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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 5:18p, 5/27/18
Temperature 57.7°F
Wind 5.0 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 THURSDAY: DECEMBER 15 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    6.4     5.4    119    13.8     8.1    170 
 Black Bear               8170   10.1    13.0     78    19.9    14.1    141 
 Blind Bull Sum           8650    9.6     7.0    137    11.3     7.5    151 
 Cottonwood Creek         7670    7.2     6.4    112    14.1     8.9    158 
 East Rim Divide          7930    3.9     3.0    130     7.3     4.4    166 
 Grand Targhee            9260   20.1    12.8    157    19.2    12.0    160 
 Granite Creek            6770    5.7     4.2    136    12.1     7.3    166 
 Grassy Lake              7265    9.0     9.2     98    20.9    13.1    160 
 Gros Ventre Summit       8750    4.1     4.6     89     8.5     5.0    170 
 Gunsight Pass            9820    4.3     4.2    102     8.8     5.1    173 
 Lewis Lake Divide        7850    7.3     9.5     77    19.0    13.2    144 
 Phillips Bench           8200    6.8     7.9     86    16.1    10.0    161 
 Salt River Summit        7760    3.3     3.2    103     9.1     5.8    157 
 Snake River Station      6920    6.3     4.6    137    15.0     8.8    170 
 Spring Creek Divide      9000    8.8     7.3    121    14.3     8.6    166 
 Thumb Divide             7980    3.5     4.3     81     9.7     7.0    139 
 Togwotee Pass            9580    9.6     8.8    109    13.3     9.3    143 
 Two Ocean Plateau        9240   13.1    10.4    126    15.2    10.4    146 
 Willow Creek             8380    8.0     8.0    100    18.7    12.5    150 
 Younts Peak              8350    4.2     5.3     79     9.0     6.2    145 
                                                -----                  -----
                Basin Index (%)                  109                    155 
 

MADISON-GALLATIN

 Black Bear               8170   10.1    13.0     78    19.9    14.1    141 
 Canyon                   7870    3.5     3.8     92     9.5     6.2    153 
 Madison Plateau          7750    4.8     7.5     64    15.1     9.7    156 
 West Yellowstone         6700    2.5     3.0     83     9.8     5.5    178 
 Whiskey Creek            6800    2.5     4.4     57    10.1     7.8    129 
                                                -----                  -----
                Basin Index (%)                   74                    149 
 

YELLOWSTONE

 Beartooth Lake           9360    7.8     7.6    103     5.7     7.2     79 
 Burnt Mtn                5880    2.3     1.6    144     6.0     5.9    102 
 Canyon                   7870    3.5     3.8     92     9.5     6.2    153 
 Cole Creek               7850    4.0     5.5     73     4.0     5.6     71 
 Evening Star             9200     -M     8.8       *     -M    10.6       *
 Fisher Creek             9100    9.4    11.3     83    15.0    12.0    125 
 Northeast Entrance       7350    2.6     2.6    100     8.0     5.0    160 
 Parker Peak              9400    8.9     7.6    117    11.9     7.0    170 
 Sylvan Lake              8420    6.2     6.9     90    16.3     9.1    179 
 Thumb Divide             7980    3.5     4.3     81     9.7     7.0    139 
 Two Ocean Plateau        9240   13.1    10.4    126    15.2    10.4    146 
 White Mill               8700    7.1     7.6     93    10.9     9.1    120 
 Wolverine                7650    4.1     3.3    124     7.9     5.1    155 
                                                -----                  -----
                Basin Index (%)                  100                    134 
 

WIND RIVER

 Burroughs Creek          8750    5.0      -M       *    7.3      -M       *
 Castle Creek             8400    2.4      -M       *    4.7      -M       *
 Cold Springs             9630    2.7     2.6    104     5.0     4.3    116 
 Deer Park                9700    5.1     5.0    102     8.9     7.1    125 
 Hobbs Park              10100    5.4     5.8     93     6.7     5.3    126 
 Kirwin                   9550    4.2     3.9    108     6.8     4.8    142 
 Little Warm              9370    2.5     3.6     69     7.0     5.2    135 
 Owl Creek                8975    1.6     2.1     76     3.1     2.5    124 
 South Pass               9040    5.0     5.2     96     5.8     7.0     83 
 St. Lawrence Alt         8620    1.4     2.6     54     4.5     3.8    118 
 Togwotee Pass            9580    9.6     8.8    109    13.3     9.3    143 
 Townsend Creek           8700     -M     3.2       *     -M     5.1       *
                                                -----                  -----
                Basin Index (%)                   95                    124 
 

