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Water Resources Data System
Dept 3943
1000 E. University Ave.
Laramie, WY 82071

wrds@uwyo.edu
Ph (307) 766-6651
Fax (307) 766-3785


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United States           Natural Resources             Water and Climate Center
Department of           Conservation                          Portland, Oregon
Agriculture             Service

          S N O W  -  P R E C I P I T A T I O N    U P D A T E

              Based on Mountain Data from NRCS SNOTEL Sites
                    As of WEDNESDAY: DECEMBER 31 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 Base Camp                7030    8.3     7.1    117     9.5     9.9     96
 Black Bear               8170   15.0    17.5     86    15.5    17.7     88
 Blind Bull Sum           8650   13.8     9.0    153     9.9     9.2    108
 Cottonwood Creek         7670   11.6     8.3    140    14.2    11.0    129
 East Rim Divide          7930    7.2     4.3    167     6.7     5.4    124
 Grand Targhee            9260   19.3    17.5    110    16.1    14.7    110
 Granite Creek            6770   10.5     6.4    164    11.1     9.3    119
 Grassy Lake              7265   13.6    12.5    109    14.1    16.8     84
 Gros Ventre Summit       8750    8.1     6.1    133     6.2     6.1    102
 Gunsight Pass            9820    6.9     6.0    115     6.9     6.4    108
 Lewis Lake Divide        7850   13.0    13.1     99    15.2    16.6     92
 Phillips Bench           8200   12.2    10.8    113    13.8    12.7    109
 Salt River Summit        7760    5.8     4.8    121     7.7     7.4    104
 Snake River Station      6920    9.2     6.2    148    11.1    10.9    102
 Spring Creek Divide      9000   13.9    10.0    139    13.8    10.7    129
 Thumb Divide             7980    5.9     6.1     97     7.1     8.7     82
 Togwotee Pass            9580   12.1    11.0    110    13.2    11.4    116
 Two Ocean Plateau        9240   14.1    12.4    114    12.2    12.5     98
 Willow Creek             8380   12.7    10.6    120    16.0    15.4    104
 Younts Peak              8350     -M     7.0       *     -M     7.6       *
                                                -----                  -----
                Basin Index (%)                  119                    104


MADISON-GALLATIN

 Black Bear               8170   15.0    17.5     86    15.5    17.7     88
 Canyon                   7870    6.6     5.3    125     7.2     7.8     92
 Madison Plateau          7750    9.5    10.2     93    10.2    12.2     84
 West Yellowstone         6700    4.0     4.6     87     5.8     7.0     83
 Whiskey Creek            6800    6.0     6.5     92     7.6     9.6     79
                                                -----                  -----
                Basin Index (%)                   93                     85


YELLOWSTONE

 Beartooth Lake           9360   11.4     9.9    115    10.7     9.1    118
 Burnt Mtn                5880    3.9     1.8    217     6.8     6.7    101
 Canyon                   7870    6.6     5.3    125     7.2     7.8     92
 Cole Creek               7850    6.3     6.3    100     4.8     6.3     76
 Evening Star             9200   13.4    11.2    120    14.6    13.1    111
 Fisher Creek             9100   15.6    14.5    108    14.4    14.8     97
 Northeast Entrance       7350    6.0     4.0    150     8.2     6.1    134
 Parker Peak              9400     -M     9.7       *   11.3     8.4    135
 Sylvan Lake              8420    8.4     9.1     92    10.3    11.1     93
 Thumb Divide             7980    5.9     6.1     97     7.1     8.7     82
 Two Ocean Plateau        9240   14.1    12.4    114    12.2    12.5     98
 White Mill               8700   12.9     9.8    132    12.0    11.2    107
 Wolverine                7650    7.8     4.7    166     7.4     6.2    119
                                                -----                  -----
                Basin Index (%)                  118                    104


WIND RIVER

 Burroughs Creek          8750    7.6     6.2    123     8.5     7.7    110
 Castle Creek             8400    4.8      -M       *    4.6      -M       *
 Cold Springs             9630    4.0     3.1    129      -M     4.9       *
 Deer Park                9700    5.9     6.6     89     7.4     8.7     85
 Hobbs Park              10100    5.2     6.5     80     5.6     6.1     92
 Kirwin                   9550    6.3     4.3    147     7.0     5.6    125
 Little Warm              9370    5.6     4.4    127     6.3     6.1    103
 Owl Creek                8975    2.5     2.5    100     4.2     2.9    145
 South Pass               9040    5.5     6.6     83     6.0     8.2     73
 St. Lawrence Alt         8620    1.8     3.0     60     3.2     4.3     74
 Togwotee Pass            9580   12.1    11.0    110    13.2    11.4    116
 Townsend Creek           8700    2.8     4.1     68     4.5     5.8     78
                                                -----                  -----
                Basin Index (%)                  102                     99


