WMOD00312 ‎(2)‎

• Title: Cloud Seeding Feasibility for the Shasta-Trinity Watershed
• Date: 12/1/1993
• Weather Modification - Doc Type: Report

4.6
4.7
4.8
4.9
4.10
4.11

4.12
4.13
4.14
4.15
4.16

4.17

4.18

4.19
4.20
4.21
4.22
4.23
4.24
4.25

5.1

Appendix

CONTENTS - Continued

FIGURES - Ccmtinued

Page

Same as figure 4.4 but for Shasta Dam ..................................... 23
Same as figure 4.3 but for Whiskey town Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Same as figure 4.4 but for. Whiskey town Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Same as figure 4.3 but for Trinity Dam Vista Point ........................... 25
Same as figure 4.4 but for Trinity Dam Vista Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Distribution of precipitation by STORM using hourly values as measured at
Shasta Dam for the period of record 1948-19891 ............................... 28
Same as figure 4.11 but for Coffee Creek ................................... 28
Average STORM duration vs. STORM total precipitation for Shasta Dam ........... 29
Same as figure 4.13 but for Coffee Creek . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Daily inflows and storage for Shasta Reservoir for the water year 1986 . . . . . . . . . . . .. 32
Number of days suspended along with water year precipitation as a percentage
of normal for the Shasta Watershed ....................................... 33
Number of days suspended vs. water year precipitation (% of normal) for the
watershed above Shasta Dam ............................................ 33
Number of hours of precipitation with and without suspension for
the Shasta Watershed .................................................. 34
Same as figure 4.17 but for Claire Engle Reservoir ............................ 34
Same as figure 4.18 but for Coffee Creek ................................... 35
.
Precipitation statistics for Blue Canyon .................................... 37
Same as figure 4.13 but for Blue Canyon ................................... 37
Relationship between STORM hours for Coffee Creek vs. Highland Lake . . . . . . . . . . . . 39
Relationship between STORM total precipitation for Coffee Creek vs. Highland Lake .. 39
SLW (top) as derived from SHB icing detector and corresponding 15-min
precipitation for Clear Creek (bottom) ...................................... 42
Trinity drainage area map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

APPENDfl'ES

A AMS policy statement on planned and inadvertent weather modification . . . . . . . . . . . . 65

B WMO statement on the status of weather modification . . . . . . . . . . . . . . . . . . . . . .. 73

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