Extended Streamflow Prediction
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4
000
FGUS65 KSTR 041849
ESPUT

COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE
SALT LAKE CITY UT
JAN 4,2019

            INTERNAL NWS PRODUCT FOR GUIDANCE PURPOSES ONLY

                     WATER SUPPLY INFORMATION FOR
                                 UTAH

                                 AS OF
                             JAN 1, 2019


PRECIPITATION AND SNOWPACK (% OF AVERAGE, ROUNDED):

SUBBASIN                 DEC PRECIP     OCT-DEC PREC     JAN 1 SNOWPACK
----------------------   ----------     ------------     -------------
BEAR                         55              90                85
WEBER                        55             105                85
SIX CREEKS (SLC)             65             100               100
PROVO                        50             110               100
SEVIER                       60             120                75
VIRGIN                       65             110                65
DUCHESNE                     50             110                95
PRICE/SAN RAFAEL             65             125               100



STREAMFLOW VOLUME FORECASTS:
Afos message output for EGDD: utesp.drv
Developed:                    Jan 1 2019

Great Salt Lake Basin
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
Bear River
  Utah-Wyoming State Line  Apr-Jul    100    89    141    116     84     60    112
  Woodruff Narrows Rsvr,   Apr-Jul     86    71    156    107     68     41    121
  Montpelier, nr, Stewart  Apr-Jul     85    47    215    127   42.0   17.0    182
Smiths Fork River
  Border, nr               Apr-Jul     72    81    103     90     55     45     89
Logan River
  Logan, nr, State Dam, a  Apr-Jul     86    77    136    106     66     53    111
Blacksmith Fork River
  Hyrum, nr, Upnl Dam, ab  Apr-Jul     31    72     58     37   24.0   19.8     43
Little Bear River
  Paradise                 Apr-Jul     22    47     52     34   13.7    9.9     47
Weber River
  Oakley, nr               Apr-Jul     95    81    139    108     68     50    118
  Rockport Res, Wanship,   Apr-Jul     94    71    157    114     64     42    132
  Coalville, nr            Apr-Jul     95    71    162    117     62     40    134
Chalk Ck
  Coalville                Apr-Jul     29    71     52     35   15.5   11.2     41
Weber River
  Echo Res, Echo, at       Apr-Jul    124    73    225    146     76     49    171
Lost Ck
  Lost Ck Res, Croydon, n  Apr-Jul    9.5    71   15.3   11.8    6.6    3.9   13.4
East Canyon Ck
  East Canyon Res, Morgan  Apr-Jul   19.0    70     35     27   12.8   10.3     27
SF Ogden River
  Huntsville, nr           Apr-Jul     44    79     78     54     29     21     56
Ogden River
  Pineview Res, Ogden, nr  Apr-Jul     82    73    152    120     47     30    113
Weber River
  Gateway                  Apr-Jul    220    68    415    315    121     87    325
Provo River
  Woodland, nr             Apr-Jul     82    82    123    100     68     48    100
  Hailstone, nr            Apr-Jul     90    82    134    107     71     50    110
  Deer Ck Res              Apr-Jul     95    75    163    123     75     52    127
American Fork River
  American Fork, nr, Up P  Apr-Jul   17.7    57     33     22   13.7   10.3     31
Spanish Fork River
  Castilla, nr             Apr-Jul     36    52     74     52   28.0   19.9     69
Jordan River
  Utah Lake, Provo, nr     Apr-Jul    198    61    380    285    144    102    325
Little Cottonwood Ck
  Salt Lake City, nr       Apr-Jul     28    74     43     35   25.0   19.8     38
Big Cottonwood Ck
  Salt Lake City, nr       Apr-Jul     27    75     44     33   21.0   16.3     36
City Ck
  Salt Lake City, nr       Apr-Jul    4.9    64    8.0    6.8    4.1    3.1    7.7
Emigration Ck
  Salt Lake City, nr       Apr-Jul   1.75    44    4.8    2.6   1.23   0.72    4.0
Mill Ck
  Salt Lake City, nr       Apr-Jul    3.5    55    6.2    4.6   2.50   1.72    6.4
Dell Fk River
  Little Dell Res          Apr-Jul    3.5    64    6.6    5.4   2.50   1.33    5.5
Lambs Ck
  Salt Lake City, nr       Apr-Jul    3.1    58    6.0    4.4   1.79   0.95    5.3
Parleys Ck
  Salt Lake City, nr       Apr-Jul    8.3    58   16.7   12.8    5.3    3.0   14.2
S Willow Ck
  Grantsville, nr          Apr-Jul   1.88    61    3.3    2.4   1.67   1.36    3.1
Red Butte Ck
  Ft Douglas, at, Salt La  Apr-Jul   1.00    53    2.2    1.6   0.67   0.41   1.90
West Canyon Ck
  Cedar Fort, nr           Apr-Jul   0.62    35    2.1    1.2   0.43   0.30   1.76

