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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 1:53a, 5/26/18
Temperature 60.9°F
Wind 2.0 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: DECEMBER 17 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    8.8     5.6    157    16.1     8.2    196 
 Black Bear               8170   12.9    13.5     96    22.0    14.4    153 
 Blind Bull Sum           8650   12.1     7.4    164    13.2     7.7    171 
 Cottonwood Creek         7670    8.4     6.6    127    15.4     9.1    169 
 East Rim Divide          7930    4.7     3.2    147     8.0     4.5    178 
 Grand Targhee            9260   20.8    13.7    152    19.6    12.3    159 
 Granite Creek            6770    7.4     4.4    168    13.8     7.5    184 
 Grassy Lake              7265   12.3     9.5    129    24.0    13.5    178 
 Gros Ventre Summit       8750    5.2     4.7    111     9.4     5.1    184 
 Gunsight Pass            9820    5.6     4.2    133     9.9     5.2    190 
 Lewis Lake Divide        7850   10.6     9.7    109    21.6    13.6    159 
 Phillips Bench           8200    8.5     8.3    102    17.6    10.2    173 
 Salt River Summit        7760    4.6     3.4    135    10.3     6.0    172 
 Snake River Station      6920    8.4     4.9    171    17.0     9.0    189 
 Spring Creek Divide      9000   10.5     7.8    135    15.8     8.8    180 
 Thumb Divide             7980    5.3     4.5    118    11.4     7.2    158 
 Togwotee Pass            9580   11.6     9.1    127    15.2     9.5    160 
 Two Ocean Plateau        9240   16.1    10.6    152    17.7    10.6    167 
 Willow Creek             8380    9.7     8.3    117    20.4    12.8    159 
 Younts Peak              8350    6.3     5.5    115    10.5     6.4    164 
                                                -----                  -----
                Basin Index (%)                  131                    170 
 

MADISON-GALLATIN

 Black Bear               8170   12.9    13.5     96    22.0    14.4    153 
 Canyon                   7870    5.5     4.1    134    11.3     6.4    177 
 Madison Plateau          7750    6.9     7.9     87    16.6    10.0    166 
 West Yellowstone         6700    3.5     3.3    106    11.1     5.7    195 
 Whiskey Creek            6800    4.0     4.7     85    11.7     8.0    146 
                                                -----                  -----
                Basin Index (%)                   98                    163 
 

YELLOWSTONE

 Beartooth Lake           9360   10.2     7.9    129      -M     7.5       *
 Burnt Mtn                5880    3.1     1.6    194     6.7     6.1    110 
 Canyon                   7870    5.5     4.1    134    11.3     6.4    177 
 Cole Creek               7850    3.9     5.6     70     4.1     5.7     72 
 Evening Star             9200   12.0     9.0    133    17.9    10.9    164 
 Fisher Creek             9100   11.7    11.8     99    16.8    12.2    138 
 Northeast Entrance       7350    4.1     2.7    152     9.1     5.2    175 
 Parker Peak              9400   10.3     7.9    130    13.4     7.2    186 
 Sylvan Lake              8420    8.0     7.3    110    17.9     9.3    192 
 Thumb Divide             7980    5.3     4.5    118    11.4     7.2    158 
 Two Ocean Plateau        9240   16.1    10.6    152    17.7    10.6    167 
 White Mill               8700    9.8     8.0    122    13.1     9.3    141 
 Wolverine                7650    5.1     3.4    150     8.2     5.2    158 
                                                -----                  -----
                Basin Index (%)                  125                    155 
 

WIND RIVER

 Burroughs Creek          8750    6.8      -M       *    8.7      -M       *
 Castle Creek             8400    3.7      -M       *    5.6      -M       *
 Cold Springs             9630    3.2     2.7    119     5.4     4.4    123 
 Deer Park                9700     -M     5.0       *     -M     7.3       *
 Hobbs Park              10100    6.7     5.8    116     7.4     5.4    137 
 Kirwin                   9550    5.7     4.0    142     7.8     4.8    162 
 Little Warm              9370    3.0     3.7     81     7.6     5.2    146 
 Owl Creek                8975    2.0     2.2     91     3.4     2.6    131 
 South Pass               9040    7.4     5.3    140     8.0     7.1    113 
 St. Lawrence Alt         8620    1.3     2.6     50     4.9     3.8    129 
 Togwotee Pass            9580   11.6     9.1    127    15.2     9.5    160 
 Townsend Creek           8700    2.8     3.3     85     5.3     5.2    102 
                                                -----                  -----
                Basin Index (%)                  113                    135 
 

