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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

At 5:47a, 8/21/18
Temperature 55.1°F
Wind 0.0 mph


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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 SATURDAY: JANUARY 21 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   15.4    10.0    154    23.2    12.6    184 
 Black Bear               8170   21.7    21.8    100    30.8    22.4    138 
 Blind Bull Sum           8650   21.5    12.7    169      -M    11.7       *
 Cottonwood Creek         7670   14.9    11.2    133    21.1    14.4    147 
 East Rim Divide          7930   10.2     6.1    167    12.5     7.0    179 
 Grand Targhee            9260   27.4    21.5    127    25.6    18.5    138 
 Granite Creek            6770   15.0     9.2    163    20.7    12.2    170 
 Grassy Lake              7265   22.5    17.5    129    33.8    21.5    157 
 Gros Ventre Summit       8750    9.3     7.7    121    13.6     7.5    181 
 Gunsight Pass            9820   10.1     7.7    131    14.0     8.1    173 
 Lewis Lake Divide        7850   19.4    17.4    111    31.1    21.0    148 
 Phillips Bench           8200   17.5    15.6    112    26.5    16.4    162 
 Salt River Summit        7760   11.2     6.9    162    16.5     9.7    170 
 Snake River Station      6920   13.9     9.4    148    23.0    13.9    165 
 Spring Creek Divide      9000   19.3    12.6    153    22.6    14.0    161 
 Thumb Divide             7980   10.1     8.4    120    15.6    11.0    142 
 Togwotee Pass            9580   17.6    13.2    133    21.3    14.5    147 
 Two Ocean Plateau        9240   23.3    15.8    147    23.7    15.8    150 
 Willow Creek             8380   18.5    15.2    122    29.3    19.6    149 
 Younts Peak              8350   12.1     8.8    138    16.5     9.6    172 
                                                -----                  -----
                Basin Index (%)                  133                    156 
 

MADISON-GALLATIN

 Black Bear               8170   21.7    21.8    100    30.8    22.4    138 
 Canyon                   7870    9.2     7.5    123    15.4     9.7    159 
 Madison Plateau          7750   13.0    13.2     98    22.2    15.7    141 
 West Yellowstone         6700    7.5     6.6    114    14.9     8.7    171 
 Whiskey Creek            6800    8.4     8.8     95    16.3    12.1    135 
                                                -----                  -----
                Basin Index (%)                  103                    145 
 

YELLOWSTONE

 Beartooth Lake           9360   15.2    12.8    119    11.5    11.6     99 
 Burnt Mtn                5880    4.5     2.3    196     8.4     7.5    112 
 Canyon                   7870    9.2     7.5    123    15.4     9.7    159 
 Cole Creek               7850    6.1     7.5     81     5.2     7.2     72 
 Evening Star             9200   18.3    14.4    127    24.6    16.4    150 
 Fisher Creek             9100   17.9    19.2     93    23.1    18.8    123 
 Northeast Entrance       7350    6.5     5.7    114    11.6     7.6    153 
 Parker Peak              9400   16.0    12.0    133    18.8    10.5    179 
 Sylvan Lake              8420   12.6    11.6    109    23.0    13.6    169 
 Thumb Divide             7980   10.1     8.4    120    15.6    11.0    142 
 Two Ocean Plateau        9240   23.3    15.8    147    23.7    15.8    150 
 White Mill               8700   14.9    13.4    111    17.9    14.0    128 
 Wolverine                7650     -M     6.3       *     -M     7.6       *
                                                -----                  -----
                Basin Index (%)                  118                    138 
 

WIND RIVER

 Burroughs Creek          8750   11.7      -M       *   14.5      -M       *
 Castle Creek             8400    6.6      -M       *    8.7      -M       *
 Cold Springs             9630    5.9     4.2    140     8.4     5.8    145 
 Deer Park                9700   17.2     7.9    218    20.8    11.4    182 
 Hobbs Park              10100   11.9     7.5    159    11.8     7.2    164 
 Kirwin                   9550    9.4     5.3    177    12.4     6.8    182 
 Little Warm              9370    6.4     5.8    110    11.5     7.5    153 
 Owl Creek                8975    3.5     3.0    117     5.1     3.3    155 
 South Pass               9040   16.4     8.1    202    16.1    10.1    159 
 St. Lawrence Alt         8620    3.0     3.7     81     7.1     5.0    142 
 Togwotee Pass            9580   17.6    13.2    133    21.3    14.5    147 
 Townsend Creek           8700    6.3     4.6    137     9.2     6.7    137 
                                                -----                  -----
                Basin Index (%)                  154                    158 
 

