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Who We Are


Center Director -  Jessica Halofsky

Center Director Jessica Halofsky

E-mail: Contact
Phone: 360-753-7677

Jessica's research is focused on assessing potential effects of climate change on forest vegetation and disturbance regimes, using both modelling and field-based approaches. She facilitates development of climate change vulnerability assessments and adaptation plans for national forests and other partners across the western United States. Her current focus has been on developing tools to facilitate application of vulnerability assessment and adaptation information in management processes. She holds B.S. from Bucknell University (1999), a M.A. from Penn State University (2002), and a Ph.D. in Forest Science from Oregon State University.


Diana Howell

Diana Howell

E-mail: Contact Diana
Phone: 971-712-4997

Diana Howell serves as an administrative specialist for WWETAC, she recently returned to the Forest Service after a stint as an accounting technician with the VA SORCC in White City OR (near Medford). Diana holds a Bachelors degree in Religon with a minor in Intercultural Studies and she grew up in the Portland area and has lived there most of her life, outside of 15 years in San Diego where she began her federal career.


John Kim

John Kim

E-mail: Contact John
Phone: 541-750-7287

John Kim is an ecological modeller with Western Wildland Environmental Threat Assessment Center and with the Pacific Northwest Research Station. He studies climate change impacts on vegetation using dynamic global vegetation models. He has a Ph.D. in Fisheries and Wildlife Management from the University of Massachusetts, Amherst; an M.S. in Computer Science from the University of Massachusetts, Amherst; and a B.A. in Computer Science from University of California San Diego.


Matt Reilly

Matt Reilly

E-mail: Contact Matt
Phone: 706-338-1372

Matt is a forest ecologist with a wide breadth of research experiences and interests that span a range of spatial scales and levels of biological organization. His work integrates field data with cutting-edge remote sensing applications to study vegetation response to disturbance and climate change. He holds B.S. from University of Vermont (1999), a M.S. from the University of Georgia (2004), and a Ph.D. in Forest Science from Oregon State University (2015).


Thomas Timberlake

Thomas Timberlake

E-mail: Contact Thomas
Phone: 720-693-1950

Thomas joined WWETAC on a rotational detail, working on efforts to translate science into practice. He is developing tools to help managers use climate change vulnerability assessments in forest planning and management decisions. Thomas is a Presidential Management Fellow and normally works in the Forest Service’s Rocky Mountain Regional Office where he manages partnerships with municipal water providers focused on reducing wildfire risk. Thomas received a B.A. in sustainable development and environmental science from Columbia University (2012), and completed a PhD in Forest Sciences at Colorado State University (2019). Trained as a social scientist, Thomas conducted research on climate change adaptation, managing and planning for resilient ecosystems, and vulnerability assessments in the Forest Service.


Charlie Schrader-Patton

Charlie Schrader-Patton

E-mail: Contact Charlie
Phone: 541-312-4291

Charlie Schrader-Patton is a Geospatial Analyst and Application Developer with RedCastle Resources, Inc., and is working under contract for WWETAC through the Forest Service Geospatial Technology Applications Center. His work for WWETAC involves using cutting-edge geospatial technology to develop web mapping applications that tell the spatial story behind wildland threats. In addition, he provides consultation and support to WWETAC scientists regarding Remote Sensing and GIS projects. Charlie has held several positions with the Forest Service, including Wildlife Biologist and Timber Pre-Sale Technician. He received a B.A. in Biology from Lewis and Clark College and an M.S. in Forest Resource Conservation from the University of Montana.


Lisa Balduman

Lisa Balduman

E-mail: Contact Lisa
Phone: 541-750-7395

Lisa Balduman works as a technical information specialist for WWETAC. She received her B.S in Forest Biology from the State University of New York College of Environmental Science and Forestry and her M.S. in Forest Science from Oregon State University after completing a project studying the genetics of cold hardiness in coastal Douglas fir. She has worked for the Forest Service in various capacities since 1990. Lisa is a content developer for TACCIMO (Template for Assessing Climate Change Impacts and Management Options) and is contributing to the development of a new tool, FP_DECK (Forest Plan Database and Exchange of Knowledge).