Western Weather Consultants report that their cloud-seeding efforts increased Summit County snowfall by 12 to 22 inches last winter

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From the Summit County Citizens Voice (Bob Berwyn):

This year, the $274,000 central Colorado mountains program includes seven Front Range water providers and four ski areas: Arapahoe Basin, Keystone, Winter Park and Breckenridge, all contributing to the cost of the cloud-seeding program, according Joe Busto, head of the state’s weather modification program. The CWCB supports the program with grant funding…

The report estimates that last winter’s cloud-seeding between early November and early February resulted in an additional 12 inches of snow at Breckenridge, 16 inches at Keystone and 22 inches at Arapahoe Basin…

To avoid unwanted consequences such as excessive flooding, cloud-seeding operations stop when certain snowpack thresholds are reached, or if avalanche hazards rise to a critical level. For example, seeding operations in Summit County were suspended last winter during a pre-Christmas storm because of the high snowpack in the area.

Here’s the link to the report. More cloud-seeding coverage here and here.

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