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<br />- 5 - <br /> <br />. The extra spike in snowpack accumulation and snowpack melt out will delay high spring stream flows by <br />possibly two weeks or more. This is good news for spring snowmelt flooding in the southwestern Colorado. <br />HDR forecasts small rain thunderstorm events that will induce flooding but will be small in scale and <br />localized. <br /> <br />. Larry Lang mentioned that for some reason the Roaring Fork River Valley is an anomaly for snowpack and <br />snowmelt run out flooding. <br />They don't correlate very well snowpack numbers don't necessarily mean flood threat and that the high <br />streamflows are often much later than other basins. <br /> <br />Stream flow/reservoir stora2:e (Jack Bvers & Jana Ash - Division of Water Resources) <br />. The DWR used areas of concern developed by Brian Hyde of the CWCB and showed streamflow <br />hydrographs. The general theme was that there was a spike in streamflows that coincides with the earlier <br />snowmelt run out but that the cooler temperatures had led to dro s in the mean dail flow on many ages <br />throughout the state. FLOBONCO 1-2002 -2004 -20051 <br />. The graph is gage of Florida River at Bondad but <br />the high streamflow may be from evacuating <br />storage space to make room for high snowpack <br />above the watershed. <br />. Mr. Byers also noted that the South Platte River at <br />Henderson has high streamflows but that this was <br />not a flood concern. <br />. Mr. Byers also mentioned that there was a lot of <br />concern with the eastern part of the San Luis <br />Valley but the Corps, DWR, the CWCB and local <br />governments had been working to do everything <br />they could to be prepared for potential flooding. <br />For example there is a backhoe stationed at the <br />railroad bridge near Alamosa should it be needed <br />to remove debris. <br />. The DWR concern has moved from the Rio Grande basin to the southwest basins at this time. The Conejos <br />River is of some concern. <br /> <br />1000 <br />900 <br />800 <br />100 <br />600 <br />500 <br />400 <br />300 <br />200 <br />100 <br />o <br />Feb <br /> <br /> <br />Mal <br /> <br />Api <br /> <br />May <br /> <br />Jin <br /> <br />Jul <br /> <br />Aug <br /> <br />Colorado Climate Center Reoort <br />. Nolan Doesken had a previous scheduled meeting and could not attend. But did mention in an email as he <br />did at the previous FTF meeting that he was concerned about a late May spring thunderstorm that could <br />lead to flooding on Huerfano Creek. <br /> <br />Federal/State/Local Pro2rams <br /> <br />US Army Corps of Engineers <br />. Sandy Rayl, Colorado Service Office, US Army Corps of Engineers wanted to alert the Task Force to <br />developments she has had first hand in. <br />. She had met with John ofthe Florida Water District and they were concerned about a I-mile reach with 8- <br />10 potential landslide areas downstream of Lemon Dam. <br />. There is no immediate flood threat right now but there is the potential that snowmelt and a downstream <br />debris slide could dam the Florida River and impound water against the Lemon Dam embankment. In this <br />worst case scenario possibly 100+ structures may be impacted in the Florida Valley. <br />. The Florida Water District has spent $650,000 to rehabilitate the area after the 2002 Missionary Ridge Fire <br />through laying straw, re-vegetation, and erosion control features and this should help. <br /> <br />Flood Protection . Water Project Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br />