BIGHORN BASIN

 Bald Mtn.                9380    8.3     6.7    124     7.0     6.4    109 
 Bear Trap Meadow         8200    1.1     2.0     55     3.0     3.7     81 
 Bone Springs Div         9350    5.4     6.1     89     6.4     5.8    110 
 Grave Springs            8550    1.9     2.4     79     3.4     4.2     81 
 Kirwin                   9550    4.2     3.9    108     6.8     4.8    142 
 Marquette                8760    3.3      -M       *    5.4      -M       *
 Middle Powder            7760    2.5     3.6     69     3.2     5.2     62 
 Owl Creek                8975    1.6     2.1     76     3.1     2.5    124 
 Powder River Pass        9480    1.2     3.7     32     4.0     4.9     82 
 Shell Creek              9580    6.5     5.8    112     5.6     5.5    102 
 Timber Creek             7950    2.1     2.0    105     3.5     3.5    100 
                                                -----                  -----
                Basin Index (%)                   91                     99 
 

SHOSHONE RIVER

 Blackwater               9780   11.7     8.4    139    15.0     8.3    181 
 Evening Star             9200     -M     8.8       *     -M    10.6       *
 Marquette                8760    3.3      -M       *    5.4      -M       *
 Sylvan Road              7120    3.8     3.9     97    13.0     7.4    176 
 Younts Peak              8350    4.2     5.3     79     9.0     6.2    145 
                                                -----                  -----
                Basin Index (%)                  112                    169 
 

POWDER RIVER

 Bear Trap Meadow         8200    1.1     2.0     55     3.0     3.7     81 
 Cloud Peak Reservoir     9860    2.7     4.8     56     5.0     5.4     93 
 Grave Springs            8550    1.9     2.4     79     3.4     4.2     81 
 Hansen Sawmill           8360    1.7     2.1     81     3.3     3.5     94 
 Middle Powder            7760    2.5     3.6     69     3.2     5.2     62 
 Powder River Pass        9480    1.2     3.7     32     4.0     4.9     82 
 Soldier Park             8720    1.7      -M       *    3.9      -M       *
                                                -----                  -----
                Basin Index (%)                   60                     81 
 

TONGUE RIVER

 Big Goose                7990    2.5     3.0     83     3.7     4.6     80 
 Bone Springs Div         9350    5.4     6.1     89     6.4     5.8    110 
 Burgess Junction         7880    2.7     3.7     73     4.4     4.9     90 
 Dome Lake                8880    2.4     4.3     56     5.1     5.8     88 
 Little Goose             8870    2.8      -M       *    4.8      -M       *
 Sucker Creek             8880    3.5     4.0     88     4.3     5.6     77 
 Tie Creek                6870    2.1     1.1    191     5.0     4.7    106 
                                                -----                  -----
                Basin Index (%)                   84                     92 
 

BELLE FOURCHE

 Cole Canyon              5910    1.7     1.1    155     2.8     4.0     70 
                                                -----                  -----
                Basin Index (%)                  155                     70 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    2.4     2.0    120     3.7     5.0     74 
 North Rapid Creek        6130    2.1     2.3     91     2.3     4.2     55 
                                                -----                  -----
                Basin Index (%)                  105                     65 
 

UPPER N. PLATTE

 Arapaho Ridge           10960    7.5     7.3    103     9.4     8.9    106 
 Blackhall Mtn            9820    8.5      -M       *   10.8      -M       *
 Columbine                9160    7.3     6.3    116     9.8     9.1    108 
 Divide Peak              8880    4.6     6.1     75     7.1     8.3     86 
 Joe Wright              10120    5.2     7.6     68    10.0     9.9    101 
 Laprele Creek            8375    2.3     2.9     79     2.7     4.9     55 
 Med Bow                 10500   12.1      -M       *   13.0      -M       *
 North French Creek      10130    7.3     9.1     80     9.2     9.6     96 
 Never Summer            10280    6.1     6.5     94     6.9      -M       *
 Old Battle              10000    7.4     9.8     76     8.5    12.9     66 
 Rawah                    9020    3.9     3.4    115     6.4     6.0    107 
 Sage Creek Basin         7850    3.2     4.0     80     4.6     5.7     81 
 Sand Lake               10050    8.2     9.0     91     8.3     9.1     91 
 South Brush Creek        8440    2.6     3.6     72     4.2     5.9     71 
 Tower                   10500   10.2    15.2     67    12.9    14.9     87 
 Webber Springs           9250    5.2     7.5     69     8.8     9.8     90 
 Willow Creek Pass        9540    4.7     4.3    109     5.8     5.4    107 
 Zirkel                   9340    8.5     7.1    120    12.4    10.9    114 
                                                -----                  -----
                Basin Index (%)                   86                     91 
 

SWEETWATER

 Deer Park                9700    5.1     5.0    102     8.9     7.1    125 
 Larsen Creek             9000    3.6     3.6    100     8.0      -M       *
 South Pass               9040    5.0     5.2     96     5.8     7.0     83 
                                                -----                  -----
                Basin Index (%)                   99                    104 
 

