About Us

Meet Our Team

Experienced Experts

We believe that the professionals at Weather Modification, Inc., are the most experienced, most professional experts in the fields of atmospheric sciences and weather modification. Take a moment to learn more about the dedicated people behind the leaders in atmospheric research and evaluation.

Patrick H. Sweeney

President and CEO

Patrick H. Sweeney, president and chief executive officer of Weather Modification Inc., began his career in Bowman, ND in 1975. In 1979, he was named vice president and became a stockholder of the company. He moved the operation to Fargo, ND upon gaining controlling interest of the company in the early 1990s.

Sweeney received his Bachelor of Science degree from the University of North Dakota (UND), in 1978 with a major in Industrial Technology. He received his commercial pilot instrument and multi-engine training while at UND. Prior to attending UND, Sweeney was enlisted in the United States Navy, where he specialized in radar technology.

In 2001, Sweeney was awarded the 2001 Business Innovator of the Year award, and in 2002 he was awarded the North Dakota Exporter of the Year award. He is a member of the North Dakota Pilots Association and the Aircraft Owners and Pilots Association. Sweeney holds a Certified Weather Modification Operator designation from the Weather Modification Association.

Dennis M. Afseth

Director of Electronics

Dennis M. Afseth

Dennis M. Afseth, director of electronics for Weather Modification, Inc., is responsible for weather radar system development and manufacturing. He also oversees all technical aspects regarding cloud physics equipment, ground based and airborne cloud seeding equipment, and aircraft tracking systems. Afseth and his team of technicians and engineers have extensive knowledge and experience with electronics, specialized equipment installations, and data systems integration.

Afseth entered the aviation industry with Salem Technical, where he was assigned to McDonnell Douglas Corp. as an avionics technician. Prior to joining Weather Modification, Inc., in 1993, he was an avionics technician for Southwestern Avionics. Afseth earned his AA degree in Electronics from North Dakota State College of Science in 1985.

Hans P. Ahlness

Vice President of Operations

Hans P.  Ahlness

Hans P. Ahlness is the vice president of operations for Weather Modification, Inc., where he oversees the operation of domestic and international projects. Ahlness started his career with Weather Modification, Inc., in 1977, and has been with Weather Modification, Inc. full time since 1985. He has extensive experience in both operational and research flights in all seasons.

Ahlness earned a Bachelor’s degree in Business Administration from the University of North Dakota in 1983, where he majored in Aviation Administration. He holds a commercial pilots license with single-/multi-engine and instrument ratings and is a multi-engine/instrument flight instructor, FAA airframe & powerplant mechanic, and an authorized maintenance inspector.

Ahlness is a member of the Aircraft Owners and Pilots Association and the Professional Aviation Mechanics Association. He also holds a Certified Weather Modification Operator designation from the Weather Modification Association. In 2003, Ahlness was awarded the Distinguished Service Award from the Weather Modification Association.

James P. Sweeney

Executive Vice President

James P.  Sweeney

James P. Sweeney is the executive vice president of Weather Modification, Inc., Sweeney joined the company in 1992, and is involved in worldwide marketing and operations for Weather Modification, Inc. He oversees the organization’s more than 100 employees throughout the world.

Prior to joining Weather Modification, Inc., Sweeney worked in the commercial insurance industry. In 1995, Sweeney co-founded Fargo Jet Center, Inc., our affiliate, and is president of the organization.

Sweeney graduated from the University of North Dakota, Grand Forks, ND, with a Business Degree in Marketing. He has been active in the Fargo Area Dollars for Scholars, the Marketing Education Advisory Committee of Fargo, National Air Transportation Association and National Business Aviation Association.

Mike J. Clancy

Director of Maintenance

Mike J. Clancy

Mike J. Clancy is the director of maintenance, where he is responsible for all aircraft maintenance and modifications performed at both Fargo Jet Center, Inc., and our affiliate, Weather Modification, Inc., both stateside and overseas.

Prior to his current role, Clancy was an airframe and powerplant maintenance technician and a shop foreman for Fargo Jet Center, Inc. Clancy has held his current position since 2006.

Clancy graduated from Dakota Aero Tech with his Airframe and Powerplant Technician License, and has over 24 years of aviation maintenance experience. He is authorized to return to service all articles for which the repair station is rated as well as inspecting and receiving incoming parts.

Bruce A. Boe

Director of Meteorology

Bruce A.  Boe

Bruce A. Boe is the director of meteorology for Weather Modification, Inc., He has worked with cloud physics, radar, and aircraft since 1974 and has logged hundreds of hours in aircraft studying thunderstorms and winter storms. Prior to assuming his present position, he served for 12 years as the director of the North Dakota Atmospheric Resource Board. Boe has worked under the employ of the University of Wyoming, the U.S. Bureau of Reclamation, and the State of Montana.

Boe's technical papers have been published in the Bulletin of the American Meteorological Society, the Journal of Applied Meteorology, the Journal of Weather Modification, and Atmospheric Research. He has presented numerous papers at technical conferences.

Boe holds a Bachelor of Science degree in Earth Science in and Meteorology in 1977 from Montana State University and a Masters of Science degree in Atmospheric Science in 1981 from the University of Wyoming.