Extended Streamflow Prediction
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000
FGUS65 KSTR 041536
ESPUT

COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE
SALT LAKE CITY UT
FEB 4, 2015

            INTERNAL NWS PRODUCT FOR GUIDANCE PURPOSES ONLY

                     WATER SUPPLY INFORMATION FOR
                                 UTAH

                                 AS OF
                             FEB 1, 2015


PRECIPITATION AND SNOWPACK (% OF AVERAGE, ROUNDED):

SUBBASIN                 JAN PRECIP     OCT-JAN PREC     FEB 1 SNOWPACK
----------------------   ----------     ------------     -------------
BEAR                         55              85                75
WEBER                        40              65                75
SIX CREEKS (SLC)             55              70                70
PROVO                        50              70                75
SEVIER                       65              55                90
VIRGIN                       55              50                60
DUCHESNE                     45              60                80
PRICE/SAN RAFAEL             65              70               100



STREAMFLOW VOLUME FORECASTS:
Developed:                    Feb 1 2015

Great Salt Lake 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
Logan River
  Logan, nr, State Dam, abv       Apr-Jul     81    73    120     58    111
Blacksmith Fork River
  Hyrum, nr, Upnl Dam, abv        Apr-Jul     24    56     44   18.3     43
Little Bear River
  Paradise                        Apr-Jul     23    49     46   13.6     47
Weber River
  Oakley, nr                      Apr-Jul     87    74    124     60    118
  Rockport Res, Wanship, nr       Apr-Jul     91    69    142     56    132
  Coalville, nr                   Apr-Jul     88    66    142     54    134
  Echo Res, Echo, at              Apr-Jul    106    62    186     65    171
  Gateway                         Apr-Jul    189    58    355    116    325
Chalk Ck
  Coalville                       Apr-Jul     22    54     46   13.6     41
Weber River
  Coalville, nr                   Apr-Jul     88    66    142     54    134
Lost Ck
  Lost Ck Res, Croydon, nr        Apr-Jul    5.9    44   10.3    3.3   13.4
East Canyon Ck
  East Canyon Res, Morgan, nr     Apr-Jul   17.4    64     27   10.6     27
SF Ogden River
  Huntsville, nr                  Apr-Jul     34    61     63     22     56
Ogden River
  Pineview Res, Ogden, nr         Apr-Jul     62    55    128     33    113
Spanish Fork River
  Castilla, nr                    Apr-Jul     31    45     61     20     69
Provo River
  Woodland, nr                    Apr-Jul     82    82    115     58    100
  Hailstone, nr                   Apr-Jul     92    84    128     65    110
  Deer Ck Res                     Apr-Jul    101    80    144     67    127
American Fork River
  American Fork, nr, Up Pwrplnt,  Apr-Jul   16.2    52     27   11.0     31
  American Fork, nr, Up Pwrplnt,  Apr-Jul   16.2    52     27   11.0     31
Jordan River
  Utah Lake, Provo, nr            Apr-Jul    205    63    325    128    325
Little Cottonwood Ck
  Salt Lake City, nr              Apr-Jul     30    79     38     23     38
Big Cottonwood Ck
  Salt Lake City, nr              Apr-Jul     26    72     37   18.0     36
City Ck
  Salt Lake City, nr              Apr-Jul    4.1    53    6.8    2.9    7.7
Emigration Ck
  Salt Lake City, nr              Apr-Jul    2.0    50    4.0   1.09    4.0
Red Butte Ck
  Ft Douglas, at, Salt Lake City  Apr-Jul   0.82    43   1.65   0.41   1.90
Mill Ck
  Salt Lake City, nr              Apr-Jul    3.4    53    5.3   1.83    6.4
Dell Fk River
  Little Dell Res                 Apr-Jul    3.1    56    4.8   1.46    5.5
Lambs Ck
  Lambs Ck                        Apr-Jul    3.0    57    5.4   1.30    5.3
Parleys Ck
  Salt Lake City, nr              Apr-Jul    8.0    56   12.9    3.7   14.2
S Willow Ck
  Grantsville, nr                 Apr-Jul   1.86    60    2.9   1.25    3.1
West Canyon Ck
  Cedar Fort, nr                  Apr-Jul   0.78    44    2.1   0.29   1.76
Salt Ck
  Nephi Powerplant Div, blo       Apr-Jul    4.9    59   14.5    2.5    8.3

