeweather in S-Germany/Austria/Czech Republic. First "loaded gun” -> long-track supercells? -> giant hail? Later Bow Echo? -> destructive gusts? But unclear balancing of Cold Pool Boundary/Rear Inflow Jet and easterly inflow at the northern fringe of the lee low.

On saturday even the backside of some storms was looking great :)

Thank you for your kind words! 😊 You did a fantastic navigating job! I couldn't have done it any better 🙌🏼👍🏼

That was an amazing chase day with @sturmkatze.bsky.social on Saturday! Check out the time lapse of the meso dumping downpours right next to it in the comments!

And the next chase today with @sturmkatze.bsky.social 😃 All images taken west and north of Bonn, Germany. Strong outflow broke large branches off of trees.

The time lapse of the tornado near the town of Theres, BY, Germany is ready! Notice the subvortices and the vort max to the right of the tornado merging with it at the end. What a chase day! Is still can't believe it 🎉🌪️

Yesterday I teamed up with @aaron-stormchase.bsky.social and Jerome from Sturmjäger NRW for a storm chase in northern Bavaria. Non of us could have imagined that we see such an incredible multivortex tornado…

Impressive forecast soundings for tomorrow. Low LCLs and in a strip from RLP over HE to NW Bavaria CAPE, LLS and DLS overlap. This ICON-D2 sounding is between Gießen and Frankfurt. Notice the amount of streamwise vorticity in the lowest 500 m! Source: @kachelmannwetter.com

On this day 7 years ago a textbook supercell moved slowly over the plains in southern Kansas ⛈️🌪️

Neues Update für unsere Webseite! Ab sofort steht auch das ICON-EU für die Mittelfrist zur Verfügung. Darüber hinaus gab es Updates bei den Radiosonden und den Dopplerradaren.

Some convective interest today in parts of N + central Germany in moderately strong upper westerly flow atop an upper ridge. Not a lot of forcing, but shear looks to be strong enough for a few organised storms including large(r) hail + strong gusts. #weather #stormhour @aaron-stormchase.bsky.social

#SevereWX in 2024: Germany Large hail, hail sizes and monthly distribution @federicopavan.bsky.social @finnjonasrolf.bsky.social @meteohro.bsky.social @sarahhants.bsky.social @kreisrhein.bsky.social @stormchaserst.bsky.social @aaron-stormchase.bsky.social @heikowichmann.bsky.social

One year and two days ago we chased this amazing tornadic supercell during a low CAPE - high shear setup in northern France.

Zoom in on the funnel cloud of a tornado between Geuda Springs and Arkansas City, KS back in May 2018.

So much of what I've learned in the last year about tornado (and hail!) forecasting from the perspective of a chaser can be summed up with this: You want the most CAPE with the least water.

Is anyone on that storm in Belgium? Strong and large velocity couplet and a lot of lightning. Quite rare to see a (possible) supercell in January.

Evolution of Dry Intrusion and Sting Jet of #Eowyn as seen by water vapour sandwich + radar.

Short video clip from Hendrik inside #eowyn. He and @larswx.bsky.social measured wind gusts up to 187 km/h (117 mph) #stormÉowyn #storm

My chase buddy Hendrik is in Ireland right now to chase storm #éowyn. Within the windmaximum he and @larswx.bsky.social measured extreme wind gusts up to 187 km/h (117 mph). #StormÉowyn #storm

Very sad news. I learned more about severe local convective storms from Chuck Doswell than anyone else. He was a friend and mentor.

Green flash on Monday seen from Hohe Acht Mountain, Germany. A really strong inversion let this happen. It was the first time I've ever seen a green flash.

Das Pfeifen im Walde der Union. (Oder: Die Pfeifen im Walde der Union)

. Du bist sicher schlauer! 💚 #Habeck4Kanzler .

Nach aktuellem Stand ist der Täter von Magdeburg ein islamkritischer AFD Fan, der sich tief in rechten Verschwörungstheorien verloren hat. Das hindert Akteure der rechtsextremen Szene wie Frau Weidel nicht, das Attentat sofort zu instrumentalisieren, denn der Attentäter heißt Taleb, nicht Tobias.

Wow! That looks like a perfect hydraulic jump on the leeward side of a mountain 😱

Here is a summary of the 2024 #tornado season in Germany: t.co/F7XMqOE0Ce

The following is a little bit of a delayed press release on some prior work we did between NCAR and Univ. Miami, but it will continue to be explored as a research topic. The writer David Hosansky did an exemplary job describing the work in the linked story. news.ucar.edu/132998/captu...

I think this could be a nice way to find the dendritic growth zone characteristics that winter forecasters look for (depth, omega, and RH) all wrapped up into one number. I can publish the code to calculate this on GFS grids if there's interest.

Ich habe da mal einen Starterpack angelegt für die Wetter-Bubble. go.bsky.app/CabhiYj #wetter #blueskywx

This was by far not the most intense substorm of the night but the violet to blue colors were amazing! It was the first time ever, that I saw blue aurora. ⌚ 11 Oct 2024, 04:15-04:30 UTC (06:15-06:30 local daylight saving) 📍 Xanten, NRW, Germany

How do auroras form, and what causes the colors we see? A 🧵... This is one of the most common questions I get on social media, and one I have received countless times over the past month, so let's dive in together!

Chasing the beast This supercell produced two tornadoes and severe downbursts in northern Italy back in 2020. We saw the second tornado as it crossed the motorway right in front of us. I took this image about 30 min later as we repositioned. At this time the storm was in its downburst stage.

Always 💖 Don't make me tap the sign

I’m just at a loss for words right now. I can’t even think of anything that would make me feel better. I dared let myself think we were fucking better than this.

One lil politics thread: What I hate most is that I just have to accept the fact that half the country still wants this. To me, this election was, in part, us deciding whether being decent even matters any more, and I guess I've found the answer. I really believed we were better than this.

Tomorrow scares me. Whatever happens after 7 PM, I hope transgender Americans and other marginalized groups in this country will be okay, especially in deep red Oklahoma where I hope to continue to live. I pray to wake up Wednesday morning and see President-Elect Kamala Harris.

Die Energiewende ist weltweit schon weiter als viele Denken. Hier der Anteil der Erneuerbaren an der Stromerzeugung. Deutschland ist hier kein Vorreiter und geht auch keinen Sonderweg.

Jeff Bezos zwingt seine Zeitung, ihren Support für Kamala Harris zu streichen, Elon Musk manipuliert Twitter so, dass Pro-Trump-Propaganda möglichst viele indoktriniert, rechte Milliardäre & Putin finanzieren ständig neue Propaganda-Medien. Aber "die Eliten" sind links & grün?

Andrew Muehr (OU): Simulations reveal that upward directed nonlinear perturbation pressure accelerations owing to horizontal vorticity dominate those owing to vertical vorticity on the right flank of supercells yielding deviant rightward motion. #31SLS

. @streamwise.bsky.social Analyzing simulations of streamwise vorticity currents and found that SVCs favor but don't guarantee tornadogenesis and that lift beneath SVCs contribute to mesocyclone and updraft intensification. #31SLS