Extended Streamflow Prediction
Issued by NWS West Gulf RFC

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000
FGUS64 KFWR 030024
ESPFWR

NATIONAL WEATHER SERVICE
WEST GULF RIVER FORECAST CENTER
YEAR 2021 WATER SUPPLY FORECAST FOR JUNE 01, 2021  ISSUED JUNE 02, 2021

NORTHWESTERN RIO GRANDE IN COLORADO
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
RWGC2 RIO GRANDE AT WAGON WHEEL GAP       JUN-SEP     52 APR-SEP    173   50 59    147    228    375    340
SRGC2 SF RIO GRANDE AT SOUTH FORK         JUN-SEP     47 APR-SEP    112   88 50    98    139    170    127
DNRC2 RIO GRANDE NR DEL NORTE             JUN-SEP    114 APR-SEP    330   64129    274    411    612    515
SCKC2 SAGUACHE CK NR SAGUACHE             JUN-SEP     10 APR-SEP     26   81 11    20     31     45     32
TERC2 ALAMOSA CK AB TERRACE RESERVOIR     JUN-SEP    9.7 APR-SEP     52   76 16    42     70    102     68
MOGC2 CONEJOS R NR MOGOTE                 JUN-SEP     30 APR-SEP    133   68 54    114    160    215    194

NORTHEASTERN RIO GRANDE IN COLORADO
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
SLUC2 CULEBRA CK AT SAN LUIS              JUN-SEP    5.5 APR-SEP     21   914.9    14     26     42     23

MIDDLE SANGRE MTNS IN NEW MEXICO
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
RRFN5 RED R BL FISH HATCHERY NR QUESTA    JUN-JUL    9.2 MAR-JUL     23   67 10    18     29     42     34
VADN5 RIO HONDO NR VALDEZ                 JUN-JUL    4.8 MAR-JUL     14   766.9    11     17     24     18
TBCN5 RIO PUEBLO DE TAOS BL LOS CORDOVAS  JUN-JUL    9.0 MAR-JUL     31   86 13    23     39     55     36
DIXN5 EMBUDO CK AT DIXON                  JUN-JUL    2.4 MAR-JUL     26   54 10    18     33     53     48
CYON5 SANTA CRUZ R AT CUNDIYO             JUN-JUL    0.8 MAR-JUL    7.4   402.2   5.0   10     17     18

EL VADO
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
RCEN5 EL VADO RESERVOIR INFLOW            JUN-JUL     20 MAR-JUL    173   76 76    140    213    259    225

MAINSTEM ROUTINGS
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
OTWN5 RIO GRANDE AT OTOWI BRIDGE***       JUN-JUL    180 MAR-JUL    799   NA353    674    957   1334    720
SMFN5 RIO GRANDE AT SAN MARCIAL***        JUN-JUL    193 MAR-JUL    693   NA312    573    823   1133    510


PECOS
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
PCON5 PECOS R NR PECOS                    JUN-JUL    3.4 MAR-JUL     17   298.9    13     30     44     57
ATCN5 PECOS R NR ANTON CHICO              JUN-JUL    6.9 MAR-JUL     26   41 13    18   43     66     63
MTZN5 GALLINAS CK NR MONTEZUMA            JUN-JUL    1.0 MAR-JUL    5.9   601.8    3.4    9.6     15    9.8
SRDN5 PECOS R AB SANTA ROSA LK            JUN-JUL    9.4 MAR-JUL     30   53 14    21     50     78     56


RIO CHAMA SYSTEM
                                          RESIDUAL  50%  OFFICIAL  50%  % OF95%    75%    25%    5%   30-YR
FORECAST POINT                            PERIOD   (KAF) PERIOD   (KAF)  AVG  (KAF)  (KAF)  (KAF)  (KAF)   AVG
--------------                            ------   ----- ------   ----- ----  -----  -----  -----  -----  -----
LMDN5 RIO OJO CALIENTE AT LA MADERA       JUN-JUL    0.5 MAR-JUN     22   487.9    13     34     55     45
CMTN5 RIO CHAMA NR CHAMITA                JUN-JUL     26 MAR-MAY    208   66 92    172    266    347    312


***RUNOFF FORECAST VOLUMES AT OTWN5 AND SMFN5 REPRESENT THE TOTAL NATURAL VOLUME YIELDS. FORECASTS
   AT THESE LOCATIONS DO NOT ACCOUNT FOR THE IMPACTS OF REGULATION, STORAGE, DIVERSIONS
   AND/OR RETURNS.  PERCENT OF AVERAGE VALUES ARE NOT CALCULATED BECAUSE THE FORECAST VOLUME SHOULD
   NOT BE DIRECTLY COMPARED TO THE 30-YEAR AVERAGE OBSERVED VOLUME.

   THE JUN 1, 2021, RESIDUAL PERIOD RELEASE DISPLAYS VALUES FOR VOLUMES REMAINING FROM JUN 2021, TO END OF SEASON.


   5%, 25%, 50%, 75%  95% CHANCE THAT ACTUAL VOLUME WILL EXCEED FORECAST.
   AVERAGES ARE FOR THE 1981-2010 PERIOD.
   ALL VOLUMES ARE IN THOUSANDS OF ACRE-FEET.  MEDIAN VALUE ARE USED IN PLACE OF AVERAGE.

    ****************************************************************

   *        CONTACT DAVID.CAZIER@NOAA.GOV FOR QUESTIONS           *

   *        FOR BASIN SNOWPACK INFORMATION PLEASE REFER TO        *

   *       HTTP://WWW.WEATHER.GOV/WGRFC/WWGRF_SOIL_MOISTURE       *

   *     FOR USGS SURFACE-WATER DATA FOR COLORADO - REFER TO      *

   *       HTTPS://WATERDATA.USGS.GOV/CO/NWIS/SW                  *

   *    CURRENT CONDITIONS FOR NEW MEXICO RESERVOIRS - REFER TO   *

   *    HTTPS://WATERDATA.USGS.GOV/NM/NWIS/CURRENT?TYPE=LAKE      *

   *                                                              *

   ****************************************************************


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