LOWER N. PLATTE

 Casper Mtn.              7900    2.7     4.5     60     3.6     6.3     57 
 Laprele Creek            8375    2.3     2.9     79     2.7     4.9     55 
 Reno Hill                8400     -M     4.8       *     -M     6.0       *
 Windy Peak               7900    2.0     2.3     87     2.7     4.3     63 
                                                -----                  -----
                Basin Index (%)                   72                     58 
 

LARAMIE RIVER

 Brooklyn Lake           10240    5.5     6.2     89     6.1     7.4     82 
 Cinnabar Park            9574    5.3     7.2     74     8.0     9.0     89 
 Crow Creek               8330    1.9     3.5     54     3.3     4.4     75 
 Deadman Hill            10220    6.1     5.5    111     6.6     6.4    103 
 Rawah                    9020    3.9     3.4    115     6.4     6.0    107 
 Roach                    9700     -M     5.0       *     -M     7.2       *
                                                -----                  -----
                Basin Index (%)                   88                     92 
 

S. PLATTE

 Black Mountain           8920    3.2      -M       *    4.8      -M       *
 Crow Creek               8330    1.9     3.5     54     3.3     4.4     75 
 Deadman Hill            10220    6.1     5.5    111     6.6     6.4    103 
                                                -----                  -----
                Basin Index (%)                   89                     92 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.0     2.6    115     5.7     5.7    100 
 Divide Peak              8880    4.6     6.1     75     7.1     8.3     86 
 Elk River                8700    4.8     4.6    104     6.5     7.2     90 
 Little Snake River       8915    6.7     5.6    120    11.3    11.6     97 
 Old Battle              10000    7.4     9.8     76     8.5    12.9     66 
 Sage Creek Basin         7850    3.2     4.0     80     4.6     5.7     81 
 Sandstone RS             8150    3.4     3.4    100     3.7     6.9     54 
 Whiskey Park             8950    6.8     7.2     94    10.0     9.6    104 
                                                -----                  -----
                Basin Index (%)                   92                     85 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    5.6     4.5    124     8.4     5.1    165 
 Blind Bull Sum           8650    9.6     7.0    137    11.3     7.5    151 
 East Rim Divide          7930    3.9     3.0    130     7.3     4.4    166 
 Elkhart Park G.S.        9400    4.0     4.2     95     9.2     5.1    180 
 Gros Ventre Summit       8750    4.1     4.6     89     8.5     5.0    170 
 Gunsight Pass            9820    4.3     4.2    102     8.8     5.1    173 
 Kendall R.S.             7740     -M     3.5       *     -M     5.2       *
 Loomis Park              8240    5.6     4.5    124    10.9     6.3    173 
 New Fork Lake            8340    4.6     3.2    144     5.4     4.2    129 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    4.1     3.6    114     9.4     5.1    184 
 Spring Creek Divide      9000    8.8     7.3    121    14.3     8.6    166 
 Triple Peak              8500   10.2     6.3    162    15.1     8.8    172 
                                                -----                  -----
                Basin Index (%)                  124                    167 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    3.7      -M       *    5.1      -M       *
 Buck Pasture             9700    5.1      -M       *    7.4      -M       *
 EF Blacks Fork GS        9360    3.6      -M       *    5.1      -M       *
 Hams Fork                7840    3.6     3.2    112     7.5     4.2    179 
 Hewinta                  9519    3.3     2.7    122     5.7     5.5    104 
 Hickerson Park           9145     -M     2.0       *     -M     4.3       *
 Hole-in-Rock             9150    2.0     2.2     91     4.0     4.0    100 
 Indian Creek             9425    8.3     7.6    109    11.9     7.7    155 
 Kelley R.S.              8180    5.6     4.3    130    11.1     6.6    168 
 Spirit Lk               10235    3.8      -M       *    6.2      -M       *
 Steel Creek Park        10200    5.2     5.2    100     7.0     6.3    111 
                                                -----                  -----
                Basin Index (%)                  111                    138 
 

UPPER BEAR RIVER

 Bear River RS            8777    3.3      -M       *    5.2      -M       *
 Bug Lake                 7950    7.1     5.0    142     8.9     7.3    122 
 Burts Miller Ranch       8000    1.8      -M       *    3.0      -M       *
 Chalk Creek #1           8993    7.6     8.0     95     9.8     9.6    102 
 Hayden Fork              9212    5.5     4.0    138     9.3     7.8    119 
 Kelley R.S.              8180    5.6     4.3    130    11.1     6.6    168 
 Lily Lake                9156    3.7     4.1     90     6.0     6.7     90 
 Monte Cristo             8960    7.0     7.6     92    10.7     9.4    114 
 Salt River Summit        7760    3.3     3.2    103     9.1     5.8    157 
                                                -----                  -----
                Basin Index (%)                  110                    122 

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


 -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.