WMOD00091

• Applicant: Western Weather Consultants
• Project Name: Procedure for Determining Seeding Rate
• Date: 11/1/1984
• Weather Modification - Doc Type: Report

; .

Each weather system will be evaluated as a potential augmentation
unit and seeding operations will be conducted in those portions of
the cloud regime which are determined to be favorable for
precipitation augmentation.

The requested generators in the network will be ignited one to
three hours prior to the onset of seedable clouds and shut down
approximately one to three hours prior to the end of the
potentially favorable period for seeding. These times should allow
for ample transport and diffusion of seeding material during the
initial precipitation period and time for the utilization of the
seeding material before conditions end or become unfavorable in the
seeded area.

In cases where low-level inversions and blocking flow are present,
the generator network will be altered from normal patterns to take
into consideration where the pooling and ventilation zones will
occur.