This is an excerpt from the United States Air Force report on projected future developments and where it wants to be then.
Weather as a Force Multiplier: Owning the Weather in 2025
In 2025, US aerospace forces can "own the weather," as they "own the night" now. Though a high-risk effort, the investment to do so would pay high rewards. Weather modification offers both the commercial sector and the military greatly enhanced capabilities. For this to occur, technology advancements in five major areas are necessary. These are advanced nonlinear modeling techniques, computational capability, information gathering and transmission, a global sensor array, and weather intervention techniques. All of these will be greatly enhanced as we approach 2025. Current demographic, economic, and environmental trends will create global stresses that create the necessary impetus for weather modification to become a reality in the commercial sector. Its application in the military arena is a natural development as well.
Weather modification will become a part of domestic and international security and could be done unilaterally, through alliance networks--particularly regional ones--or through an ad hoc coalition or a UN framework. It could have offensive and defensive applications and even be used for deterrence purposes. The ability to generate precipitation, fog, and storms on earth or to modify space weather, improve communications through ionospheric modification (the use of ionospheric mirrors), and the production of artificial weather all are a part of an integrated set of technologies which can provide substantial increase in US, or degraded capability in an adversary, to achieve global awareness, reach, and power. Weather modification will be a part of 2025 and is an area in which the US must invest if only to be able to counter adversaries seeking such a capability.