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Purdue EAPS SPOTTR

@eaps-spottr.bsky.social
85 followers 17 following 65 posts

Students of Purdue Observing Tornadic Thunderstorms for Research (SPOTTR): Severe Storms Field Work course. This account disseminates announcements related to the course and its activities, in near real-time from the field.

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Reposted by Purdue EAPS SPOTTR
Dr. Robin Tanamachi 🌪️ @tornatrix.bsky.social · 20/06/2026
We closed the books on #SPOTTR 2026 this week. The students continue to be my strength and inspiration! @meteodan.bsky.social @eaps-spottr.bsky.social
A group of people standing under a stormy skyA group of people standing in a fieldA group of people standing on a gravel road watching a dark cloudA large group of people eating dinner at a long table
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 08/06/2026
Our department made this recap video of our trip! www.instagram.com/reel/DZV26nE...
instagram.com
Instagram
Create an account or log in to Instagram - Share what you're into with the people who get you.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 07/06/2026
Our SPOTTR class returned to Purdue on 6 June after witnessing three tornadic storms and driving more than 3,000 miles. We collected RaXPol radar data on nearly every day of the trip. Thanks to NSF for supporting the participation of 14 students! #NSFFunded
Map of the central U.S. showing our travel route from IN to CO and back again.Ten people in a field in front of a soon-to-be tornadic supercell. (Other participants were elsewhere deploying PIPS.)
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Reposted by Purdue EAPS SPOTTR
Hailey Chambers @hail-cham.bsky.social · 07/06/2026
I’m so grateful for taking SPOTTR. Not only did I learn new ways to forecast and how different forecasting can be between regions of the U.S., I got to see what I learned on campus in real life and how research can be done in the field. I will never forget this Summer!
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 07/06/2026
Our last day of SPOTTR featured a picture perfect RaXPol deployment on a slow-moving supercell with prolific lightning and a funnel cloud near Pickrell, NE! The week has flown by! 🌪️ 📷: @hail-cham.bsky.social
A group of people watching lightning emerge from a cloud while a radar truck scans nearby.A cone-shaped funnel cloud extending downward from cloud base in the distance.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 05/06/2026
This outflow-dominant bookend supercell near Miller, SD was our storm du jour. While it didn’t produce any tornadoes, it did have a persistent wall cloud for the hour of our approach, and we collected some differential attenuation data for use in teaching!
A storm with a prominent flanking lineA group of people and a radar truck in the foreground of a large storm
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 04/06/2026
What a day! We scanned a rotating wall cloud S of Presho, SD with RaXPol, but had to abandon it just before tornadogenesis because it was coming our way. Two PIPS were deployed in the storm’s path. We also saw the last few seconds of the Ideal, SD tornado as it spun down out of the rain. What a day!
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 03/06/2026
Sounding near near Oacoma, SD at 1900 UTC
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 03/06/2026
Today’s western SD storms were a mistimed, disorganized mess, but we got a nice sunset mammatus show as a consolation prize!
Mammatus clouds over a segment of rainbow
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 02/06/2026
Sonde launch near Sturgis, SD at 2100 UTC
A group of people holding a large balloon
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 02/06/2026
Day 2: We targeted a supercell near Akron, CO and hooked a hook with RaXPol. Gustnadoes galore!
A group of people observing a distant, dusty cloud base with a ragged clear slot.
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Reposted by Purdue EAPS SPOTTR
Dan Dawson @meteodan.bsky.social · 01/06/2026
TOTALLY STRIATED @eaps-spottr.bsky.social
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 01/06/2026
We saw a fake-nado today (dishrag updraft) near Olathe, KS and scanned it with RaXPol!
A convective cloud with a funnel shape in the front (not a tornado)
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 31/05/2026
Day 1 provisional target: Nevada, MO. Watching for this OFB to lift back north and initiation in E KS. SPC mesoscale discussion 918 mirrors our thinking: www.spc.noaa.gov/products/md/...