Sevier Basin
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
EF Sevier River
  Kingston, nr             Apr-Jul     27    77     35     31   24.0   19.1     35
Clear Ck
  Sevier, nr, Diversions,  Apr-Jul   19.6    93     32     23   16.6   12.3     21
Salina Ck
  Emery, nr                Apr-Jul    4.3    54   10.3    6.1   2.60   1.85    7.9
Sevier River
  Gunnison, nr             Apr-Jul     59    60    137     73     44     28     99
Beaver River
  Beaver, nr               Apr-Jul   19.1    73     38     23   16.6   11.7     26
Coal Ck
  Cedar City, nr           Apr-Jul   10.3    53     27     15    7.3    4.5   19.4

Eastern Utah - Green River Basin
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
Blacks Fork River
  Robertson, nr            Apr-Jul     72    81    107     84     61     40     89
Green River
  Flaming Gorge Res, Flam  Apr-Jul    630    64   1220    845    455    300    980
White River
  Watson, nr               Apr-Jul    235    84    315    265    180    142    280
Big Brush Ck
  Vernal, nr, Red Fleet R  Apr-Jul   12.5    60     21     15   10.8    7.5     21
Ashley Ck
  Vernal, nr               Apr-Jul     30    60     55     36   26.0   18.1     50
Whiterocks River
  Whiterocks, nr           Apr-Jul     32    59     60     41   27.0   18.4     54
Uinta River
  Neola, nr                Apr-Jul     54    73     86     68     41     27     74
Yellowstone River
  Altonah, nr              Apr-Jul     47    77     70     56     39     28     61
Lake Fork River
  Moon Lake Res, Mtn Home  Apr-Jul     51    77     79     65     43     34     66
Rock Ck
  Upper Stillwater Res     Apr-Jul     61    82     97     76     50     40     74
South Fork Rock Ck
  Docs Div, blo            Apr-Jul    5.5    75    9.9    6.9    4.3    3.1    7.3
Rock Ck
  Mountain Home, nr        Apr-Jul     71    81    117     91     58     46     88
West Fork Duchesne River
  Vat Diversion, blo       Apr-Jul   14.0    75     25     21   12.1    8.7   18.6
Duchesne River
  Tabiona, nr              Apr-Jul     85    79    120    103     68     51    108
  Duchesne, nr, Knight Di  Apr-Jul    154    79    235    188    125     96    194
Currant Ck
  Currant Ck Res           Apr-Jul   16.5    82     27     23   13.0    8.6     20
Strawberry River
  Solider Springs,nr - St  Apr-Jul     47    66     92     67     38     26     71
  Starvation Res, Duchesn  Apr-Jul     80    71    155    117     69     47    112
Duchesne River
  Myton                    Apr-Jul    225    68    415    305    168    104    330
  Randlett, nr             Apr-Jul    240    62    445    320    178    115    385
Fish Ck
  Scofield, nr, Reservoir  Apr-Jul     25    83     37     33   19.7   15.0     30
Price River
  Scofield Res, Scofield,  Apr-Jul     34    83     51     46   26.0   18.8     41
White River
  Blo Tabbyune Ck, Soldie  Apr-Jul   13.0    84     21     16    9.7    4.6   15.5
Green River
  Green River, Ut          Apr-Jul   2150    73   3500   2670   1530   1190   2960
Huntington Ck
  Electric Lake            Apr-Jul   11.0    83   19.0   15.7    6.9    5.0   13.3
  Power Plant, blo -Hunti  Apr-Jul     35    88     52     46     27     20     40
Seeley Ck
  Joes Vly Res, Orangevil  Apr-Jul     48    86     73     58     38     30     56
Ferron Ck
  Ferron, nr               Apr-Jul     34    89     51     41     27     20     38
Muddy Ck
  Emery, nr                Apr-Jul   14.0    70     26     20   12.7    9.0   19.9

Upper Colorado Basin - UC and Dolores
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
Dolores River
  Cisco, nr                Apr-Jul    330    58    575    410    250    175    565
Colorado River
  Cisco, nr                Apr-Jul   3300    74   5000   4000   2900   2400   4440
  Lake Powell, Glen Cyn D  Apr-Jul   4550    64   7600   5580   3450   2600   7160

San Juan Basin
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
San Juan River
  Bluff, nr                Apr-Jul    545    50    990    725    490    320   1100

lower colorado basin - virgin
                           Period     50%  %AVG    10%    30%    70%    90%    AVG
                           ------    ----  ----   ----   ----   ----   ----    ---
Santa Clara River
  Pine Valley, nr          Apr-Jul    2.8    56    8.1    3.5   2.20   1.46    5.0
Virgin River
  Virgin                   Apr-Jul     34    59     86     44   29.0   19.8     58
  Hurricane, nr            Apr-Jul     30    48     95     44   22.0    9.8     63
  Littlefield              Apr-Jul     30    46    100     47   20.0    9.4     65

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/bmb,an,pk



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