HPRCC Personnel

Martha D. Shulski, Ph.D. - Director. 2009.
Phone: (402) 472-6709
Fax: (402) 472-2946
email: Contact Martha

B.S. North Carolina State University
M.S. University of Nebraska-Lincoln
Ph.D. University of Minnesota


Dr. Shulski is responsible for administration of HPRCC grants and activities, coordination with the NOAA Regional Climate Centers, federal and state agencies, state climatologists, and climate service partners, and supervision of HPRCC service and IT personnel. She also participates in applied research projects, stakeholder engagement, and educational outreach. Her research interests are in the areas of climate variability and change, climate impacts, and high latitude climatology. Her School of Natural Resources faculty page can be found here.

Natalie Umphlett - Regional Climatologist. 2008.
Phone: (402) 472-6764
Fax: (402) 472-2946
email: Contact Natalie

B.S. University of Nebraska-Lincoln
M.S. University of Nebraska-Lincoln


As regional climatologist, Ms. Umphlett is the climate services manager and public liaison for the Center. She stays up-to-date on emerging regional climate issues and disseminates that information via monthly and quarterly climate summaries. Ms. Umphlett also designs applied climate products and decision support tools based on client needs. Public outreach is important to Ms. Umphlett and, along with partners from the National Drought Mitigation Center, she helps run the Climate Masters of Nebraska adult education program. In her spare time, she is pursuing a PhD with a Climate Assessment and Impacts specialization here at UNL.

William Sorensen - Senior Applications/Systems Programmer. 1995.
Phone: (402) 472-8767
Fax: (402) 472-2946
email: Contact Bill

B.S. University of Nebraska-Lincoln


Mr. Sorensen is responsible for development and maintenance of software for acquiring, managing, and distributing climate data. He is also involved in development of climate applications and is the HPRCC's representative on the software development team for the Applied Climate Information System project.

Stonie Cooper - Climate Center Systems Manager. 2010.
Phone: (402) 472-9180
email: Contact Stonie

B.S. University of Nebraska-Lincoln


50% HPRCC, 50% AWDN. HPRCC - Server administration and support to accomplish both the Center's climate data archiving and distribution mission, and the research and development needs of HPRCC staff and scientists. AWDN - Server administration and support, network DBA, station development, funding, and siting assistance. Budgeting and contracts specific to network equipment, expenses, evolution, and expansion.

Shellie Hanneman - Data Quality Technician. 1994.
Phone: (402) 472-6709
Fax: (402) 472-2946
email: Contact Shellie


Mrs. Hanneman is responsible for QC monitoring of the incoming data, assistance in preparation of data requests, data entry, and the retrieval of climate information.

Jamie Lahowetz - Programmer Analyst II. 2011.
Phone: (402) 472-6786
email: Contact Jamie

B.S. University of Nebraska-Lincoln


Mr. Lahowetz is responsible for providing programming support on HPRCC projects as well as transitioning the Automated Weather Data Network (AWDN) software to a new system.

Glen Roebke - Weather Network Manager. 2001.
Phone: (402) 472-6704
Cell: (402) 641-3080
email: Contact Glen


Mr. Roebke is responsible for electronic support on all HPRCC projects, including remote sites, communications linkages, and local operations. He is responsible for maintenance and calibration of various components in the climate network and data collection system.

Jinsheng You, Ph.D. Assistant Professor. 2003.
Phone: (402) 472-8765
Fax: (402) 472-2946
email: Contact Jinsheng

B.S. Hohai University, China
M.S. Hohai University, China
Ph.D. Utah State University


Dr. You is primarily responsible for evaluations of procedures and applications for data quality assurance. His recent research has focused on the automatic quality assurance procedures of the measurements from automated weather stations and stations in other climate data networks. His general research interests are in monitoring and modeling the environment, hydrological and atmospheric cycling, and land-atmosphere interactions.

Crystal J. Stiles, Ph.D. - Applied Climatologist/Postdoctoral Research Associate. 2014.
Phone: (402) 472-8208
Fax: (402) 472-2946
email: Contact Crystal

B.S. Western Kentucky University
M.S. Western Kentucky University
Ph.D. University of Nebraska-Lincoln


Dr. Stiles helps facilitate the HPRCC's role in NIDIS (National Integrated Drought Information System) activities in the Missouri River Basin. She works with various stakeholder groups, including Native American tribes, to help them enhance climate monitoring on their reservation lands. She does outreach to teach youth about climate, and she also works on applied climate research projects.

Judson Buescher - Intern. 2014.
Phone: (402) 472-4122
Fax: (402) 472-2946
email: Contact Judson


Judson is responsible for aiding technical and research staff members in various projects. This includes research, data processing, and web development. He is also responsible for preparation of data requests and the retrieval of climate information.

Disclaimer on the Use of Data and Products from the HPRCC


Climate products and tools are developed by the HPRCC and its partner Regional Climate Centers to provide users with a means to routinely access recent weather and climate data. While applied research has demonstrated that the use of such data in decision making can reduce risk and lower a user's cost, it must be pointed out that near-real-time data are preliminary in nature and sometimes contain errors. Although care is taken to remove known errors, it is possible that some data will change after receipt of written records and final quality control steps. Users are therefore forewarned to consider any negative impact that errant data might have on their business and use preliminary data and information at their own risk.


The HPRCC is not responsible for the misuse or abuse of data provided through our services, both online and full-service.


Through use of the data services through the HPRCC website, you atuomatically agree to the terms of use and disclaimer.