Flood Potential Outlook
Issued by NWS Denver/Boulder, CO

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FGUS75 KBOU 181728

Water Supply Outlook
National Weather Service Denver/Boulder CO
1128 AM MDT Tue Apr 18 2017

...Water Supply Outlook for north central and northeast Colorado as
of April 2017...

On April 18th the mountain snowpack at NRCS SNOTEL sites was 97
percent of normal in the South Platte Basin...92 percent of normal
in the upper Colorado River Basin and 86 percent of normal in the
North Platte Basin.

Basin reservoir storage at the end of March was 106 percent of
average in the South Platte Basin and 108 percent of average in the
upper Colorado River Basin. This is similar to storage last month
and also a year ago. The majority of U.S. Geological Survey gages
continued to record near to much above normal streamflow east of the
divide and near to much above normal flows west of the Continental

                                  Median Forecast
                                      Volume      Percent
Stream and Station         Period     1000 AF      of Avg
__________________         ______     _______     _______
South Platte River
 Antero Reservoir inflow   Apr-Sep      15          93
 Spinney Mtn Res inflow    Apr-Sep      41          71
 11-Mile Canyon Res inflow Apr-Sep      44          70
 Cheesman Lake inflow      Apr-Sep      74          62
 South Platte              Apr-Sep     128          62

Bear Creek
 Morrison                  Apr-Sep      11          58

Clear Creek
 Golden                    Apr-Sep      72          66

Saint Vrain Creek
 Lyons                     Apr-Sep      79          83

Boulder Creek
 Orodell                   Apr-Sep      47          87

South Boulder Creek
 Eldorado Springs          Apr-Sep      21          57

Cache La Poudre River
 Canyon Mouth              Apr-Sep     193          95

North Platte River
 Northgate                 Apr-Sep     434         197

Colorado River
 Granby                    Apr-Jul     230         105

Willow Creek
 Willow Creek Res          Apr-Jul      60         128

Fraser River
 Winter Park               Apr-Jul      21         108

Williams Fork River
 Williams Fork Reservoir   Apr-Jul     105         109

Blue River
 Dillon Res                Apr-Jul     180         110
 Green Mtn Res             Apr-Jul     300         109

Muddy Creek
 Wolford Mtn Res Blw       Apr-Jul      40          74

Colorado River
 Kremmling                 Apr-Jul     940         109

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
- Snowpack and reservoir data are available from the Natural
Resources Conservation Service at www.wcc.nrcs.usda.gov/snow/.


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