A bill to assure that weather modification activities and the collection of hydrometeorological information necessary to the management of water resources can be conducted in conjunction with the management and administration of wilderness areas and other Federal lands.

Directs the Secretaries of Agriculture and the Interior to permit the conduct of weather modification activities, including both atmospheric and surface activities and environmental research, which are within, over, or may affect areas which are part of the national wilderness preservation system or other Federal lands. Authorizes the respective Secretaries to prescribe such operating and monitoring conditions as each deems necessary to minimize or avoid long-term and intensive local impact on the wilderness character to the wilderness areas affected.