WSP05885

• File Number: 8240.200.38.A
• Description: Coordinated Reservoir Operations
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 1/1/1998
• Author: CWCB
• Title: 1998 Coordinated Reservoir Operations Bypasses for Endangered Fish - Annual Summary of Operations for 1998 to Benefit the Endangered Fishes of the Upper Colorado River Basin
• Water Supply Pro - Doc Type: Publication

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IV. Climatic Factors

Streamflow and Mean Temperature:

Figure I illustrates the relationship between streamflow and temperature. The intent of Figure I was to see if
there were any type of relationships between peak flows at Cameo and mean daily temperature at Glenwood
Springs, as way of estimating the timing of the streamflow peak. As Figure I illustrates, it appears that in 1998,
approximately four days after the mean temperature reaches 60aF at Glenwood Springs, peak flows at Cameo
occur.

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Figure 1

Comparison of streamflow@ Cameo and Temperature @! Glenwood Springs

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Water Year

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Snow Conditions:
Snow course conditions were monitored using a compilation of the 23 SNOTEL sites in the Upper Colorado
River Basin. As indicated by Figure 2, the peak occurred shortly after the snow water equivalent dropped below
10 inches or approximately one month after maximum snow water equivalent occurred.

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