Extended Streamflow Prediction
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8
000
FGUS65 KSTR 052243
ESPNM
TTAA00 KSLR DDHHMM
COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE
SALT LAKE CITY UT
Mar 5, 2019

WATER SUPPLY INFORMATION FOR
    SAN JUAN RIVER BASIN


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

SUBBASIN                 FEB PRECIP     OCT-FEB PREC    FEB 1 SNOWPACK
----------------------   ----------     ------------    ---------------
ABOVE NAVAJO RES             205            110               130
ANIMAS                       220            120                90
LOWER SAN JUAN               205            115                 -

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

                         FEB FLOW       OCT-FEB FLOW
----------------------   --------       ------------
BASIN AVERAGE                60%             55%

******************************************************************************
RESERVOIR STORAGE AS OF FEB 1:

RESERVOIR                % AVERAGE
---------------------    ----------
NAVAJO                       66
VALLECITO                    59
LEMON                        33

TOTAL                        65

San Juan River Basin
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
San Juan River
  Pagosa Springs           Apr-Jul    205    95    280    220    178    148    215
  Carracas, nr             Apr-Jul    360    95    500    400    300    250    380
Rio Blanco River
  Pagosa Springs, nr, Bla  Apr-Jul     55   102     70     61     45     39     54
Navajo River
  Chromo, nr, Oso Div Dam  Apr-Jul     62    95     81     69     52     44     65
Piedra River
  Arboles, nr              Apr-Jul    195    93    285    225    162    130    210
Los Pinos River
  Vallecito Res, Bayfield  Apr-Jul    205   106    270    220    183    150    194
San Juan River
  Navajo Res, Archuleta,   Apr-Jul    690    94   1010    790    570    455    735
Florida River
  Lemon Res, Durango, nr   Apr-Jul     56   102     77     63     47     39     55
Animas River
  Durango                  Apr-Jul    425   102    550    460    370    290    415
San Juan River
  Farmington               Apr-Jul   1060    96   1530   1180    860    680   1100
La Plata River
  Hesperus                 Apr-Jul     25   109     32     27   20.0   17.0     23
San Juan River
  Bluff, nr                Apr-Jul   1060    96   1560   1180    880    660   1100
Mancos River
  Mancos, nr               Apr-Jul     30    97     44     36   24.0   18.0     31

50% Most probable volume in 1000 acre-feet.
%AVG  Most probable volume in percent of the 1981-2010 average.
10% Volume that has a 10 percent chance of being exceeded.
30% Volume that has a 30 percent chance of being exceeded.
90% Volume that has a 90 percent chance of being exceeded.
70% Volume that has a 70 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


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.