SPC mesoscale discussion 918 focused on Missouri : A couple instances of severe hail and locally damaging gusts are possible through the afternoon
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 31/05/2026
#SPOTTR 2026 is on the road! Headed west towards better instability and cloudy skies.
A group of 20 people standing in front of a radar truck.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 30/05/2026
#SPOTTR helped educate nearly 500 people about weather, tornado safety, and radar today! Thanks to Imagination Station in Lafayette, IN, Purdue College of Science, EAPS, OU ARRC, and, of course, NSF for their support!
A group of people under an orange tent talking to families with children.A group of people under an orange tent talking to families with children.A group of people standing in front of a radar truckTwo people inflating a large balloon to launch a radiosonde with a crowd in the background watching
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 30/05/2026
Today’s the day, Indiana! Come meet RaXPol in person at Imagination Station in Lafayette from 10-3. Bring the kids! Weather balloon launches are planned at 11 am and 1 pm. Admission is FREE!
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 28/05/2026
The amazing @ameyanaik123.bsky.social has been teaching our SPOTTR students about RaXPol research and deployment drills for the last two days!
A man lecturing to a class in front of a projected series of tornado diagrams.A man pointing at the back of a radar truck in front of a group of peopleA man standing on the back of a radar truck in front of a group of people
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 27/05/2026
Here’s a WLFI-18 video news segment about our outreach event on Saturday, featuring RaXPol! www.wlfi.com/community/im...
wlfi.com
Imagination Station teaching families about disaster and emergency preparedness up close
LAFAYETTE, Ind.(WLFI) - Imagination Station is helping kids and their families explore the world of disaster and emergency preparedness.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 25/05/2026
Our #SPOTTR students got to meet RaXPol up close for the first time today! #NSFfunded @ameyanaik123.bsky.social
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 25/05/2026
#SPOTTR veterans remember their Play-Doh supercells! We cut through them with a plastic knife to teach how radar virtually slices through a storm with a microwave beam, revealing its interior structure.
A group of students in a classroom holding up Play-doh stormsA group of students in a classroom holding up Play-doh stormsA group of students in a classroom holding up Play-doh storms
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 25/05/2026
Welcome to Purdue #SPOTTR, RaXPol!
Two men in blue shirts standing in front of a radar truck marked “OU ARRC”
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 20/05/2026
We would like to extend a special thank you to Skip Talbot for giving our #SPOTTR students a primer on safe storm observation today, and for sticking around for lunch with the group afterwards!
A presentation slide that shows a woman taking a photograph of a tornado, titled
“Strategies for Safe and Effective Storm Chasing, Purdue EAPS SPOTTR, 20 May 2026, Skip Talbot”A group of people eating lunch in a cafe
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 18/05/2026
#SPOTTR launched a radiosonde on its first day of class! How’s that for experiential learning?
A group of students on a rooftop preparing to release a weather balloon.A skew-T, log P diagram and hodograph showing about 700 J/kg of MLCAPE and a curvy, backwards-S shaped hodograph
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 06/03/2026
Time for the reveal! #SPOTTR 2026 course will feature OU’s RaXPol radar! This is the first time since 2019 that we’ve had a mobile radar come out. Thanks to NSF for sponsoring this educational deployment to Purdue! arrc.ou.edu/radar_raxpol...
A radar truck parked under clear skies
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 04/03/2026
SPECIAL ANNOUNCEMENT: Thanks to the National Science Foundation, #SPOTTR 2026 will feature a special MYSTERY GUEST. Can you guess who it is??? This year's application deadline is 10 days away!
A gray polygon containing a question mark
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 19/02/2026
Congratulations to these two outstanding former #SPOTTR students!
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 07/02/2026
Applications for #SPOTTR 2026 are officially open! Deadline: 3/13/26. Questions? Email or DM the instructors, @tornatrix.bsky.social and @meteodan.bsky.social. A PDF version of the flyer below can be found here: drive.google.com/file/d/19iLu...