BIGHORN BASIN

 Bald Mtn.                9380    8.9     6.9    129     7.3     6.6    111 
 Bear Trap Meadow         8200     -M     2.1       *    2.8     3.7     76 
 Bone Springs Div         9350    6.2     6.2    100     6.8     6.0    113 
 Grave Springs            8550    2.1     2.5     84     3.5     4.3     81 
 Kirwin                   9550    5.7     4.0    142     7.8     4.8    162 
 Marquette                8760    3.7      -M       *    6.2      -M       *
 Middle Powder            7760    2.4     3.7     65     2.9     5.3     55 
 Owl Creek                8975    2.0     2.2     91     3.4     2.6    131 
 Powder River Pass        9480    1.5     3.7     41     3.9     5.0     78 
 Shell Creek              9580    6.6     6.0    110     5.5     5.6     98 
 Timber Creek             7950    2.4     1.9    126     3.9     3.6    108 
                                                -----                  -----
                Basin Index (%)                  102                    101 
 

SHOSHONE RIVER

 Blackwater               9780   13.8     8.8    157    16.6     8.5    195 
 Evening Star             9200   12.0     9.0    133    17.9    10.9    164 
 Marquette                8760    3.7      -M       *    6.2      -M       *
 Sylvan Road              7120    5.5     4.1    134    14.8     7.6    195 
 Younts Peak              8350    6.3     5.5    115    10.5     6.4    164 
                                                -----                  -----
                Basin Index (%)                  137                    179 
 

POWDER RIVER

 Bear Trap Meadow         8200     -M     2.1       *    2.8     3.7     76 
 Cloud Peak Reservoir     9860    3.2     4.9     65     5.1     5.5     93 
 Grave Springs            8550    2.1     2.5     84     3.5     4.3     81 
 Hansen Sawmill           8360    2.3     2.2    105     4.0     3.6    111 
 Middle Powder            7760    2.4     3.7     65     2.9     5.3     55 
 Powder River Pass        9480    1.5     3.7     41     3.9     5.0     78 
 Soldier Park             8720    1.9      -M       *    4.4      -M       *
                                                -----                  -----
                Basin Index (%)                   68                     81 
 

TONGUE RIVER

 Big Goose                7990    2.8     3.0     93     4.1     4.6     89 
 Bone Springs Div         9350    6.2     6.2    100     6.8     6.0    113 
 Burgess Junction         7880    3.3     3.8     87     4.6     5.0     92 
 Dome Lake                8880    2.9     4.4     66     5.7     5.9     97 
 Little Goose             8870    3.3      -M       *    4.9      -M       *
 Sucker Creek             8880    4.0     4.1     98     4.4     5.7     77 
 Tie Creek                6870    2.5     1.1    227     4.5     4.8     94 
                                                -----                  -----
                Basin Index (%)                   96                     94 
 

BELLE FOURCHE

 Cole Canyon              5910    2.0     1.0    200     3.1     4.1     76 
                                                -----                  -----
                Basin Index (%)                  200                     76 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    2.8     2.1    133     4.1     5.1     80 
 North Rapid Creek        6130    2.4     2.4    100     2.6     4.3     60 
                                                -----                  -----
                Basin Index (%)                  116                     71 
 

UPPER N. PLATTE

 Arapaho Ridge           10960    9.2     7.5    123    11.0     9.1    121 
 Blackhall Mtn            9820   10.8      -M       *   12.9      -M       *
 Columbine                9160    8.7     6.7    130    10.8     9.4    115 
 Divide Peak              8880    5.9     6.3     94     7.7     8.5     91 
 Joe Wright              10120    6.0     7.9     76    11.0    10.2    108 
 Laprele Creek            8375    3.2     3.0    107     3.5     5.0     70 
 Med Bow                 10500   13.5      -M       *   14.2      -M       *
 North French Creek      10130    8.5     9.4     90    10.4     9.9    105 
 Never Summer            10280    7.9     6.8    116     8.2      -M       *
 Old Battle              10000   10.2    10.3     99    11.2    13.3     84 
 Rawah                    9020    4.7     3.6    131     7.2     6.1    118 
 Sage Creek Basin         7850    3.9     4.1     95     5.4     5.8     93 
 Sand Lake               10050    9.4     9.3    101     9.0     9.3     97 
 South Brush Creek        8440    3.2     3.8     84     4.7     6.0     78 
 Tower                   10500   12.6    16.0     79    15.6    15.2    103 
 Webber Springs           9250    7.9     7.9    100    11.1    10.3    108 
 Willow Creek Pass        9540    6.5     4.5    144     7.5     5.5    136 
 Zirkel                   9340   10.2     7.5    136    13.9    11.1    125 
                                                -----                  -----
                Basin Index (%)                  103                    104 
 

SWEETWATER

 Deer Park                9700     -M     5.0       *     -M     7.3       *
 Larsen Creek             9000    5.6     3.7    151     9.9      -M       *
 South Pass               9040    7.4     5.3    140     8.0     7.1    113 
                                                -----                  -----
                Basin Index (%)                  144                    113*
 

