Meteorology

College of Science and Technology

Millersville Meteorology is a flagship program of the University, one that is nationally recognized for its deep and broad immersion in the atmospheric and climate sciences, and innovative curriculum in space weather, air quality, water resources, data analytics, and emergency response and disaster preparedness. Our graduates enter the workforce as knowledgeable, skilled and competent professionals. In 2020, Millersville became only the seventh university in Pennsylvania to be designated as a StormReady University.

Visit Millersville's Meteorology Programs page


meteorology students present at made in millersville conference

On April 14, 2026, two Millersville Meteorology students - Niko Omiridis and Rebecca Butterfield - presented their research at the Made In Millersville Conference. Dr. Eleanor Casas (Assistant Professor of Meteorology) served as the advisor for both students.

Niko explored how tropical cyclone cold wakes develop in the popular hurricane research model Cloud Model 1 (CM1). CM1 has the ability to couple with a highly-simplified ocean model, but Niko tested the accuracy of its simulated ocean cold wake. Niko found that the simulated cold wake in CM1 may be developing too quickly, such that both shallow and deep ocean mixed layers are deepening too quickly and that the SST is cooling too quickly when compared to both observations and numerical weather prediction models coupled to more complex ocean models. This result implies that the CM1 simulated hurricane intensification may be slowed more than in observed tropical storms and that the simulated air-sea interactions can be improved.

Two meteorology students present their research at the Made in Millersville Conference.

Rebecca explored the precipitation impacts of tropical cyclones in the Appalachian Mountains. She focused on figuring out which part of Appalachia has the largest or most frequent precipitation associated with tropical cyclone landfalls and compared that data to Pennsylvania. Rebecca found that the most impacted Appalachia region from tropical cyclone precipitation-induced freshwater flooding is in the foothills of North Carolina (where Helene hit), where upslope flow can greatly enhance precipitation amounts. The precipitation amounts in this region are so large that the average tropical cyclone system will cause widespread freshwater flooding. Interestingly, the foothills of the Poconos in northeastern PA (near Allentown) is also a "hotspot" region where the average tropical cyclone has caused significant freshwater flooding, likely also due to upslope flow. This region is often overlooked in tropical cyclone impact studies. Rebecca's results suggest that more research focusing on the meteorological factors that cause the enhanced precipitation in this region is needed, and she hopes to continue researching the weather risk and vulnerability with respect to tropical cyclone impacts in Appalachia in the future.


Millersville alumni, faculty, and students attend 106th ams conference

This year marked the 40th straight year that students in the Millersville Meteorology program had an opportunity to attend the Annual Meeting of the American Meteorological Society (AMS). The 106th Annual Meeting of the AMS took place in Houston, TX, from January 24-29, 2026. In addition to attending all other conference sessions and special symposia during the week, students had the opportunity to take part in the AMS Student Conference. Niko Omiridis, Melanie Jones, and Rebecca Butterfield presented their research as part of the student research poster session. 

AMS Collage

Additionally, Millersville University meteorology and emergency management programs hosted the MU Alumni and Friends reception on January 27th where over 200 students, alumni, and friends of the programs attended the celebration. Dr. Richard Clark (Professor of Meteorology, Emeritus and Past President of the AMS) and Dr. Sepi Yalda (Professor of Meteorology, CDRE Director) served as co-organizers for the event. The event was sponsored by generous donations from Integrated Systems Solutions, WeatherTrends, AccuWeather, Millersville University's Alumni Association, and the MU College of Science and Technology.                


tornado signatures captured by x-band weather radar at millersville

On September 4, 2025, a vigorous disturbance swept through southeastern PA and triggered multiple rounds of showers and thunderstorms. At 9:31 PM EDT, a supercell thunderstorm moving northeastward through southern Lancaster County produced a brief, EF-0 tornado near Quarryville. The Climavision X-band radar installed on Millersville University's campus in 2023 captured rotation within the thunderstorm that surrounding S-band, Doppler Radars failed to resolve due to the "radar gap" across much of the Lower Susquehanna Valley. Because the nearest Doppler Radar is nearly 100 miles away from Lancaster County, adequate low-level scans of the atmosphere are missing. Thanks to a partnership with Climavision, the X-band radar atop Millersville's water tower fills the gap and provides critical, low-level scans of the atmosphere during severe weather events. This tornado event was a prime example of this radar gap. Reflectivity from the radar showed a "hook," or appendage, on the supercell thunderstorm, and a tight "couplet" of inbound and outbound winds appeared on the storm-relative velocity (SRV) product (see below). Both features indicate rotation within a thunderstorm and a potential tornado, but neither were present in scans from the Doppler Radars in Sterling, VA; Dover, DE; or Mount Holly, NJ.

