WMOD00285 ‎(2)‎

• Title: Feasibility Study of Wintertime Cloud Seeding to Augment Arizona Water Supplies
• Date: 1/1/1987
• State: AZ
• Weather Modification - Doc Type: Report

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Table 18. Continued - Daily precipitation frequencies by Winslow 700
millibar wind direction for each of a wet, normal and dry winter at
station group GPl.*

PRECIPITATION FREQUENCY

Stat ion
group GPl ) 3000 & " 329c )3300 & " 3600
Range (in) Wet Norm Dry Wet Norm Dry
0 10 14 7 8 9 8
>0. - 0.025 0 0 1 0 2 0
>0.025 - 0.05 2 1 0 2 2 1
>0.05 - 0.20 6 0 4 1 0 0
>0.20 - 0.30 0 0 0 1 0 0
>0.30 - 0.40 2 0 0 0 1 0
>0.40 - 0.50 0 0 0 0 0 0
>0.50 - 0.60 0 0 0 0 0 0
>0.60 - 0.70 0 0 0 0 0 0
>0.70 - 0.80 0 0 0 1 0 0
>0.80 1 1 0 0 0 0
**
Total cases 11 2 5 5 5 1

* The 700 millibar wind directions were extracted from the 1200 Z
sounding at Winslow. Precipitation measurements were generally taken
at 1800 local. The wet, normal and dry winters were respectively,
1982-83, 1981-82, 1980-81.

** Values exclude zero precipitation counts.

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