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<br />- 4 - <br /> <br />o Arkansas Basin - SWSI value is 2.1 and reservoir storage is 100%, heavy snowpack has <br />prompted planning for runoff and manage storage at Pueblo to avoid spills and make room for <br />Fry-Ark water imports. <br />o Rio Grande Basin - Alamosa got .13 inches of precipitation and the mountains got 1/3 of <br />normal amount in March and will have between 120-189% of normal run off The max <br />snowpack swe has been reached and usually occurs on April 10 and happened this year near <br />March 20th. Irrigation season starts on April II tho <br />o Gunnison Basin - swsi 3.6 value is highest in the state, 126% of normal for end of March. <br />There will be excellent supply and runoff that because of cold temperatures will be month <br />later than normal this year. <br />o Colorado Basin - The SWSI value is 2.7 and the white water park/wave feature in West <br />Gelnwood Srpoings was completed in early March. <br />o Yampa/White Basin - is 0.2 value and the Yamacolo Reservoir and Elkhead Creek <br />Reservoir storage levels continue to rise throughout the month. comments from division <br />engineer, latest runoff forecast and 120% <br />o San Juan/Dolores Basin - SWSI is 3.0, storage is at 103% of normal, Durango precipitation <br />is below 30 average year, 13.33 inches for the year. The termparatures are normal and they <br />will have above average flows. ] <br />. Thomas W. Ley, DWR Chief of Hydrographic and Satellite Monitoring Branch stated that many <br />gages are iced up but some have started running and showed gage readings for Cache La Poudre near <br />mouth of Canyon, South Platte at Kersey, Clear Creek, Arkansas at Canyon City, Rio Grande at Del <br />Norte. His Power point is posted to the CWCB website with the others for the W ATF and FTF. <br /> <br />National Weather Service Short Term Forecast <br />. Treste Huse showed AHPS data (Advanced Hydrologic Prediction Services) that can be found at <br />http://www.weather.gov/ahpsl. Treste showed the 8-14 day outlook for temperature and precipitation <br /> <br />NOAA Lon2 Ran2e Forecasts <br />. A moderate-to-strong La Nina has been in place since August 2007, and is expected to continue for at <br />least another three months, possibly right through the summer. <br />. The last four months have brought above-normal moisture to Colorado's mountains, in excess of La <br />Nina-based expectations. In addition, colder-than-average temperatures have kept more snow on the <br />ground into April than has been typical for quite a few years. The next two weeks do not look too <br />promising for moisture, but EXPERIMENTAL PSD PRECIPITATION FORECAST GUIDANCE EXPERIMENTAL PSD PRECIPITATION FORECAST GUIDANCE <br />APR-JUN 2008 (issued April 11,2008) JUL - SEP 2008 (issued April 14,2008) <br />SO have been many <br />previous two-week periods <br />that ended up wet in the <br />mountains. While average <br />seasonal temperatures are <br />rising fast this time of year, <br />it appears that we will have <br />continued preference for <br />colder -than-average <br />weather in the northern <br />mountains through the <br />remainder of April, <br />delaying the snowmelt further. <br /> <br /> <br />7 <br /> <br />.5~ -10% <br /> <br /> <br />. <br /> <br />- <br /> <br />+s.. <br /> <br />-s'" <br /> <br />.11'" <br /> <br />-,." <br /> <br />Flood Protection. Water Project Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br />