BIGHORN BASIN

 Bald Mtn.                9380   11.9    10.1    118    10.5     9.8    107 
 Bear Trap Meadow         8200    2.8     3.1     90     4.4     4.9     90 
 Bone Springs Div         9350    9.2     9.1    101     9.7     8.8    110 
 Grave Springs            8550    3.4     4.6     74     4.4     6.0     73 
 Kirwin                   9550    9.4     5.3    177    12.4     6.8    182 
 Marquette                8760    4.4      -M       *    7.8      -M       *
 Middle Powder            7760    4.3     6.1     70     4.9     6.9     71 
 Owl Creek                8975    3.5     3.0    117     5.1     3.3    155 
 Powder River Pass        9480    3.6     5.9     61     6.5     7.2     90 
 Shell Creek              9580    9.8     8.6    114     8.0     8.0    100 
 Timber Creek             7950    3.3     2.8    118     4.7     4.3    109 
                                                -----                  -----
                Basin Index (%)                  104                    107 
 

SHOSHONE RIVER

 Blackwater               9780   19.0    13.1    145    22.8    12.2    187 
 Evening Star             9200   18.3    14.4    127    24.6    16.4    150 
 Marquette                8760    4.4      -M       *    7.8      -M       *
 Sylvan Road              7120    9.2     7.2    128    19.3    11.0    175 
 Younts Peak              8350   12.1     8.8    138    16.5     9.6    172 
                                                -----                  -----
                Basin Index (%)                  135                    169 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.8     3.1     90     4.4     4.9     90 
 Cloud Peak Reservoir     9860    6.8     7.6     89     8.7     7.4    118 
 Grave Springs            8550    3.4     4.6     74     4.4     6.0     73 
 Hansen Sawmill           8360    4.5     3.7    122     6.3     4.7    134 
 Middle Powder            7760    4.3     6.1     70     4.9     6.9     71 
 Powder River Pass        9480    3.6     5.9     61     6.5     7.2     90 
 Soldier Park             8720    7.2      -M       *    6.5      -M       *
                                                -----                  -----
                Basin Index (%)                   82                     95 
 

TONGUE RIVER

 Big Goose                7990    5.1     4.4    116     6.1     6.0    102 
 Bone Springs Div         9350    9.2     9.1    101     9.7     8.8    110 
 Burgess Junction         7880    5.3     6.2     85     6.5     7.0     93 
 Dome Lake                8880    6.2     6.4     97     7.7     7.8     99 
 Little Goose             8870    5.5      -M       *    7.7      -M       *
 Sucker Creek             8880    6.2     6.6     94     6.6     8.0     82 
 Tie Creek                6870    3.7     3.1    119     6.7     6.7    100 
                                                -----                  -----
                Basin Index (%)                  100                     98 
 

BELLE FOURCHE

 Cole Canyon              5910    3.2     3.0    107     4.2     5.3     79 
                                                -----                  -----
                Basin Index (%)                  107                     79 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.8     4.1     93     4.9     7.2     68 
 North Rapid Creek        6130    4.0     3.8    105     4.3     5.8     74 
                                                -----                  -----
                Basin Index (%)                   99                     71 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   17.9    11.3    158    18.7    13.0    144 
 Blackhall Mtn            9820   23.5      -M       *   24.6      -M       *
 Columbine                9160   17.9    13.0    138    19.7    14.7    134 
 Divide Peak              8880   12.2    11.1    110    14.6    12.5    117 
 Joe Wright              10120   13.9    12.0    116    19.4    14.7    132 
 Laprele Creek            8375    6.5     5.2    125     6.2     7.0     89 
 Med Bow                 10500   24.6      -M       *   23.6      -M       *
 North French Creek      10130   15.6    14.5    108    17.2    15.3    112 
 Never Summer            10280     -M    11.0       *     -M      -M       *
 Old Battle              10000   22.9    16.5    139    24.8    20.4    122 
 Rawah                    9020    9.4     5.7    165    11.9     8.6    138 
 Sage Creek Basin         7850    9.9     7.5    132    10.3     8.8    117 
 Sand Lake               10050   18.2    15.0    121    17.6    13.8    128 
 South Brush Creek        8440    6.6     6.5    102     7.8     8.7     90 
 Tower                   10500   28.2    24.2    117    30.6    23.2    132 
 Webber Springs           9250   18.1    12.3    147    22.0    15.5    142 
 Willow Creek Pass        9540   12.6     6.6    191    13.3     7.6    175 
 Zirkel                   9340   25.8    16.3    158    26.5    16.9    157 
                                                -----                  -----
                Basin Index (%)                  133                    130 
 

