Laserfiche WebLink
<br />. Western US map shows (dark blue) currently modeling, (light blue) under development, and (light purple) <br />future development of watershed modeling <br />. Streamflow forecasts for the Animas River were done by running an Ensemble Streamflow <br />Prediction(ESP) procedure out through September 2005 to create a range of possible outcomes. <br />. Moving from seasonal to daily forecasts at the request of agricultural water users, (timing of streamflows is <br />very important) and the project will creates mean daily flows. <br />. There is an MOU between 9 agencies for past five years that is implementing sharing tools for the <br />precipitation runoff modeling systems. <br />. Working with the NRCS to develop a Modular Modeling <br />System forecasting toolbox using MMS and PRMS. <br />Modeling is driven by air temperatures and hydrologic <br />response units and can run downs to I km resolution. <br />. The USGS provides watershed modeling to the U.S <br />Bureau of Reclamation with 10%,50%,90% <br />probabilities of exceedance. There is more information <br />related to the USGS Watershed and Rivers Systems <br />Modeling Program at the following links <br />http://wwwbrr.cr.usgs.gov/mms/. <br />http://wwwbrr.cr. USgs. gov /warsmp, http://www .iscmem .org, <br />http://wwwbrr.cr.usgs.gov/nroiects/SW precip runoff/papers/, <br />http://wwwbrr.cr. usgs.gov /mms <br /> <br />- 5 - <br /> <br />12000 <br /> <br />10000 <br /> <br />:0 <br />~ 8000 <br />S. <br /> <br />" <br />o 6000 <br />~ <br />'" <br />i!! 4000 <br />en <br /> <br />2000 <br /> <br />Colorado Climate Center Report (Nolan Doesken - Assistant State <br />Climatolo2:ist) <br />. No matter how much snow we have Colorado's snowpack seems to <br />melt in a well-behaved fashion. It usually takes something very <br />unusual to create major snowmelt flooding. <br />. Southwest Colorado generally dries up some in April and May and <br />June and is dry climatologically. <br />. The Front Range is vulnerable in the spring. Beginning in March, <br />April, and May, the storm tracks seem to slow down and sometimes <br />stall. <br />. All it takes is one storm system to cause problems. Recall the April <br />1999 event when Colorado had a low snowpack, yet the last two <br />weeks in April the rains kicked in and there was significant flooding. <br />. For Big thunderstorms in the spring, the common variables for <br />flooding seem to be high soil moisture and relative high humidity. <br /> <br />ESP Animas River @ Durango <br /> <br /> <br />-+-1981 (.68) <br />-+-1982 (.45) <br />__1983(.23) <br />-it-1986 (.50) <br />__1987(.95) <br />__1988(.73) <br />-+-1989 (.99) <br />-1990(.09) <br />-1991(.91) <br />1992(.86) <br />1993 (.64) <br />1994 (.59) <br />__1995(.14) <br />__1996(.05) <br />__1997(.41) <br />-+-1998 (.55) <br />-1999(.36) <br />-2000(.82) <br />-+-2001 (.32) <br />__2002(.77) <br />__2003(.18) <br />__2004(.27) <br /> <br />lDlDlDlDl()l()l() <br />0000000 <br />0000000 <br />NNNNNNN <br />LO m N to (3 ;;a: t::: <br />LO ~ to fa t:: ~ co <br /> <br /> <br />Enhanced Snowpack Assessment USBR (Steve Hunter) <br />. USBR and CWCB are collaborating to map snowpack . Daily snow products are online for snow water <br />equivalent, snow water equivalent change, and snow depth for the 2003-2004 and 2004-2005 season. <br />The project has developed on line daily mapping products that can be found at <br />http://www.usbr.gov/pmts/rivers/awards/SNODAS/SNODAS CO hist.html. There Bureau has <br />additional precipitation information for Colorado at the following site <br />http://www .usbr. gov /pmts/rivers/awards/Co/Colorado .html <br />. This is a near real time (day or two lag) quantitative spatial assessment of Colorado's snowpack for all <br />of our major basins. <br /> <br />Flood Protection . Water Project Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br />