WMOD00087

• Contract/Permit #: #85-1
• Applicant: Western Weather Consultants
• Project Name: Vail Pass
• Date: 11/1/1984
• Weather Modification - Doc Type: License & Permits

WEATHER MODIFICATION PERMIT

WY 85~
Page 4

6. Generators authorized to be used are described in Attachment 8.
Applicant also shall provide the Executive Director a description Df the
location of each generator, with reference to roads, buildings, or other
physical landmarks. Any change in location or number of generators must
be with the approval of the Department of Natural Resources.

7. Applicant shall suspend seeding operations if snDW moisture content
at selected snow CDurse sites, identified by the Department of Natural
Resources and the Contractor, reaches one or more of the following:

a. 150% of snowpack average during the months of November,
December, or January;

b. 140% of February snowpack average during the month of February;

c. 135% Df March snowpack average during the month of March.

Average snowpack for determining suspension will be calculated by
averaging snowpack readings for water content from representative snow
course and SNOfEL sites in the project area as calculated by the Soil
Conservation Service SnDw Survey Unit.

8. Applicant shall suspend seeding operations if:

a. Weather forecasts or actual storms produce unusually heavy
precipitation that could contribute tD avalanches or severe
weather conditions in the project area;

b. The ColoradD Avalanche Information Center issues an avalanche
forecast warning in the project area;

c. The Executive Director orders suspension of seeding.

9. Applicant shall consult with the Colorado Avalanche Information
Center prior to seeding and inform the Colorado State Highway Patrol
(Denver Dispatch Office) when seeding occurs.

10. Applicant shall submit reports on cloud seeding activity:

a. Copies of form WM3 - indicating all generator operations and
the intended results bi-weekly:

to the Department of Natural Resources