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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: FEBRUARY 1 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   15.7    10.8    145    23.5    14.1    167 
 Black Bear               8170   22.7    23.3     97    31.8    25.1    127 
 Blind Bull Sum           8650   22.6    13.8    164      -M    12.9       *
 Cottonwood Creek         7670   16.4    12.9    127    22.7    15.9    143 
 East Rim Divide          7930   11.2     6.8    165    13.4     7.7    174 
 Grand Targhee            9260   28.3    23.6    120    26.5    20.7    128 
 Granite Creek            6770   16.1    10.6    152    21.0    13.7    153 
 Grassy Lake              7265   23.8    20.3    117    35.2    24.1    146 
 Gros Ventre Summit       8750    9.7     8.4    115    14.1     8.3    170 
 Gunsight Pass            9820   10.5     8.3    127    14.5     8.9    163 
 Lewis Lake Divide        7850   20.3    20.0    102    31.9    23.3    137 
 Phillips Bench           8200   18.8    16.0    118    28.5    18.3    156 
 Salt River Summit        7760   12.5     7.8    160    17.9    10.7    167 
 Snake River Station      6920   14.3    10.9    131    23.3    15.6    149 
 Spring Creek Divide      9000   20.7    14.4    144    23.2    15.4    151 
 Thumb Divide             7980   10.6     9.6    110    15.9    12.2    130 
 Togwotee Pass            9580   18.5    15.0    123    22.3    15.9    140 
 Two Ocean Plateau        9240   24.1    17.6    137    24.3    17.4    140 
 Willow Creek             8380   20.0    17.1    117    31.1    21.7    143 
 Younts Peak              8350   12.9     9.6    134    17.0    10.5    162 
                                                -----                  -----
                Basin Index (%)                  126                    146 
 

MADISON-GALLATIN

 Black Bear               8170   22.7    23.3     97    31.8    25.1    127 
 Canyon                   7870   10.0     8.2    122    16.2    10.8    150 
 Madison Plateau          7750   13.9    14.1     99    22.9    17.4    132 
 West Yellowstone         6700    7.9     7.0    113    15.3     9.7    158 
 Whiskey Creek            6800    9.0     9.6     94    16.8    13.3    126 
                                                -----                  -----
                Basin Index (%)                  102                    135 
 

YELLOWSTONE

 Beartooth Lake           9360   16.7    13.9    120    12.9    12.9    100 
 Burnt Mtn                5880    5.0     2.4    208     9.1     7.8    117 
 Canyon                   7870   10.0     8.2    122    16.2    10.8    150 
 Cole Creek               7850    6.4     8.4     76     5.0     7.6     66 
 Evening Star             9200   19.8    16.4    121    25.7    18.0    143 
 Fisher Creek             9100   19.1    20.6     93    24.1    20.9    115 
 Northeast Entrance       7350    6.9     6.4    108    12.2     8.3    147 
 Parker Peak              9400   17.1    13.0    132    19.6    11.4    172 
 Sylvan Lake              8420   13.3    13.0    102    23.9    15.0    159 
 Thumb Divide             7980   10.6     9.6    110    15.9    12.2    130 
 Two Ocean Plateau        9240   24.1    17.6    137    24.3    17.4    140 
 White Mill               8700   15.9    14.6    109    18.8    15.5    121 
 Wolverine                7650     -M     7.1       *     -M     8.2       *
                                                -----                  -----
                Basin Index (%)                  114                    132 
 

WIND RIVER

 Burroughs Creek          8750   12.3      -M       *   15.2      -M       *
 Castle Creek             8400    7.0      -M       *    9.2      -M       *
 Cold Springs             9630    6.5     4.5    144     9.1     6.2    147 
 Deer Park                9700   17.9     9.4    190    21.5    12.3    175 
 Hobbs Park              10100   12.5     8.0    156    12.5     7.8    160 
 Kirwin                   9550   10.0     5.9    169    13.1     7.2    182 
 Little Warm              9370    6.9     6.4    108    11.9     8.2    145 
 Owl Creek                8975    4.0     3.1    129     5.6     3.6    156 
 South Pass               9040   17.1     8.9    192    16.5    11.0    150 
 St. Lawrence Alt         8620    3.7     4.2     88     7.7     5.3    145 
 Togwotee Pass            9580   18.5    15.0    123    22.3    15.9    140 
 Townsend Creek           8700    7.0     5.2    135    10.0     7.1    141 
                                                -----                  -----
                Basin Index (%)                  147                    154 
 

