Falko Judt

Research meteorologist at @NCAR_Science specializing in tropical meteorology and weather prediction. Hurricane aficionado. 🇺🇸/🇩🇪

[Falko Judt @cloudpr0phet]

What do hurricanes and athletes share in common?

They can both be marathoners and sprinters! 🌀🏃‍♂️

Check out our study on "Marathon vs. Sprint: Two Modes of Tropical Cyclone Rapid Intensification in a Global Convection-Permitting Simulation" for more insights. 🧵(1/16)

[Falko Judt @cloudpr0phet]

Downslope wind storm in Boulder, Colorado: clouds cresting over the Front Range and cascading downward. The "dust front" with the strongest winds kept sweeping eastward from the base of the foothills. A peak wind gust of 71 mph was recorded at my location during the event.

[Falko Judt @cloudpr0phet]

@ryanweather Marathon. AFAIK there was no evidence of center reformation that led to a brief spike in intensification before being arrested by unfavorable conditions.
Any storm that RIs from TS/Cat1 to major hurricane will most likely be a marathoner (though it could be a fast one).

[Falko Judt @cloudpr0phet]

While a Mesoscale Convective System did form this evening over the Colorado plains (left), the MPAS forecast had it farther north than observed (right)

[Falko Judt @cloudpr0phet]

🌍 The @NCAR_MMM lab at @NCAR_Science is running experimental realtime forecasts with a global 3.75-km MPAS model.

Goal: Highlight the power of global km-scale models for weather prediction from local to planetary scales, incl. tropical cyclones.

👉 https://t.co/eB3BtLx5lj

[Falko Judt @cloudpr0phet]

One advantage of hi-res global models is their ability to resolve topography and its influence on weather. In this 5-day rainfall forecast for Puerto Rico, the model predicts little to no rain along the southern coast but more than 200 mm (8 inches) in the northwestern interior.

[Journal of the Meteorological Society of Japan @JMSJ_metsoc]

New EOR & Graphical Abstract
Judt, F., and R. Rios-Berrios, 2025: Sensitivity of tropical wave structure to resolution and convection treatment in a global non-hydrostatic model.
https://t.co/ChOTFRxs6y
https://t.co/XXjYh0LCX5

[Falko Judt @cloudpr0phet]

MPAS brings Hurricane Kiko close to Hawaii (as a 45-kt tropical storm) in ~4 days creating some interesting topographical flow features
👉 https://t.co/eB3BtLx5lj
Variable: 10-m Winds, Domain: Hawaii

[Falko Judt @cloudpr0phet]

🌍 The @NCAR_MMM lab at @NCAR_Science is running experimental realtime forecasts with a global 3.75-km MPAS model.

Goal: Highlight the power of global km-scale models for weather prediction from local to planetary scales, incl. tropical cyclones.

👉 https://t.co/eB3BtLx5lj

[Falko Judt @cloudpr0phet]

Tired of guessing how many core-hours your MPAS run will devour? My new script (https://t.co/OSCvBXUbWM) helps you to get the numbers.

[Karim Douïeb @karim_douieb]

Ever wondered what a country’s meat supply looks like? 🍗🐄🐖🐟 Here’s a breakdown of meat preferences in Japan, the US & Germany—visualized as hybrid animals! A fun (and slightly cursed) way to see food stats. 🧵👇

[Falko Judt @cloudpr0phet]

Trade wind cumulus at work, transporting moisture from the boundary layer into the free troposphere

[Falko Judt @cloudpr0phet]

Cool cold front in Colorado today. We see:
1) northerly winds & colder behind the front; southerlies & warmer ahead of the front
2) convergence and initiation of showers along the front
3) the actual front is detected by radar (thin green lines just south of the showers)
#cowx

[Falko Judt @cloudpr0phet]

Every time a hurricane hits land, people question the intensity: "If it was a Cat 4, where are the Cat-4 wind reports?" The answer? Friction.
It’s like biking from pavement (ocean) to gravel (land)—an instant slowdown.

[Michael Fischer @MikeFischerWx]

I am happy to announce that I am actively looking for two PhD students to join my research group starting Fall 2025 at @MiamiRosenstiel! These positions are fully funded. Please see the slide for more info and feel free to reach out with any questions via email or DM here.

[Dr. Josh Wadler @JoshWadler]

Video of the ocean surface in #Milton from the AM P3 mission. Craziest ocean surface that I have seen

[Falko Judt @cloudpr0phet]

Hurricane models performed well with #Milton. The 15-h forecast from @HRD_AOML_NOAA's HAFS-B correctly captured: an eyewall open to the south(west), the large stratiform rainshield to the north, supercell-producing rainbands over FL, and even the weaker rainband down to Key West.

[Falko Judt @cloudpr0phet]

Lots of gravity waves---the ripples propagating radially outward---helping to disperse energy away from the storm.

[Steve Copertino @TheSteveCop]

The cirrus clouds that were obscuring the eye of #Milton have since dissipated as temperatures within the core continue to warm.

Very curious to see what recon finds in a little while

[Itai Yanai @ItaiYanai]

Doing good science is 90% finding a science buddy to constantly talk to about the project.

[Falko Judt @cloudpr0phet]

@btangyWx Looks like something out of an idealized CM1 simulation!

[Falko Judt @cloudpr0phet]

Population density maps help with *roughly* estimating human impacts. Lots of real estate in #MILTON’s way. (Also, nicely showing the “step function” of the Miami metro and its swampy hinterlands)

Source: https://t.co/wpr6RAgPDd