BIGHORN BASIN

 Bald Mtn.                9380    7.7     8.3     93     6.1     7.8     78
 Bear Trap Meadow         8200    3.5     2.5    140     3.6     4.2     86
 Bone Springs Div         9350    6.3     7.2     88     5.5     7.1     77
 Grave Springs            8550    3.4     3.3    103     3.5     5.1     69
 Kirwin                   9550    6.3     4.3    147     7.0     5.6    125
 Marquette                8760    3.1      -M       *    4.6      -M       *
 Middle Powder            7760    5.1     4.9    104      -M     6.0       *
 Owl Creek                8975    2.5     2.5    100     4.2     2.9    145
 Powder River Pass        9480    5.4     4.7    115     6.3     5.9    107
 Shell Creek              9580    5.6     7.2     78     5.9     6.5     91
 Timber Creek             7950    3.0     2.1    143     4.5     3.9    115
                                                -----                  -----
                Basin Index (%)                  104                     95


SHOSHONE RIVER

 Blackwater               9780   11.1    10.4    107    10.7     9.8    109
 Evening Star             9200   13.4    11.2    120    14.6    13.1    111
 Marquette                8760    3.1      -M       *    4.6      -M       *
 Sylvan Road              7120    6.4     5.3    121     8.9     8.9    100
 Younts Peak              8350     -M     7.0       *     -M     7.6       *
                                                -----                  -----
                Basin Index (%)                  115                    108


POWDER RIVER

 Bear Trap Meadow         8200    3.5     2.5    140     3.6     4.2     86
 Cloud Peak Reservoir     9860    6.2     6.2    100     6.2     6.2    100
 Grave Springs            8550    3.4     3.3    103     3.5     5.1     69
 Hansen Sawmill           8360    3.8     3.0    127     4.8     4.0    120
 Middle Powder            7760    5.1     4.9    104      -M     6.0       *
 Powder River Pass        9480    5.4     4.7    115     6.3     5.9    107
 Soldier Park             8720    3.1      -M       *    4.5      -M       *
                                                -----                  -----
                Basin Index (%)                  111                     96


TONGUE RIVER

 Big Goose                7990    3.8     3.6    106     4.5     5.3     85
 Bone Springs Div         9350    6.3     7.2     88     5.5     7.1     77
 Burgess Junction         7880    4.9     4.7    104     5.0     5.8     86
 Dome Lake                8880    3.4     5.4     63     5.6     6.7     84
 Little Goose             8870    4.2      -M       *    5.3      -M       *
 Sucker Creek             8880    5.3     5.1    104     5.9     6.7     88
 Tie Creek                6870    2.8     2.0    140     4.8     5.5     87
                                                -----                  -----
                Basin Index (%)                   95                     84


BELLE FOURCHE

 Cole Canyon              5910    1.9     2.2     86     4.4     4.6     96
                                                -----                  -----
                Basin Index (%)                   86                     96


CHEYENNE RIVER BASIN

 Blind Park               6890    2.7     3.2     84     4.7     6.0     78
 North Rapid Creek        6130    3.5     3.2    109     5.2     5.0    104
                                                -----                  -----
                Basin Index (%)                   97                     90


UPPER N. PLATTE

 Arapaho Ridge           10960    8.6     9.3     92    10.2    10.8     94
 Blackhall Mtn            9820   10.4      -M       *   13.6      -M       *
 Columbine                9160   10.0     8.7    115    11.7    11.4    103
 Divide Peak              8880    4.7     8.4     56     7.2    10.3     70
 Joe Wright              10120    8.4     9.4     89    14.0    12.0    117
 Laprele Creek            8375    3.0     3.9     77     3.7     5.9     63
 Med Bow                 10500   15.0      -M       *   14.6      -M       *
 North French Creek      10130   11.9    11.5    103    12.0    12.0    100
 Never Summer            10280    8.2     8.6     95     9.0      -M       *
 Old Battle              10000   11.8    12.4     95    12.1    16.2     75
 Rawah                    9020    6.1     4.3    142     8.8     7.3    121
 Sage Creek Basin         7850    4.1     5.7     72     4.3     7.4     58
 Sand Lake               10050   11.1    11.6     96    10.0    11.1     90
 South Brush Creek        8440    4.1     4.7     87     4.8     7.1     68
 Tower                   10500   17.1    18.5     92    18.1    18.2     99
 Webber Springs           9250    8.3     9.4     88     7.9    12.4     64
 Willow Creek Pass        9540    4.9     5.4     91     6.7     6.5    103
 Zirkel                   9340     -M     9.8       *     -M    13.5       *
                                                -----                  -----
                Basin Index (%)                   93                     88


SWEETWATER

 Deer Park                9700    5.9     6.6     89     7.4     8.7     85
 Larsen Creek             9000    3.9     4.8     81     5.7      -M       *
 South Pass               9040    5.5     6.6     83     6.0     8.2     73
                                                -----                  -----
                Basin Index (%)                   85                     79


LOWER N. PLATTE

 Casper Mtn.              7900     -M     5.8       *     -M     7.4       *
 Laprele Creek            8375    3.0     3.9     77     3.7     5.9     63
 Reno Hill                8400    4.1     5.7     72     5.6     7.0     80
 Windy Peak               7900    2.9     3.1     94     3.4     5.1     67
                                                -----                  -----
                Basin Index (%)                   79                     71