BIGHORN BASIN

 Bald Mtn.                9380   12.8    10.8    119    11.5    10.7    107 
 Bear Trap Meadow         8200    3.3     3.4     97     4.8     5.2     92 
 Bone Springs Div         9350   10.1     9.8    103    10.2     9.6    106 
 Grave Springs            8550    3.8     4.9     78     4.8     6.4     75 
 Kirwin                   9550   10.0     5.9    169    13.1     7.2    182 
 Marquette                8760    4.8      -M       *    8.2      -M       *
 Middle Powder            7760    4.6     6.3     73     5.0     7.4     68 
 Owl Creek                8975    4.0     3.1    129     5.6     3.6    156 
 Powder River Pass        9480    4.0     6.5     62     6.8     7.9     86 
 Shell Creek              9580   10.5     9.1    115     8.2     9.0     91 
 Timber Creek             7950    3.6     2.9    124     5.0     4.5    111 
                                                -----                  -----
                Basin Index (%)                  106                    105 
 

SHOSHONE RIVER

 Blackwater               9780   20.1    14.8    136    23.8    13.3    179 
 Evening Star             9200   19.8    16.4    121    25.7    18.0    143 
 Marquette                8760    4.8      -M       *    8.2      -M       *
 Sylvan Road              7120    9.6     7.8    123    19.8    11.9    166 
 Younts Peak              8350   12.9     9.6    134    17.0    10.5    162 
                                                -----                  -----
                Basin Index (%)                  128                    161 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.3     3.4     97     4.8     5.2     92 
 Cloud Peak Reservoir     9860    7.6     8.3     92     9.4     7.9    119 
 Grave Springs            8550    3.8     4.9     78     4.8     6.4     75 
 Hansen Sawmill           8360    5.1     4.0    128     6.9     5.1    135 
 Middle Powder            7760    4.6     6.3     73     5.0     7.4     68 
 Powder River Pass        9480    4.0     6.5     62     6.8     7.9     86 
 Soldier Park             8720    7.6      -M       *    6.9      -M       *
                                                -----                  -----
                Basin Index (%)                   85                     94 
 

TONGUE RIVER

 Big Goose                7990    5.5     4.9    112     6.5     6.5    100 
 Bone Springs Div         9350   10.1     9.8    103    10.2     9.6    106 
 Burgess Junction         7880    6.0     6.6     91     7.3     7.5     97 
 Dome Lake                8880    6.7     6.8     99     8.2     8.4     98 
 Little Goose             8870    6.0      -M       *    8.1      -M       *
 Sucker Creek             8880    6.9     7.1     97     7.0     8.7     80 
 Tie Creek                6870    4.0     3.4    118     7.2     7.1    101 
                                                -----                  -----
                Basin Index (%)                  102                     97 
 

BELLE FOURCHE

 Cole Canyon              5910    3.5     3.2    109     4.4     5.6     79 
                                                -----                  -----
                Basin Index (%)                  109                     79 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.4     4.6     96     5.5     7.7     71 
 North Rapid Creek        6130    4.5     4.3    105     4.8     6.2     77 
                                                -----                  -----
                Basin Index (%)                  100                     74 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   18.8    13.2    142    19.6    14.1    139 
 Blackhall Mtn            9820   25.3      -M       *   26.8      -M       *
 Columbine                9160   19.0    14.7    129    21.2    16.4    129 
 Divide Peak              8880   13.4    12.3    109    16.0    13.6    118 
 Joe Wright              10120   14.8    13.0    114    20.6    16.0    129 
 Laprele Creek            8375    7.2     5.4    133     7.0     7.5     93 
 Med Bow                 10500   26.4      -M       *   25.0      -M       *
 North French Creek      10130   16.9    16.0    106    18.4    16.8    110 
 Never Summer            10280   16.4    12.6    130    13.9      -M       *
 Old Battle              10000   25.1    19.1    131    26.6    22.4    119 
 Rawah                    9020   10.0     6.2    161    12.7     9.0    141 
 Sage Creek Basin         7850   11.3     8.4    135    11.7     9.8    119 
 Sand Lake               10050   19.5    16.5    118    18.8    15.1    125 
 South Brush Creek        8440    7.3     7.3    100     8.6     9.5     91 
 Tower                   10500   30.4    27.5    111    32.5    25.5    127 
 Webber Springs           9250   19.9    13.7    145    23.7    17.0    139 
 Willow Creek Pass        9540   13.2     7.6    174    14.1     8.3    170 
 Zirkel                   9340   27.6    18.5    149    29.8    19.0    157 
                                                -----                  -----
                Basin Index (%)                  128                    128 
 

SWEETWATER

 Deer Park                9700   17.9     9.4    190    21.5    12.3    175 
 Larsen Creek             9000   12.3     7.3    168    15.6      -M       *
 South Pass               9040   17.1     8.9    192    16.5    11.0    150 
                                                -----                  -----
                Basin Index (%)                  185                    163 
 