Velocity Couplet

The EF-0 tornado was confirmed by a National Weather Service (NWS) Storm Survey conducted on September 7, 2025. The brief tornado spun up southeast of Collins, PA, and had peak winds of 70 mph. It was approximately 30 yards wide and on the ground for 0.15 miles. The tornado lifted the roof off a dugout at Solanco Youth Baseball Association (see below) and caused crop damage in a field just north of Encounter Church. There were no severe weather or tornado warnings issued prior to or during the supercell thunderstorm's passage. The NWS credited students and alumni of the Millersville Meteorology program, as well as broadcast meteorologists at WGAL TV (Lancaster, PA), for their assistance with relaying reports and sharing photos from the event.

Dugout Damage

(Before/after pictures of the dugout at Solanco Youth Baseball Assocation. Pictures taken by Millersville Meteorology students Anthony Haberman, Jack Zwolinski and Adam Daugherty).


Meteorology Student chosen as noaa Hollings Scholar

Willow Kint, a sophomore Meteorology major originally from Thurmont, MD, was recently selected as a NOAA Hollings Scholar, a prestigious award that supports undergraduate students in the atmospheric and oceanic sciences. Within the Earth Sciences department, she is a member of Millersville's student chapter of the American Meteorological Society and participates in the Campus Weather Service (CWS). Kint attended orientation from June 2-4, 2026, and will complete the internship during the summer of 2027.

Meteorology student Willow Kint in front of Twisters poster.

"What really stood out to me about this opportunity was not only the financial support for both my junior and senior years, but also the internship experience that comes with it," said Kint. "My dream career is to work for the National Weather Service, so applying to this scholarship felt like the perfect opportunity to get that firsthand experience and better understand what the job truly entails."

The Hollings Scholarship is awarded to approximately 130 undergraduate students for two years of full-time study and a 10-week summer internship at a NOAA facility. The Hollings Scholarship program was established in 2005 in honor of Senator Ernest F. Hollings - a champion for ocean policy and conservation - of South Carolina. Intended to bolster undergraduate training in NOAA mission sciences, as well as increase environmental literacy, the award provides recipients with hands-on, practical experience in NOAA-related research, technology, policy, management, and education. Read more about the Hollings Scholarship Program >>


space weather activities

Millersville Meteorology remains quite active in the Space Weather (SW) Community. We are the only program in the U.S. to offer a Graduate Certificate in Space Weather and Environment: Science, Policy, and Communication that attracts professionals from a wide range of careers. Our graduates work in fields from solar physics research to space weather forecasting and occupy leadership positions across public, private, and academic sectors. A group of MU SW current students, graduates, instructors, and program coordinators (current and emeritus) attended the 2026 Space Weather Workshop in Boulder, CO (April 27-May 1, 2026).

Drs. Sepi Yalda and Rich Clark developed and co-chaired a panel presentation and discussion along with Dr. Mike Wiltberger (National Center for Atmospheric Research (NCAR)) on Building the Space Weather Workforce of the Future on May 1. The session featured Dr. Dan Welling (University of Michigan), Dr. Robert Steenburgh (NOAA, Space Weather Prediction Center), Dr. Barbara Thompson (NASA GSFC), Marissa Vara (NCAR), and Dr. Tamitha Skov (Space Weather Woman and Faculty Associate in Space Weather at Millersville University). The session also featured poster lightning talks where current student in the MU SWEN Certificate Program, Tanya Melnik, presented a talk titled "Bridging Space Weather Operations and Local News."

In addition, MU SWEN current students, Tanya Melnik, MaryBeth Kiczenski, and Vincent Ledvina along with other co-authors presented a poster titled "Initial Survey Results on Aurora Chasers' Use of Space Weather Forecasts and Uncertainty Information." Another poster titled "Bridging Space Weather Operations and Local News" was presented by Tanya Melnik and Vincent Ledvina. Two MU graduates, Mike Cook and Tony Williams were co-authors on these posters. A third poster was presented by current MU SWEN students, MaryBeth Kicsenski and Tanya Melnik, along with their co-author titled "From the Sun to Social Media: How Aurora Chasers Use Space Weather Data."

Millersville students, alumni and faculty at the 2026 Space Weather workshop in Boulder, CO. 

From Left to Right: Dr. Rich Clark (MU Meteorology Emeritus Professor), Tanya Melnik (MU SWEN current student), Bill Murtagh (Retired-NOAA Space Weather Prediction Center), MaryBeth Kicsenski (MU SWEN current student), Dr. Tamitha Skov (Faculty Associate-MU SWEN Program), Dr. Sepi Yalda (Professor of Meteorology and SWEN Coordinator), Sarah Housseal (MU Meteorology Alumna), Mike Cook (MU Meteorology Alumnus), and Vince Ledvina (MU SWEN current student)


Millersville METEORology students Excel in wxchallenge

WxChallenge is a collegiate-focused meteorological forecasting competition. It is a non-profit entity, whose income is used to maintain necessary infrastructure, promote the competition to students and faculty, and provide non-cash awards (trophies) for excellence in forecasting. Forecasters predict the daily high and low temperatures (in degrees Fahrenheit), maximum sustained wind speed (in knots), and cumulative liquid precipitation amount (in inches) for select locations across the United States. To allow for fair competition, forecasters are separated into categories. Category 3 forecasters include junior- and senior-level students, and Category 4 forecasters include freshman- and sophomore-level students. The competition runs for 10 weeks in the Fall semester and 10 weeks in the Spring semester. During this time, there are a total of 10 locations in which forecasts are made. In each location, forecasts are produced for a two-week period. At the end of that period, the top two students in each category receive trophies for their outstanding performance. There is an additional three-week tournament following the end of the Spring semester for the top 64 overall best forecasters.  

