Extended Streamflow Prediction
Issued by NWS

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FGUS65 KSTR 032123
ESPNM
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COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE
SALT LAKE CITY UT
APR 3, 2015

WATER SUPPLY INFORMATION FOR
    SAN JUAN RIVER BASIN


PRECIPITATION (% OF AVERAGE) AND SNOWPACK (% OF MEDIAN):

SUBBASIN                 MAR PRECIP     OCT-MAR PREC   APR 1 SNOWPACK
----------------------   ----------     ------------    ---------------
ABOVE NAVAJO RES              65             75                55
ANIMAS                        55             75                60
LOWER SAN JUAN                55             85                 -

******************************************************************************
OBSERVED STREAMFLOW SUMMARY (% OF AVERAGE):

                         MAR FLOW       OCT-MAR FLOW
----------------------   --------       ------------
BASIN AVERAGE               100%            110%

******************************************************************************
RESERVOIR STORAGE AS OF APR 1:

RESERVOIR                % AVERAGE
---------------------    ----------
NAVAJO                       85
VALLECITO                   157
LEMON                       106

TOTAL                        88



Developed:                    Apr 1 2015


San Juan River Basin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
San Juan River
  Pagosa Springs                  Apr-Jul     95    44    142     67    215
  Carracas, nr                    Apr-Jul    165    43    240    120    380
Rio Blanco River
  Pagosa Springs, nr, Blanco Dam  Apr-Jul     27    50     38   18.0     54
Navajo River
  Chromo, nr, Oso Div Dam, blo    Apr-Jul     31    48     42     21     65
Piedra River
  Arboles, nr                     Apr-Jul    105    50    160     77    210
Los Pinos River
  Vallecito Res, Bayfield, nr     Apr-Jul    115    59    159     80    194
San Juan River
  Navajo Res, Archuleta, nr       Apr-Jul    310    42    490    225    735
Florida River
  Lemon Res, Durango, nr          Apr-Jul     27    49     40   18.0     55
Animas River
  Durango                         Apr-Jul    260    63    340    200    415
San Juan River
  Farmington                      Apr-Jul    480    44    730    370   1100
La Plata River
  Hesperus                        Apr-Jul   10.0    43   16.0    6.0     23
San Juan River
  Bluff, nr                       Apr-Jul    440    40    675    325   1100
Mancos River
  Mancos, nr                      Apr-Jul   14.0    45     20    7.8     31

MP    Most probable volume in 1000 acre-feet.
MP%   Most probable volume in percent of the 1981-2010 average.
RMAX  Volume that has a 10 percent chance of being exceeded.
RMIN  Volume that has a 90 percent chance of being exceeded.
AVG   Average volume for the 1981-2010 period.

All forecast volumes reflect natural flow.  Actual observed flow may
be affected by upstream water management.

CBRFC/G.Smith





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