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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 />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 />I <br /> <br />Joe and Karen Kimmel <br />47853 WCR 153, Stoneham <br /> <br />T 9N R 56W Sec 34 south edge <br /> <br />Their place was right on the creek and experienced severe flooding. However, it appeared <br />that they were south and east of the heaviest rains. They remembered that the creek was. <br />already running that day following the rains Monday night. Rain began before dark, but <br />got heavier after dark. There was modest amounts of lightning -- which she described as <br />"sheet lightning." There were big rain drops, but no hail, and the air temperature didn't <br />seem to drop during the storm. Lightning and thunder didn't quit until after about 2 AM. <br />By then, they had evacuated to higher ground at their neighbors, the Dunnings. She also <br />showed me peak water levels, and described the timing of the flooding. They recall the <br />peak occurred not long after midnight after rising very rapidly from 11 :00 PM to midnight. <br />Their rain gauge (which was tilted a bit towards the east), had a capacity of6.5 inches. <br />She had written down that 5 inches fell that night, and she was confident the gauge had <br />not overflowed. Confidence = B <br /> <br />Gary Dollerschell <br />46001 WCR 153, Stoneham <br /> <br />T 8N R 56 W Sec 14 <br /> <br />Rain gauge report for 24 hours ending morning of7/29 1 3/4 inch <br />Rain gauge report for 24 hours ending morning of7/30 2.6" <br />Confidence "A." He just thought it was a good steady rain. No flooding, <br /> <br />Richard and Elaine Raffelson <br />0382 Logan CR 64 <br /> <br />T IIN R 55 W Sec 30 <br /> <br />Vivid recollections about driving over an area where bridge was washed out. Memories <br />of rainfall, however, were not clear other than recalling that their gauge (which held 5-6 <br />inches of rain) had been filled to the top. Data confidence rating probably "c." <br /> <br />Jim Nelson <br />Logan County <br /> <br />T I2N R55 W Sec, 34 <br />3.59" from Weather Wizard ill tipping <br />bucket gauge -- not locally calibrated <br /> <br />They were very interested, but unfortunately were not home at the time of the storm. <br />They recently purchased an automatic weather station which records total rainfall but not <br />the time or intensity, They were confident of the reading based on previous experiences <br />with their weather station, but have not tested and compared it to traditional rain gauges. <br />I suggested they get a regular manual rain gauge and compare them for a time. <br />Confidence = B <br /> <br />22 <br />
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