NEWS STORIES - Updated 8/25/16

What's happening in the WMA today?

*NEW* (5-16-2016) The presentations from the Long Beach Annual meeting are now available online for viewing. Remember, only members can view presentations.

View the Long Beach Annual Meeting Presentations

(4/11/16) - New Documents added to the Technical Notes Section. Contact the webmaster if you have a document you would like to include!

Technical Documents Section

(2-3-16) Information for the Long Beach Meeting is now posted!

Long Beach Meeting Website

(5-22-2015): The WMA Facts Booklet is available for purchase online! Get yours TODAY!

Purchase WMA Facts Booklet

Pay Your Member Dues Online Renew Today!





"Free exchange of accurate information regarding the efficacy, safety, methodology and cost-effectiveness of weather modification activities."
"Enabling persons, political entities, and other organizations to make informed decisions about the application of weather modification technologies, to provide for adequate water supplies, and reduced natural weather hazards."


The Weather Modification Association (WMA) was organized in 1950 to cultivate a better understanding of weather modification techniques, impacts, and expectations among program sponsors, program operators, and the scientific community, and to promote ethical professional conduct and a free exchange of information.

Weather modification can be both planned, as is the case in cloud seeding (cloud modification), or inadvertent, for example, when pollution affects visibility.

Planned (deliberate) weather modification is also commonly known cloud seeding, cloud modification, and atmospheric water management.

The WMA fields a wide variety of inquiries, from domestic and foreign governmental agencies, to the student doing a report for the classroom.

If you cannot find the information you are seeking on this site, please contact us at As well, we can be reached by mail or phone at:

WMA, PO Box 845, Riverton, Utah, 84065, USA , Phone: +1 801-598-4392
Questions about this site? Email the WMA Webmaster
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