Calvin Thomas (Doppler) (@DopplerWx) header
Calvin Thomas (Doppler) (@DopplerWx) profile picture

Calvin Thomas (Doppler)

@DopplerWx

B.S. in Env. Sci. from Mizzou, weather and nature photographer, music artist you don't know yet. I love radar!

 Columbia, MO
Joined January 2016
  • Tweets1.2K
  • Following1.2K
  • Followers671
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Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)Photo by Calvin Thomas (Doppler) (@DopplerWx)
Replying to @SamSagnella
Sometimes your best shots come from right outside your window :) -De Soto, MO
Image from Calvin Thomas (Doppler) (@DopplerWx)
Image from Calvin Thomas (Doppler) (@DopplerWx)
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Looking from South of Columbia, MO a few minutes ago.
Image from Calvin Thomas (Doppler) (@DopplerWx)
Image from Calvin Thomas (Doppler) (@DopplerWx)
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Calvin Thomas (Doppler) retweeted
Kyle J Gillett (@wxkylegillett) profile picture
Kyle J Gillett@wxkylegillettMar 10
The enhancement of this boundary is really evident in 3hr surface temperature change analysis. Cool lake breeze CAA and warm-sector WAA clashing in N. IL is enhancing low-level convergence and low-level frontogenesis. #ILwx
Image from Kyle J Gillett (@wxkylegillett)
Image from Kyle J Gillett (@wxkylegillett)
Kyle J Gillett (@wxkylegillett) profile pictureKyle J Gillett@wxkylegillettMar 10
One heck of a boundary setting up here! #ILwx
Image from Kyle J Gillett (@wxkylegillett)
Image from Kyle J Gillett (@wxkylegillett)
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Calvin Thomas (Doppler) retweeted
diamond (@diamond_wx_) profile picture
diamond@diamond_wx_Mar 5
SharpJS v1.32 coming this friday on aguacerowx.com! - Map insets for soundings, including parameters and other overlays, thanks to @MikeBWeather! - Dynamic hodograph scaling as a setting - Bug fixes to ECape, bulk shear values and lapse rates
Image from diamond (@diamond_wx_)
Image from diamond (@diamond_wx_)
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🧵 How drones are changing tornado science (and your future warnings): 1/ 🚁 NSSL and @CIWRO_ are using uncrewed aerial systems (UAS) to fly into areas too dangerous for humans, gathering pressure, temperature, wind data and more... right where tornadoes form.
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Calvin Thomas (Doppler) retweeted
The Onion (@TheOnion) profile picture
The Onion
@TheOnion19 May 2025
Image from The Onion (@TheOnion)
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🚨 Forecasters LOVE faster radar updates from Phased Array Radar! Inside @NOAA's Hazardous Weather Testbed, we’re testing dual-pol PAR data to see how quick scans & better detail help improve warnings. ⚡ Fast updates = smarter alerts! @NOAAResearch
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Calvin Thomas (Doppler) retweeted
aguacero (@aguacerowx) profile picture
aguacero
@aguacerowx4 May 2025
With v1.2.5 released, AguaceroWx is proud to be one of the first model viewers to allow users to visualize the sub-hourly HRRR! This model has a time step of only 15 minutes and comes with limited surface parameters. Available now FOR FREE at aguacerowx.com/app
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Calvin Thomas (Doppler) retweeted
Charlie Bourdo (@CharlieBourdo) profile picture
Charlie Bourdo@CharlieBourdo29 Apr 2025
Lieowa?
Image from Charlie Bourdo (@CharlieBourdo)
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Calvin Thomas (Doppler) retweeted
@multidoppler (@multidoppler) profile picture
@multidoppler@multidoppler26 Apr 2025
Image from @multidoppler (@multidoppler)
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Calvin Thomas (Doppler) retweeted
Leah Hill ⚡️ 👍 (@leahwx4) profile picture
Leah Hill ⚡️ 👍@leahwx425 Apr 2025
Lived here my whole life. These signs give me so much anxiety 😂
Image from Leah Hill ⚡️ 👍 (@leahwx4)
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A little timelapse from earlier. Watch the occlusion take place, and notice the remnant mesocyclone moving right once the outer arm starts to come overhead :)
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Watching near Kingdom City MO #mowx
Image from Calvin Thomas (Doppler) (@DopplerWx)
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Targeting Fulton, MO today.
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Calvin Thomas (Doppler) retweeted
Sam Brandt (@sambrandt99) profile picture
Sam Brandt@sambrandt994 Apr 2025
How to identify streamwise vorticity on a hodograph, in 60 seconds
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Calvin Thomas (Doppler) retweeted
J (@Jacob_1154) profile picture
J@Jacob_11542 Apr 2025
Not my video but a friend on Facebook. Tornado on the ground North of Potosi. @ryanhallyall @NWSStLouis @fox2ch @ReedTimmerUSA
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Well, that was cool. Another good chase for the books :)
Image from Calvin Thomas (Doppler) (@DopplerWx)
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Out in New Madrid watching a tornado warned supercell.
Image from Calvin Thomas (Doppler) (@DopplerWx)
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“Out in the field” in Biehle MO
Image from Calvin Thomas (Doppler) (@DopplerWx)
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Chasing today. Target is southeast MO into the bootheel, let's see what happens :)
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This is the real college experience.
Image from Calvin Thomas (Doppler) (@DopplerWx)
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