Millersville Meteorology students have a long track record of success in WxChallenge. The 2022-2023 academic year has been no exception, with multiple students across all class levels winning awards. Below is a list of the top finishers from Millersville in select cities:

  • Peter Corman: Runner-up finish (Category 4) in Knoxville, Tennessee (Oct. 10 - Oct. 24).
  • Mark Battle: 1st-place finish (Category 4) in Milwaukee, Wisconsin (Oct. 24 - Nov. 7).
  • Alex Massa: Runner-up finish (Category 3) in Olympia, Washington (Nov. 7 - Nov. 21).
  • Peter Corman: Runner-up finish (Category 4) in Denver, Colorado (Jan. 23 - Feb. 6)
  • Alex Sullivan: 1st-place finish (Category 4) in Atlanta, Georgia (Feb. 6 - Feb. 20).
  • Gavin Morgan: Runner-up finish (Category 4) in Atlanta, Georgia (Feb. 6 - Feb. 20). 
  • Matthew Teare: 1st-place finish (Category 3) in Augusta, Maine (Feb. 20 - Mar. 6). 
  • Peter Corman: 1st-place finish (Category 4) in San Angelo, Texas (Mar. 6 - Mar. 20).
  • Ethan Kerr: Runner-up finish (Category 4) in San Angelo, Texas (Mar. 6 - Mar. 20).

WxChallenge Winners

Congratulations on demonstrating true forecasting acumen in these difficult cities!


 

Weather Balloon Launch 10-03-2023

Millersville meteorology faculty and students conduct a weather balloon launch for the UNIV 103 classes.

Millersville meteorology faculty and students conducted a pair of weather balloon launches for the UNIV 103 classes on October 3, 2023, for demonstration purposes and in preparation for the Clairton project near Pittsburgh, Pennsylvania. A radiosonde, or instrument used to transmit pressure, temperature, relative humidity, and wind measurements at various levels of the atmosphere, was attached to each balloon. 


 

MILLERSVILLE METEOROLOGY

It’s more than a degree. It’s an experience! Join us!

MILLERSVILLE UNIVERSITY

A StormReady University

Learn More

Research, Activities and News


project tiltting created by Millersville METEORology students

Remember the group of Millersville meteorology students who chased the EF-3 tornado in Mullica Hill, NJ, during Hurricane Ida? Under the leadership of Weather Information Center Director Kyle Elliott, they created the Thermodynamic Investigation of LCL Thresholds at Tornadogenesis and its Influence in the Northeast and Great Plains (TILTTING) project. For details on the project and how to support the students, visit TILTTING (millersville.edu/tiltting). Nearly 20 students are involved in the project, and 7 of them deployed  to the Great Plains for a two-week period during May 2024 to conduct tornado research. Under the guidance of Dr. Greg Blumberg, this "chase team" released balloons to obtain atmospheric profiles of temperature, pressure, humidity, and wind velocity near supercells to assess the storm environment. While in the Plains, the students visited the Storm Prediction Center (SPC) in Norman, OK, and talked with forecasters on the operations floor. They met with two of the senior leads at the SPC - John Hart and Rich Thompson - and toured the vehicle bays at the National Weather Center to see the mobile radars and mesonets. On chase days, the team shared the data collected with SPC and local National Weather Service (NWS) offices. Overall, four Intensive Observation Periods (IOPs) were conducted during the two-week period, and the team is aiming to present their findings at upcoming conferences.

TILTTING plains

The students have also designed their own probes that will eventually be used to penetrate and measure wind velocity and pressure perturbations within the condensation funnel of a tornado. IOPs have and will continue to be conducted in the Northeast, with teams of 6-10 students deploying on a rotating basis. Three IOPs took place in the Northeast during Summer 2022, with another three happening during Summer 2023. Incorporation of this data into numerical weather prediction models will increase accuracy of severe weather forecasts, improve tornado warning lead times and, most importantly, save lives.

TILTTING collage

Highlight Video of MU Meteorology Research Opportunities


 Space Weather Group Conducts High-Altitude Balloon Measurements

Video Link to Test Launch with Students

As part of the Millersville University chapter of the American Meteorological Society, a group of students studying Space Weather periodically conducts launches of a balloon carrying a payload of instruments for measuring X-rays, Gamma rays, and UV rays, as well as a radiosonde for measuring air temperature, pressure, relative humidity, and wind speed and direction. The balloon typically carries its payload to an altitude of about 100,000 feet.

Program Information at a Glance

Download a printable Program Information at a Glance PDF file for more information.

Progam at a Glance