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Last modified
1/29/2010 10:11:49 AM
Creation date
10/4/2006 10:55:04 PM
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Floodplain Documents
County
Weld
Logan
Basin
South Platte
Title
A Post Evaluation of Rainfall Reports Associated with Pawnee Creek Flood of July 29-30, 1997 in Eastern Weld and Western Logan Countie in Northeastern Colorado
Date
8/1/1998
Prepared For
Weld County/Logan County
Prepared By
CSU
Floodplain - Doc Type
Flood Documentation Report
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<br />I <br />II <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />of him on the hogback between New Raymer and the S. Pawnee Creek. It appeared from <br />damage and erosion on his ranch, that rainfall decreased to the north and decreased rapidly <br />to the west. <br /> <br />I did not visit this site and did not see the exposure of the rain gauge. The approximate . <br />(nearest inch) rainfall readings and the large 3-inch report for the evening of the 28th <br />raised some uncertainty. However, the observer was diligent and enthusiastic and trusted <br />his own readings very much, suggesting a confidence of "B." I have no information with <br />which to dispute his 9"+ reading, but it would be nice to know the gauge location and <br />exposure, since this reading at this location definitely modifies the rainfall pattern from <br />what was presented in the preliminary CWCB analysis. Also, the apparent heavier rain to <br />the south could have simply been a result that type and steepness of the terrain were more <br />conducive to erosion, But no matter how you look at it, this observation along with that <br />of the Kuglers, indicates that a narrow band of very heavy rain extended as far west as <br />New Raymer. <br /> <br />Jack and Shirley Fiscus <br />66410 WCR 120, New Raymer <br /> <br />T ION R 57W See 7 or close <br /> <br />They noted between 3-4 inches, but had no special recollections or additional information. <br />Confidence not evaluated. <br /> <br />Keith and Shirley Ashbaugh <br />39434 WCR 115, New Raymer <br /> <br />T 7N R 59W Sec unknown <br /> <br />Evidence of heavy rains west of New Raymer from radar data caused me to seek out <br />information for the area near Buckingham. Their place is 8 miles west and 2 miles south <br />of New Raymer. They reported 2 inches of rain late on the 28th, but only 0.5 inches on <br />the evening of the 29th. While the storm was not far away to the north and northeast, <br />they were not hard hit. Their only special memory of the event was the 15-hour power <br />outage they experienced. Confidence = B <br /> <br />Kenneth Thompson <br />New Raymer, in town <br /> <br />T7N R58W Sec3 <br /> <br />Ken is the official National Weather Service cooperative observer in the town of New <br />Raymer. He operates both a large capacity 8-inch diameter manual rain gauge and also a <br />NWS Fischer-Porter recording rain gauge that records rainfall at 15-minute intervals, <br />There in New Raymer, 2.38 inches of rainfall was recorded for the period ending at 7:00 <br />AM on the 29th giving proof of a very significant storm in the area during the evening of <br />the 28th. In fact, 2 inches of rain fell in less than two hours in New Raymer from 9:00 to <br />11:00 PM on the 28th. The rain began again in New Raymer after 8:00 PM on the 29th <br />and ended before 1 :00 AM on the 30th. A total of3,6O inches was measured in five <br />hours. Of this total, 3,2 inches fell in just 2 hours for the period ending at 10:45 PM <br /> <br />20 <br />
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