SWEETWATER

 Deer Park                9700   17.2     7.9    218    20.8    11.4    182 
 Larsen Creek             9000   11.5     6.4    180    14.9      -M       *
 South Pass               9040   16.4     8.1    202    16.1    10.1    159 
                                                -----                  -----
                Basin Index (%)                  201                    172 
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.9     6.9     86     6.2     8.4     74 
 Laprele Creek            8375    6.5     5.2    125     6.2     7.0     89 
 Reno Hill                8400     -M     7.0       *     -M     8.3       *
 Windy Peak               7900    5.1     3.8    134     5.8     5.9     98 
                                                -----                  -----
                Basin Index (%)                  110                     85 
 

LARAMIE RIVER

 Brooklyn Lake           10240   15.2    11.2    136    14.1    11.7    121 
 Cinnabar Park            9574   12.6    11.9    106    15.4    14.5    106 
 Crow Creek               8330    4.0     5.4     74     5.7     6.1     93 
 Deadman Hill            10220   13.6     8.7    156    13.5     9.4    144 
 Rawah                    9020    9.4     5.7    165    11.9     8.6    138 
 Roach                    9700   11.7     9.2    127    13.9    10.8    129 
                                                -----                  -----
                Basin Index (%)                  128                    122 
 

S. PLATTE

 Black Mountain           8920    7.0      -M       *    8.2      -M       *
 Crow Creek               8330    4.0     5.4     74     5.7     6.1     93 
 Deadman Hill            10220   13.6     8.7    156    13.5     9.4    144 
                                                -----                  -----
                Basin Index (%)                  125                    124 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.1     6.1    133    10.7     8.9    120 
 Divide Peak              8880   12.2    11.1    110    14.6    12.5    117 
 Elk River                8700   14.9     9.8    152    14.8    11.6    128 
 Little Snake River       8915   20.9    12.9    162    26.3    18.7    141 
 Old Battle              10000   22.9    16.5    139    24.8    20.4    122 
 Sage Creek Basin         7850    9.9     7.5    132    10.3     8.8    117 
 Sandstone RS             8150   10.0     7.2    139    10.8    10.9     99 
 Whiskey Park             8950   18.3    14.7    124    20.9    16.0    131 
                                                -----                  -----
                Basin Index (%)                  137                    124 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   12.4     7.1    175    14.8     7.7    192 
 Blind Bull Sum           8650   21.5    12.7    169      -M    11.7       *
 East Rim Divide          7930   10.2     6.1    167    12.5     7.0    179 
 Elkhart Park G.S.        9400    9.2     6.9    133    14.5     7.8    186 
 Gros Ventre Summit       8750    9.3     7.7    121    13.6     7.5    181 
 Gunsight Pass            9820   10.1     7.7    131    14.0     8.1    173 
 Kendall R.S.             7740   11.8     6.8    174    16.1     8.4    192 
 Loomis Park              8240   14.2     8.5    167    19.3    10.2    189 
 New Fork Lake            8340    9.4     6.2    152     9.8     6.4    153 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   11.4     6.6    173    16.1     8.4    192 
 Spring Creek Divide      9000   19.3    12.6    153    22.6    14.0    161 
 Triple Peak              8500   20.9    11.7    179    23.1    14.4    160 
                                                -----                  -----
                Basin Index (%)                  159                    177 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    7.8      -M       *   10.0      -M       *
 Buck Pasture             9700   12.1      -M       *   14.7      -M       *
 EF Blacks Fork GS        9360    8.6      -M       *    9.3      -M       *
 Hams Fork                7840   10.3     6.3    163    12.3     6.7    184 
 Hewinta                  9519    8.2     5.1    161    10.5     7.9    133 
 Hickerson Park           9145    5.7     3.3    173     6.0     5.7    105 
 Hole-in-Rock             9150    4.7     3.7    127     6.6     5.4    122 
 Indian Creek             9425   20.0    13.3    150      -M    12.7       *
 Kelley R.S.              8180   13.9     7.9    176    19.1    10.5    182 
 Spirit Lk               10235    8.6      -M       *   10.2      -M       *
 Steel Creek Park        10200   11.0     7.6    145    12.7     9.0    141 
                                                -----                  -----
                Basin Index (%)                  156                    149 
 

UPPER BEAR RIVER

 Bear River RS            8777    8.9      -M       *   10.9      -M       *
 Bug Lake                 7950     -M     9.1       *     -M    11.3       *
 Burts Miller Ranch       8000    5.0      -M       *    5.5      -M       *
 Chalk Creek #1           8993   19.8    12.0    165      -M    14.2       *
 Hayden Fork              9212   13.9     7.7    181    18.4    12.0    153 
 Kelley R.S.              8180   13.9     7.9    176    19.1    10.5    182 
 Lily Lake                9156   10.4     6.7    155    12.1     9.8    123 
 Monte Cristo             8960   19.1    14.0    136      -M    14.8       *
 Salt River Summit        7760   11.2     6.9    162    16.5     9.7    170 
                                                -----                  -----
                Basin Index (%)                  160                    157*

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


 -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.