Hydrologic Outlook
Issued by NWS Denver/Boulder, CO
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746 FGUS75 KBOU 092021 ESFBOU COC001-005-013-014-019-031-035-039-047-049-057-059-069-073-075-087- 093-095-115-117-121-123-230000- Water Supply Outlook National Weather Service Denver/Boulder CO 220 PM MDT Mon Apr 9 2018 ...Water Supply Outlook for north central and northeast Colorado as of April 2018... Streamflow volume forecasts were based upon April 1st conditions. The north central Colorado mountain snowpack was 80 percent of normal in the upper Colorado River basin, 83 percent of normal in the South Platte basin, and 95 percent of normal in the North Platte basin on April 1st. Reservoir storage remains above average. Combined storage was 118 percent of average in the upper Colorado River basin, and 108 percent of average in the South Platte basin on April 1st. By April 9th the snowpack had improved to 86 percent of normal in the upper Colorado River basin, 92 percent of normal in the South Platte basin, and 100 percent of normal in the North Platte basin. With the recent snowfall, over 70 percent of the U.S. Geological Survey stream gages had near to above normal flows on April 9th. Median Forecast Volume Percent Stream and Station Period 1000 AF of Avg __________________ ______ _______ _______ South Platte River Antero Reservoir inflow Apr-Sep 5 34 Spinney Mtn Res inflow Apr-Sep 20 34 11-Mile Canyon Res inflow Apr-Sep 22 34 Cheesman Lake inflow Apr-Sep 41 33 South Platte Apr-Sep 79 38 Bear Creek Morrison Apr-Sep 8 41 Clear Creek Golden Apr-Sep 68 62 Saint Vrain Creek Lyons Apr-Sep 54 56 Boulder Creek Orodell Apr-Sep 31 57 South Boulder Creek Eldorado Springs Apr-Sep 19 50 Cache La Poudre River Canyon Mouth Apr-Sep 147 72 North Platte River Northgate Apr-Sep 195 86 Colorado River Granby Apr-Jul 185 84 Willow Creek Willow Creek Res Apr-Jul 40 85 Fraser River Winter Park Apr-Jul 18 93 Williams Fork River Williams Fork Reservoir Apr-Jul 78 81 Blue River Dillon Res Apr-Jul 140 86 Green Mtn Res Apr-Jul 225 82 Muddy Creek Wolford Mtn Res Blw Apr-Jul 33 61 Colorado River Kremmling Apr-Jul 690 80 These forecasts reflect natural flow only. Actual observed flow will likely be affected by upstream water management. Additional supportive information - Visit the Missouri Basin RFC information webpage for water supply forecasts east of the divide at weather.gov/mbrfc/water. - Visit the Colorado Basin RFC for water supply forecasts west of the divide at cbrfc.noaa.gov/lmap/lmap.php?interface=wsup. - Visit our website at weather.gov/bou for additional local weather...climate and stream information. - Long range precipitation and temperature outlooks are available at www.cpc.ncep.noaa.gov/products/predictions/. - Snowpack and reservoir data are available from the Natural Resources Conservation Service at www.wcc.nrcs.usda.gov/snow/. $$ tlh

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Page last modified: 9-Apr-2018 8:21 PM
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