LARAMIE RIVER

 Brooklyn Lake           10240    9.1     7.8    117    10.2     9.2    111
 Cinnabar Park            9574    8.3     8.9     93    10.8    11.4     95
 Crow Creek               8330    3.8     4.4     86     5.0     5.4     93
 Deadman Hill            10220    7.1     7.2     99     8.0     7.7    104
 Rawah                    9020    6.1     4.3    142     8.8     7.3    121
 Roach                    9700    5.2     6.9     75     7.5     8.9     84
                                                -----                  -----
                Basin Index (%)                  100                    101


S. PLATTE

 Black Mountain           8920    4.6      -M       *    6.5      -M       *
 Crow Creek               8330    3.8     4.4     86     5.0     5.4     93
 Deadman Hill            10220    7.1     7.2     99     8.0     7.7    104
                                                -----                  -----
                Basin Index (%)                   94                     99


LITTLE SNAKE RIVER

 Battle Mountain          7440    4.2     4.0    105     5.9     6.9     86
 Divide Peak              8880    4.7     8.4     56     7.2    10.3     70
 Elk River                8700    7.1     6.6    108     8.0     9.0     89
 Little Snake River       8915   10.6     8.9    119    15.1    14.6    103
 Old Battle              10000   11.8    12.4     95    12.1    16.2     75
 Sage Creek Basin         7850    4.1     5.7     72     4.3     7.4     58
 Sandstone RS             8150    5.1     4.3    119     5.8     8.4     69
 Whiskey Park             8950   11.9     9.4    127    11.4    12.0     95
                                                -----                  -----
                Basin Index (%)                  100                     82


UPPER GREEN RIVER

 Big Sandy Opening        9080    5.8     5.8    100     5.9     6.2     95
 Blind Bull Sum           8650   13.8     9.0    153     9.9     9.2    108
 East Rim Divide          7930    7.2     4.3    167     6.7     5.4    124
 Elkhart Park G.S.        9400    6.2     5.7    109     7.1     6.3    113
 Gros Ventre Summit       8750    8.1     6.1    133     6.2     6.1    102
 Gunsight Pass            9820    6.9     6.0    115     6.9     6.4    108
 Kendall R.S.             7740    7.5     4.8    156     7.0     6.5    108
 Loomis Park              8240    9.3     6.5    143     9.7     8.0    121
 New Fork Lake            8340    6.4     4.5    142     6.5     5.1    127
 Pocket Creek             9360    5.5      -M       *    4.4      -M       *
 Snider Basin             8060    7.8     5.1    153     8.7     6.5    134
 Spring Creek Divide      9000   13.9    10.0    139    13.8    10.7    129
 Triple Peak              8500   14.1     8.2    172    15.1    10.9    139
                                                -----                  -----
                Basin Index (%)                  141                    119


LOWER GREEN RIVER

 Blacks Fork Jct          8870    2.4      -M       *    4.6      -M       *
 Buck Pasture             9700    5.5      -M       *    7.9      -M       *
 EF Blacks Fork GS        9360    3.5      -M       *    4.8      -M       *
 Hams Fork                7840    5.8     4.5    129     5.4     5.1    106
 Hewinta                  9519    2.8     3.7     76     5.4     6.4     84
 Hickerson Park           9145    3.4     2.8    121     3.6     4.9     73
 Hole-in-Rock             9150    2.4     2.9     83     3.8     4.6     83
 Indian Creek             9425   10.3    10.0    103    10.7     9.8    109
 Kelley R.S.              8180    7.2     6.1    118     7.3     8.3     88
 Spirit Lk               10235    4.1      -M       *    6.1      -M       *
 Steel Creek Park        10200    4.8     6.2     77     6.5     7.4     88
                                                -----                  -----
                Basin Index (%)                  101                     92


UPPER BEAR RIVER

 Bear River RS            8777    3.1      -M       *    3.8      -M       *
 Bug Lake                 7950    7.6     6.2    123     6.8     8.9     76
 Burts Miller Ranch       8000    2.0      -M       *    1.4      -M       *
 Chalk Creek #1           8993    7.5     9.6     78     8.2    11.4     72
 Hayden Fork              9212    5.1     5.8     88     8.0     9.5     84
 Kelley R.S.              8180    7.2     6.1    118     7.3     8.3     88
 Lily Lake                9156    4.1     5.1     80     5.4     7.9     68
 Monte Cristo             8960   10.7    10.0    107    10.3    11.6     89
 Salt River Summit        7760    5.8     4.8    121     7.7     7.4    104
                                                -----                  -----
                Basin Index (%)                  101                     83

-----------------------------------------------------------------------------


 -M   = Missing data
  *   = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and

Total Precipitation values

If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.

The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.

Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1981-2010.

Provisional data, subject to revision.

* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for  the year.


* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.

The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.