WMOD00284

• Applicant: Thompson, J.R., G.W. Wilderson, and D.A. Griffith, North American Weather Consultants
• Sponsor Name: USBR
• Title: Cloud Seeding Data Collection, and Analysis Assoc. with the Colo River Augmentation Demonstration Program
• Prepared For: USBR, Divison of Atmospheric Research
• Prepared By: Thompson, Wilderson, Griffith
• Date: 12/1/1987
• State: AZ
• Weather Modification - Doc Type: Scientific Study

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\ .
\EP1S0de Category/
Rank & Date
IMedina Wx Type
I
jEPisode Duration
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. 1 SLW L . 01 rom
. : Observed Brs.
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Table 3-1

Continued

Avg. All Median All Max. All Min. All
Cases Cases Cases Cases
Total
A- I ( ,,) . A- 2 ( 10) B- 2 ( I I .
(hrs.) 33 26 80 3

. Percent of Hrs.
SLW Observed

*D.T.S.F.-SLW

SLW Trend
During Episode

. Avq. SLW (rom hr-1)
a) SLW HRS. L . o 1 rom
b) Entire Episode

Percent of BrB.
SLW Mdt-Stg.

No. of Hrs. Precipe
Recorded at H. J.

Percent of Hrs. Precipe
at H. J. During Episode

*D.T.S.F.-PcPn

Total Precipe
at Happy Jack (in.1

Coldest Temp (OC)
a) at 700 mb
b) at 500 mb

23

19<M<21

61

70

79<M<81 100

205 W

200 W 360 NW

.095 .092<M<.096
.077 .070<M</075

.205
.197

32

. 27<M< 28

75

16

9<M<17

55

38

37<m<41

170 W

200 W

250 w

.54

.12<M<.193.,07

-6
-23

-5 Warmest
-22<M<-24 0 -14

3-14

3

12

Overhead to
- 75 W

.018
.002

o

o

o

20 w
& Post-
Frontal Trough

o

Coldest
-17 -35