Summer 2026 www.eaps.purdue.edu
EAPS 43500: Severe Storms Field Work
Real Storms. Real Forecasting. Real Field Work.
[Storm photo]
Description
This 4-week summer course will focus on prediction, field observations, and case study analysis of severe storms. Students will receive instruction in severe storms forecasting, real-time radar interpretation, safe observation of severe storms, and careers in research meteorology.
Students will assist with research data collection using radiosondes, disdrometers, and portable weather stations. 
Field work can be physically and mentally challenging. Students should expect to help deploy instruments and operate equipment in difficult conditions. 
Students with valid U. S. or Canadian drivers’ licenses are expected to help drive university vehicles. 

Details:
Meeting times: MTWRF 9:00-11:00 a.m. 18 May - 12 June 2026
Field trip dates: 30 May - 6 June 2026 (Students may be continually off campus.)
Credits: 3
Prerequisites: Junior or higher standing, plus instructor permission by application only.
Enrollment limited to 12 students.
Additional $250 fee required (refunded if field trip does not occur).
Transportation and lodging are provided for the trip. Students cover food and incidental expenses.
The instructors are committed to inclusive course design. Students requiring accommodations are encouraged to contact instructors as early as possible.

How to apply:
instructors your responses to the following questions:
Why do you want to participate in this course?
What will you contribute to this course?
What do you expect to learn? 
How will this course benefit you in your future career?
Admissions decisions will be released by 21 March 2026.
If applications exceed available spots, priority will be given to students who have not previously taken this course.
Questions? Contact the instructors:
Robin Tanamachi, 
rtanamachi@purdue.edu
Dan Dawson,
dandawson@purdue.edu
Watch videos from the 2025 class! https://www.youtube.com/watch?v=M…
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 01/02/2026
We know many of you are waiting for the application cycle to open for #SPOTTR 2026. We’re working out some last-minute adjustments to the budget and instrument suite (all good!). When applications open, you’ll read it here first! Watch this space!
A group of people in a field watching a thunderstorm
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Reposted by Purdue EAPS SPOTTR
Dr. Robin Tanamachi 🌪️ @tornatrix.bsky.social · 24/01/2026
My Education Conference talk (11.2), "First-generation students gain more from atmospheric science field work experience," coauthored by L. Parker, @meteodan.bsky.social, and M. Couillard, will be in Room 350D at 2:00 p.m. Wednesday. #AMS2026 @eaps-spottr.bsky.social ams.confex.com/ams/106ANNUA...
ams.confex.com
First-generation students gain more from atmospheric science field work experience
Abstract: We report updated participant survey findings from the Students of Pu...
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 11/09/2025
We want to take a minute or two, and give much respect to the anonymous donor who helped make #SPOTTR 2025 a fantastic experience for all our participants! Read about the difference their support made in this year’s class:
eaps.purdue.edu
Forecast to field: Purdue class turns storms into a living laboratory - Department of Earth, Atmospheric, and Planetary Sciences - Purdue University
The Students of Purdue Observing Tornadic Thunderstorms for Research (SPOTTR) course, officially listed as EAPS 43500: Severe Storms Field Work, takes students beyond the classroom and into the Great ...
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 29/07/2025
Our department, Purdue EAPS, is releasing a series of video interviews with #SPOTTR students through their Superheroes of Science channel! The first video features Prof. Tanamachi @tornatrix.bsky.social describing SPOTTR's origins and ethos.
youtube.com
What's it like to take a Severe Storms Field Work Class?
YouTube video by Superheroes of Science
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Reposted by Purdue EAPS SPOTTR
Paige Ashlyn @paige-ashlyn-h.bsky.social · 13/07/2025
I haven’t processed that such an amazing experience is already over 💛🖤 Paige’s SPOTTR review coming soon…
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Reposted by Purdue EAPS SPOTTR
Morgan Siers @morgancrows.bsky.social · 12/07/2025
Some highlights from Purdue’s SPOTTR course :) special thanks to @tornatrix.bsky.social and @eaps-spottr.bsky.social for an amazing week on the plains ☺️
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 08/07/2025
#SPOTTR 2025 wrapped up its trip on Saturday! Miles driven: 3,442. Thanks to @paige-ashlyn-h.bsky.social for the wonderful graphic of our trip!
