FLOOD03173

• County: Statewide
• Community: All
• Basin: Statewide
• Title: State of Colorado 2002 Flood Documentation Report
• Date: 1/1/2003
• Prepared For: CWCB
• Prepared By: ICON Engineering, Inc.
• Floodplain - Doc Type: Flood Documentation Report

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The only known precipitation amount, within the area of the storm, was obtained by The
Daily Sentinel newspaper in Grand Junction Colorado. According to Rifle Police Chief
Daryl Meisner, approximately 1.5 inches of rain fell in half an hour, northwest of the
town, in an area known as the Roan Plateau. It is not known how the police chief
obtained this information, although it is likely he received the information from the
National Weather Service's regional office in Grand Junction.

According to the National Climatic Data Center's NEXRAD radar images, a small pocket
of severe storm activity formed just northwest of Rifle at approximately 7:30PM. These
images are shown below, and on the following page, in Figures 2.4 through 2.8. Next to
Figures 2.4 and 2.6 is a legend indicating the higher the color number, the more intense
the storm. In order to locate the town of Rifle on the NEXRAD radar images, Figure 2.9
(next page) contains a map of the state of Colorado with the town of Rifle highlighted.

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Figure 2.4 - State of Colorado NEXRAD
Radar Image July 18th, 2002 at 7:00PM.

Figure 2.5 - State of Colorado NEXRAD
Radar Image July 18th, 2002 at 8:00PM.

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Figure 2.7- State of Colorado NEXRAD
Radar Image July 19th, 2002 at 7:00PM.

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Figure 2.6 - State of Colorado NEXRAD
Radar Image July 18th. 2002 at 9:00PM.

ICON Engineering, Inc

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January 2003