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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.

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   *        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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