LOWER N. PLATTE

 Casper Mtn.              7900    6.7     7.5     89     6.9     9.0     77 
 Laprele Creek            8375    7.2     5.4    133     7.0     7.5     93 
 Reno Hill                8400    7.5     7.7     97     7.9     8.9     89 
 Windy Peak               7900    5.8     4.2    138     6.5     6.4    102 
                                                -----                  -----
                Basin Index (%)                  110                     89 
 

LARAMIE RIVER

 Brooklyn Lake           10240   16.3    12.0    136    15.1    12.9    117 
 Cinnabar Park            9574   13.3    13.2    101    16.0    15.8    101 
 Crow Creek               8330    4.0     5.7     70     6.0     6.4     94 
 Deadman Hill            10220   14.2    10.1    141    14.0    10.2    137 
 Rawah                    9020   10.0     6.2    161    12.7     9.0    141 
 Roach                    9700   12.4    10.0    124    14.7    11.8    125 
                                                -----                  -----
                Basin Index (%)                  123                    119 
 

S. PLATTE

 Black Mountain           8920    7.2      -M       *    8.4      -M       *
 Crow Creek               8330    4.0     5.7     70     6.0     6.4     94 
 Deadman Hill            10220   14.2    10.1    141    14.0    10.2    137 
                                                -----                  -----
                Basin Index (%)                  115                    120 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.7     7.1    123      -M     9.6       *
 Divide Peak              8880   13.4    12.3    109    16.0    13.6    118 
 Elk River                8700   15.7    11.2    140    15.7    12.8    123 
 Little Snake River       8915   22.8    15.5    147    28.5    20.6    138 
 Old Battle              10000   25.1    19.1    131    26.6    22.4    119 
 Sage Creek Basin         7850   11.3     8.4    135    11.7     9.8    119 
 Sandstone RS             8150   10.6     8.0    132    11.9    12.0     99 
 Whiskey Park             8950   20.0    16.0    125    22.4    17.9    125 
                                                -----                  -----
                Basin Index (%)                  131                    122 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   13.4     8.2    163    15.7     8.4    187 
 Blind Bull Sum           8650   22.6    13.8    164      -M    12.9       *
 East Rim Divide          7930   11.2     6.8    165    13.4     7.7    174 
 Elkhart Park G.S.        9400   10.1     7.5    135    15.4     8.5    181 
 Gros Ventre Summit       8750    9.7     8.4    115    14.1     8.3    170 
 Gunsight Pass            9820   10.5     8.3    127    14.5     8.9    163 
 Kendall R.S.             7740   12.7     7.8    163    17.0     9.3    183 
 Loomis Park              8240   15.4     9.5    162    20.3    11.3    180 
 New Fork Lake            8340   10.1     6.8    149    10.6     7.1    149 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   12.4     7.5    165    17.1     9.2    186 
 Spring Creek Divide      9000   20.7    14.4    144    23.2    15.4    151 
 Triple Peak              8500   22.2    13.3    167      -M    16.1       *
                                                -----                  -----
                Basin Index (%)                  152                    171 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.4      -M       *   10.4      -M       *
 Buck Pasture             9700   14.0      -M       *   16.4      -M       *
 EF Blacks Fork GS        9360    9.2      -M       *    9.6      -M       *
 Hams Fork                7840   11.4     7.1    161    13.4     7.3    184 
 Hewinta                  9519    8.8     5.7    154    11.1     8.6    129 
 Hickerson Park           9145    6.1     3.8    161     6.4     6.1    105 
 Hole-in-Rock             9150    5.1     4.0    128     6.9     5.7    121 
 Indian Creek             9425   21.6    14.6    148    16.5    14.0    118 
 Kelley R.S.              8180   15.4     9.0    171    20.6    11.6    178 
 Spirit Lk               10235    9.8      -M       *   11.5      -M       *
 Steel Creek Park        10200   12.0     8.7    138    13.5     9.9    136 
                                                -----                  -----
                Basin Index (%)                  152                    140 
 

UPPER BEAR RIVER

 Bear River RS            8777    9.8      -M       *   11.8      -M       *
 Bug Lake                 7950   21.5    10.7    201      -M    12.4       *
 Burts Miller Ranch       8000    5.6      -M       *    6.1      -M       *
 Chalk Creek #1           8993   21.9    13.4    163    23.4    15.7    149 
 Hayden Fork              9212   15.6     8.6    181    20.4    13.1    156 
 Kelley R.S.              8180   15.4     9.0    171    20.6    11.6    178 
 Lily Lake                9156   10.7     7.4    145    13.1    10.7    122 
 Monte Cristo             8960   22.0    16.0    138      -M    16.3       *
 Salt River Summit        7760   12.5     7.8    160    17.9    10.7    167 
                                                -----                  -----
                Basin Index (%)                  164                    154 

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


 -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.