Flood Potential Outlook
Issued by NWS Denver/Boulder, CO

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FGUS75 KBOU 092021

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


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