A topographic map annotating all the places SPOTTR traveled over the 7 days of the trip, circling westward from Indiana to Wyoming and back again.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 06/07/2025
SPOTTR has returned to West Lafayette! Here's a video from our last chasing day (July 4) between Bismark and Fargo, ND. Thunderstorm outflow provided a rather ominous sight in our rear view mirrors with a shelf cloud and blowing dust.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 04/07/2025
After Devils Tower, we worked our way up to Buffalo, SD, where we launched a sonde that revealed multiple small inversions and rather underwhelming 0-6 km bulk shear (19 kts). Ended the day with a fat wall cloud near Belfield, ND. #SPOTTR
Skew T log p diagram showing a deep well mixed layer, and hodograph with very little deep layer shear.People on a dirt road watching distant showersA bell shaped wall cloud Same wall cloud as before, in the process of morphing into a shelf cloud
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 04/07/2025
Earlier today, on our way to a North Dakota target, we stopped and did a little sightseeing! #SPOTTR
A group of people in front of Devils Tower in Wyoming
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Reposted by Purdue EAPS SPOTTR
Dr. Robin Tanamachi 🌪️ @tornatrix.bsky.social · 03/07/2025
Your Fake-nado of the day #SPOTTR
A backlit rain shaft with a tapered dark tendril in the middle
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 03/07/2025
Our group in front of a nonsevere storm near Spotted Horse, WY yesterday!
A group of people standing under a stormy sky.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 03/07/2025
Impressive lightning show on our drive back from dinner to the hotel in Wyoming.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 03/07/2025
July 2, 2025: We drove from Nebraska through South Dakota to Gillette, Wyoming. Students enjoyed a slow-moving, photogenic storm northwest of Gillette. Driving west in the evening, we saw the sunset with storms over the mountains and on either side of the highway.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 02/07/2025
Driving to Alliance, Nebraska on July 1.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 02/07/2025
Storms started to get much more photogenic day 3 of the chase!
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Reposted by Purdue EAPS SPOTTR
Dr. Robin Tanamachi 🌪️ @tornatrix.bsky.social · 02/07/2025
We interrupt your utterly justified rage fest to bring you some meteorological eye candy: a brilliant #hail shaft east of Alliance, NE. #newx #SPOTTR
Cumulonimbus cloud with a white waterfall of hail spilling out the left side.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 01/07/2025
#SPOTTR 2025, Day 2: hodographs were a bit longer today in NW MO and NE KS than yesterday, allowing us to target two storm clusters in those respective areas. The latter produced a funnel cloud near Centralia, KS, that we arrived too late to see. On to Nebraska tomorrow!
Storm above a highwayRadar reflectivity image of an elongated storm cluster
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 30/06/2025
We took a sounding near Richmond, MO in advance of some multicell clusters. The profile contained multiple cloud layers and was vaguely suggestive of wet microbursts. We didn't stick around long enough to find out. #mowx
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 30/06/2025
A nice way to end our first day on the road driving west towards Des Moines. A backlit storm provided an evening spectacle.
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 30/06/2025
#SPOTTR Day 1: Our 2300 UTC sounding from Anamosa, IA revealed: ✅ Instability ✅ Moisture ✅ Lift ❌ No shear for you! Result: Pulse storms and multicell clusters
Skew-T log p diagram of a sounding showing 3000 J/kg CAPE, but only 12 kt 0-6 km bulk shearThree people standing in front of a cloud
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Purdue EAPS SPOTTR @eaps-spottr.bsky.social · 29/06/2025
Departure group photo! Get ready, storms, we’re coming! #SPOTTR
A group of people standing in front of a trailer.
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