FLOOD02838

• County: Douglas
• County: Arapahoe
• Community: Greenwood Village, Aurora
• Stream Name: Cherry Creek
• Basin: South Platte
• Title: Probable Maximum Precipitation Study for Cherry Creek Reservoir - Final Report
• Date: 8/1/2003
• Prepared For: CWCB
• Prepared By: CWCB
• Floodplain - Doc Type: Project

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and Their Implications to the Temporal Distributions of the
NWS SSPMP and the A W A Team SSPMP Storms 87
5.2 Observations of Historic Extreme Precipitation Event Isohyetal
Axes and Sub-Cloud Layer and Cloud Layer Winds 95
5.3 Apparent Orographic Lift Impacts Observed with the Extreme
Precipitation Events 102

6. Storm Maximization and Transposition 104
6.1 Storm Maximization 104
6.2 Storm Transposition 104
6.3 Envelopment and Smoothing 105

7. PMP Determination 107

8. Review of the NWS Site-Specific PMP Study 108

9. Comparison of A W A Team Approach vs NWS Approach 119

10. Findings and Recommendations 121
10.! AWA TeamPMPDetermination 121
10.2 A WA Team Site-Specific PMP Values 129
10.3 Comparison of AWA Team PMP with the 1995 NWS PMP 129
10.4 Technical Review of the NWS 1995 PMP Study 130
10.5 Recommendations 130

References 131

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