LOWER N. PLATTE

 Casper Mtn.              7900    3.4     4.7     72     3.9     6.4     61 
 Laprele Creek            8375    3.2     3.0    107     3.5     5.0     70 
 Reno Hill                8400     -M     4.9       *     -M     6.1       *
 Windy Peak               7900    3.1     2.5    124     3.7     4.4     84 
                                                -----                  -----
                Basin Index (%)                   95                     70 
 

LARAMIE RIVER

 Brooklyn Lake           10240    6.9     6.5    106     7.1     7.6     93 
 Cinnabar Park            9574    6.2     7.4     84     8.9     9.2     97 
 Crow Creek               8330    2.2     3.6     61     3.6     4.4     82 
 Deadman Hill            10220    6.8     5.6    121     7.3     6.5    112 
 Rawah                    9020    4.7     3.6    131     7.2     6.1    118 
 Roach                    9700     -M     5.2       *     -M     7.3       *
                                                -----                  -----
                Basin Index (%)                  100                    101 
 

S. PLATTE

 Black Mountain           8920    3.5      -M       *    5.1      -M       *
 Crow Creek               8330    2.2     3.6     61     3.6     4.4     82 
 Deadman Hill            10220    6.8     5.6    121     7.3     6.5    112 
                                                -----                  -----
                Basin Index (%)                   98                    100 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.3     2.8    118     5.0     5.8     86 
 Divide Peak              8880    5.9     6.3     94     7.7     8.5     91 
 Elk River                8700    7.4     4.9    151     8.2     7.4    111 
 Little Snake River       8915     -M     6.0       *     -M    11.9       *
 Old Battle              10000   10.2    10.3     99    11.2    13.3     84 
 Sage Creek Basin         7850    3.9     4.1     95     5.4     5.8     93 
 Sandstone RS             8150    4.6     3.6    128     4.5     7.1     63 
 Whiskey Park             8950    8.3     7.5    111    11.4     9.8    116 
                                                -----                  -----
                Basin Index (%)                  110                     93 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    7.3     4.6    159    10.0     5.2    192 
 Blind Bull Sum           8650   12.1     7.4    164    13.2     7.7    171 
 East Rim Divide          7930    4.7     3.2    147     8.0     4.5    178 
 Elkhart Park G.S.        9400    4.4     4.3    102     9.8     5.3    185 
 Gros Ventre Summit       8750    5.2     4.7    111     9.4     5.1    184 
 Gunsight Pass            9820    5.6     4.2    133     9.9     5.2    190 
 Kendall R.S.             7740    6.6     3.6    183    10.7     5.3    202 
 Loomis Park              8240    7.6     4.8    158    12.9     6.5    198 
 New Fork Lake            8340    5.2     3.4    153     5.8     4.2    138 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    4.9     3.8    129    10.1     5.2    194 
 Spring Creek Divide      9000   10.5     7.8    135    15.8     8.8    180 
 Triple Peak              8500   12.2     6.6    185    17.0     9.0    189 
                                                -----                  -----
                Basin Index (%)                  148                    184 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    4.1      -M       *    5.8      -M       *
 Buck Pasture             9700    5.8      -M       *    8.4      -M       *
 EF Blacks Fork GS        9360    5.2      -M       *    5.8      -M       *
 Hams Fork                7840    4.4     3.4    129     8.1     4.3    188 
 Hewinta                  9519    4.0     2.8    143     6.3     5.7    111 
 Hickerson Park           9145    3.4     2.0    170     3.9     4.4     89 
 Hole-in-Rock             9150    2.2     2.3     96     4.2     4.1    102 
 Indian Creek             9425   10.0     7.9    127    13.8     7.9    175 
 Kelley R.S.              8180    7.1     4.5    158    12.6     6.8    185 
 Spirit Lk               10235    4.3      -M       *    6.7      -M       *
 Steel Creek Park        10200    5.8     5.4    107     7.7     6.5    118 
                                                -----                  -----
                Basin Index (%)                  130                    143 
 

UPPER BEAR RIVER

 Bear River RS            8777    4.1      -M       *    6.0      -M       *
 Bug Lake                 7950    9.2     5.2    177    10.4     7.4    141 
 Burts Miller Ranch       8000    2.4      -M       *    3.3      -M       *
 Chalk Creek #1           8993    9.7     8.3    117    11.8     9.8    120 
 Hayden Fork              9212    7.0     4.2    167    10.7     8.0    134 
 Kelley R.S.              8180    7.1     4.5    158    12.6     6.8    185 
 Lily Lake                9156    4.5     4.3    105     6.7     6.9     97 
 Monte Cristo             8960    9.3     8.0    116    12.1     9.7    125 
 Salt River Summit        7760    4.6     3.4    135    10.3     6.0    172 
                                                -----                  -----
                Basin Index (%)                  136                    137 

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


 -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.