Sevier Basin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
EF Sevier River
  Kingston, nr                    Apr-Jul     33    94     39   19.6     35
Clear Ck
  Sevier, nr, Diversions, abv     Apr-Jul   12.7    60     22    9.2     21
Salina Ck
  Emery, nr                       Apr-Jul    6.8    86   14.1    3.2    7.9
Sevier River
  Gunnison, nr                    Apr-Jul     58    59    133     32     99
Beaver River
  Beaver, nr                      Apr-Jul   15.1    58     29    9.1     26
Coal Ck
  Cedar City, nr                  Apr-Jul   10.3    53     24    4.8   19.4

Eastern Utah - Green River Basin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
Blacks Fork River
  Robertson, nr                   Apr-Jul     66    74    103     44     89
Green River
  Flaming Gorge Res, Flaming Gor  Apr-Jul    875    89   1520    600    980
White River
  Watson, nr                      Apr-Jul    250    89    350    180    280
Big Brush Ck
  Vernal, nr, Red Fleet Res, abv  Apr-Jul   12.8    61     22    6.5     21
Ashley Ck
  Vernal, nr                      Apr-Jul     30    60     56   16.2     50
Whiterocks River
  Whiterocks, nr                  Apr-Jul     36    67     61     23     54
Uinta River
  Neola, nr                       Apr-Jul     55    74     83     32     74
Yellowstone River
  Altonah, nr                     Apr-Jul     51    84     71     39     61
Lake Fork River
  Moon Lake Res, Mtn Home, nr     Apr-Jul     53    80     77     38     66
Rock Ck
  Upper Stillwater Res            Apr-Jul     62    84     93     47     74
South Fork Rock Ck
  Docs Div, blo                   Apr-Jul    5.2    71    8.4    3.4    7.3
Rock Ck
  Mountain Home, nr               Apr-Jul     74    84    111     57     88
West Fork Duchesne River
  Vat Diversion, blo              Apr-Jul   12.4    67     20    7.5   18.6
Duchesne River
  Tabiona, nr                     Apr-Jul     83    77    115     60    108
  Duchesne, nr, Knight Div, abv   Apr-Jul    155    80    215    118    194
Currant Ck
  Currant Ck Res                  Apr-Jul   12.0    60     21    7.0     20
Strawberry River
  Solider Springs,nr - Strawberr  Apr-Jul     40    56     80     23     71
  Starvation Res, Duchesne, nr    Apr-Jul     72    64    128     43    112
Duchesne River
  Myton                           Apr-Jul    215    65    380    140    330
  Randlett, nr                    Apr-Jul    230    60    430    150    385
Fish Ck
  Scofield, nr, Reservoir, abv    Apr-Jul     21    70     35   14.3     30
Price River
  Scofield Res, Scofield, nr      Apr-Jul     28    68     48   18.0     41
White River
  Blo Tabbyune Ck, Soldier Summi  Apr-Jul   10.7    69   18.0    5.2   15.5
Green River
  Green River, Ut                 Apr-Jul   2270    77   3500   1600   2960
Huntington Ck
  Electric Lake                   Apr-Jul    9.0    68   16.0    4.5   13.3
  Power Plant, blo -Huntington,   Apr-Jul     28    70     47   19.0     40
Seeley Ck
  Joes Vly Res, Orangeville, nr   Apr-Jul     45    80     75     32     56
Ferron Ck
  Ferron, nr                      Apr-Jul     34    89     54     24     38
Muddy Ck
  Emery, nr                       Apr-Jul   18.0    90     28   12.4   19.9

Upper Colorado Basin - UC and Dolores
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
Dolores River
  Cisco, nr                       Apr-Jul    380    67    580    250    565
Colorado River
  Cisco, nr                       Apr-Jul   3700    83   5600   2650   4440
  Lake Powell, Glen Cyn Dam, at   Apr-Jul   5200    73   8350   3400   7160

San Juan Basin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
San Juan River
  Bluff, nr                       Apr-Jul    610    55   1000    380   1100

lower colorado basin - virgin
                                  Period      MP   MP%   RMAX   RMIN    AVG
                                  ------    ----   ---   ----   ----    ---
Santa Clara River
  Pine Valley, nr                 Apr-Jul    2.6    52    6.3   1.19    5.0
Virgin River
  Virgin                          Apr-Jul     32    55     60   19.1     58
  Hurricane, nr                   Apr-Jul     25    40     57    8.6     63
  Littlefield                     Apr-Jul     26    40     57    9.2     65

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/fml



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