Extended Streamflow Prediction
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5
000
FGUS65 KSTR 032116
ESPWY
COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH


                      WATER SUPPLY INFORMATION FOR
                            SOUTHWEST WYOMING
                                 AS OF
                            May 3, 2017


PRECIPITATION AND SNOWPACK (% OF AVERAGE):

SUBBASIN                    APR      OCT-APR     MAY 1       APR
                          PRECIP     PRECIP      SNOW        FLOW
----------------------    ------     -------     -----     --------
GREEN ABV FLAMING GORGE     120        165        190         265
BEAR RIVER HEADWATERS       150        170        180         220

RESERVOIR STORAGE (KAF) AS OF APRIL 30, 2017
Figures are in 1000 Acre Feet
                            C U R R E N T   Y R         L A S T   Y R    1981-2010
                          EOM      % of     % of       EOM      % of     APR 30        Usable
                          Storage  Average  Capacity   Storage  Average  Avg Storage   Capacity
------------------------------------------------------------------------------------------------
  GREEN - FONTENELLE RE|    127.8|    102|     37|173.5|    139|      125.0|     344.8|
  BIG SANDY - BIG SANDY|     28.7|    135|     75| 24.8|    117|       21.3|38.3|
  BLACKS FORK - MEEKS C|     24.7|    150|     83| 14.3|     87|       16.5|29.9|
  EF SMITHS FORK - STAT|      9.6|    148|     69|  7.7|    119|        6.5|13.9|
  GREEN - FLAMING GORGE|   3084.4|    101|     82|     3213.5|    106|     3040.4|    3749.0|


STREAMFLOW FORECASTS:

GREEN RIVER BASIN
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
Green River
  Daniel, nr, Warren Brid  Apr-Jul    430   176    470    455    415    395    245
  Daniel, nr, Warren Brid  May-Jul    405   180    445    430    390    370    225
Pine Ck
  Fremont Lk, abv          Apr-Jul    148   151    165    154    140    133     98
  Fremont Lk, abv          May-Jul    145   151    162    151    137    130     96
New Fork River
  Big Piney, nr            Apr-Jul    690   194    785    725    660    605    355
  Big Piney, nr            May-Jul    625   189    720    660    595    540    330
Green River
  Fontenelle Res, Fontene  Apr-Jul   1680   232   1840   1730   1570   1460    725
  Fontenelle Res, Fontene  May-Jul   1450   227   1610   1500   1340   1230    640
Big Sandy River
  Farson, nr               Apr-Jul     86   165    102     90     79     71     52
  Farson, nr               May-Jul     82   171     98     86     75     67     48
Green River
  Green River, Wy, nr      Apr-Jul   1730   237   1900   1790   1600   1480    730
  Green River, Wy, nr      May-Jul   1490   233   1660   1550   1360   1240    640
EF Smiths Fork River
  Stateline Res, Robertso  Apr-Jul     37   142     45     40     33     31     26
  Stateline Res, Robertso  May-Jul     34   131     42     37     30     28     26
Blacks Fork River
  Robertson, nr            Apr-Jul    122   137    142    133    113    104     89
  Robertson, nr            May-Jul    112   132    132    123    103     94     85
Hams Fork River
  Frontier, nr, Pole Ck,   Apr-Jul    113   209    131    123    107    100     54
  Frontier, nr, Pole Ck,   May-Jul     96   200    114    106     90     83     48
  Viva Naughton Res        Apr-Jul    171   231    200    185    158    148     74
  Viva Naughton Res        May-Jul    134   216    164    148    121    111     62
Green River
  Flaming Gorge Res, Flam  Apr-Jul   2260   231   2490   2400   2110   1950    980
  Flaming Gorge Res, Flam  May-Jul   1910   226   2140   2050   1760   1600    845
Little Snake River
  Slater, nr               Apr-Jul    151    97    189    161    134    119    156
  Slater, nr               May-Jul    122    88    160    132    105     90    138
  Dixon, nr                Apr-Jul    305    88    385    325    265    235    345
  Dixon, nr                May-Jul    245    83    325    265    205    175    295

BEAR RIVER BASIN
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
Bear River
  Utah-Wyoming State Line  Apr-Jul    180   161    198    189    173    167    112
  Utah-Wyoming State Line  May-Jul    167   161    185    176    160    154    104
  Woodruff Narrows Rsvr,   Apr-Jul    205   169    235    215    192    175    121
  Woodruff Narrows Rsvr,   May-Jul    172   164    200    181    157    140    105
  Montpelier, nr, Stewart  Apr-Jul    600   330    665    625    580    550    182
  Montpelier, nr, Stewart  May-Jul    420   290    485    445    400    370    145
Smiths Fork River
  Border, nr               Apr-Jul    171   192    187    181    162    155     89
  Border, nr               May-Jul    144   180    160    154    135    128     80


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/Nielson,Bernard




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