Extended Streamflow Prediction
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000
FGUS65 KSTR 041833
ESPWY
COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH


                      WATER SUPPLY INFORMATION FOR
                            SOUTHWEST WYOMING
                                 AS OF
                              February 4, 2015


PRECIPITATION AND SNOWPACK (% OF AVERAGE):

SUBBASIN                    JAN      OCT-JAN     FEB 1       JAN
                          PRECIP     PRECIP      SNOW        FLOW
----------------------    ------     -------     -----     --------

GREEN ABV FLAMING GORGE      45         80        110         160
BEAR RIVER HEADWATERS        55         85         75          90

RESERVOIR STORAGE (KAF) AS OF January  31, 2015
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     DEC 31        Usable
                          Storage  Average  Capacity   Storage  Average  Avg Storage   Capacity
---------------------------------------------------------------------------------------------
   GREEN - FONTENELLE RE|    232.7|    155|     67| 162.7|    108|      150.1|344.8|
   BIG SANDY - BIG SANDY|     21.5|    130|     56|   9.2|     56|       16.6| 38.3|
   BLACKS FORK - MEEKS C|     22.6|    196|     76|  13.1|    114|       11.5| 29.9|
   EF SMITHS FORK - STAT|      8.5|    153|     62|   6.8|    122|        5.6| 13.9|
   GREEN - FLAMING GORGE|   3232.9|    106|     86|2847.2|     93|     3050.5|    3749.0|

STREAMFLOW FORECASTS:

Green River Basin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
Green River
  Daniel, nr, Warren Bridge, at   Apr-Jul    260   106    340    190    245
Pine Ck
  Fremont Lk, abv                 Apr-Jul     95    97    120     70     98
New Fork River
  Big Piney, nr                   Apr-Jul    320    90    470    205    355
Green River
  Fontenelle Res, Fontenelle nr   Apr-Jul    725   100   1060    520    725
Big Sandy River
  Farson, nr                      Apr-Jul     40    77     64     26     52
Green River
  Green River, Wy, nr             Apr-Jul    730   100   1100    510    730
EF Smiths Fork River
  Stateline Res, Robertson,nr     Apr-Jul     20    77     29   15.0     26
Blacks Fork River
  Robertson, nr                   Apr-Jul     66    74    103     44     89
Hams Fork River
  Frontier, nr, Pole Ck, blo      Apr-Jul     48    89     78     31     54
  Viva Naughton Res               Apr-Jul     65    88    120     45     74
Green River
  Flaming Gorge Res, Flaming Gor  Apr-Jul    875    89   1520    600    980
Little Snake River
  Slater, nr                      Apr-Jul    115    74    162     79    156
  Dixon, nr                       Apr-Jul    205    59    330    128    345

Bear River Basin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
Bear River
  Utah-Wyoming State Line, nr     Apr-Jul     95    85    130     68    112
  Woodruff Narrows Rsvr, abv      Apr-Jul     85    70    144     58    121
  Montpelier, nr, Stewart Dam, b  Apr-Jul     86    47    159     56    182
Smiths Fork River
  Border, nr                      Apr-Jul     89   100    118     71     89




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/Nielson,Miller




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