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Cloud Seeding Effectiveness in the United States

The effectiveness of cloud seeding programs in the United States, including methods of measurement and federal oversight.

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Feb 3, 2026

How do state-level cloud seeding programs in the US measure effectiveness and report results to NOAA?

State-level programs in the measure effectiveness primarily through observational comparisons—target versus control areas using precipitation gauges, streamflow records, radar and satellite data, and ...