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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 11:08p, 11/13/18
Temperature 27.0°F
Wind 1.0 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 TUESDAY: DECEMBER 20 , 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     5.8    152    16.1     8.5    189 
 Black Bear               8170   13.2    14.2     93    22.6    15.1    150 
 Blind Bull Sum           8650   12.1     7.8    155    13.8     7.9    175 
 Cottonwood Creek         7670    8.5     7.0    121    15.5     9.5    163 
 East Rim Divide          7930    4.8     3.5    137     8.1     4.6    176 
 Grand Targhee            9260   20.8    14.3    145    20.3    12.7    160 
 Granite Creek            6770    7.4     4.7    157    13.7     7.8    176 
 Grassy Lake              7265   12.5    10.0    125    24.2    13.9    174 
 Gros Ventre Summit       8750    5.2     4.8    108     9.6     5.3    181 
 Gunsight Pass            9820    5.8     4.4    132    10.3     5.4    191 
 Lewis Lake Divide        7850   10.7    10.2    105    22.4    14.0    160 
 Phillips Bench           8200    8.5     8.7     98    17.7    10.6    167 
 Salt River Summit        7760    4.5     3.7    122    10.4     6.2    168 
 Snake River Station      6920    8.4     5.2    162    17.0     9.4    181 
 Spring Creek Divide      9000   10.7     8.1    132    16.0     9.2    174 
 Thumb Divide             7980    5.5     5.0    110    11.6     7.4    157 
 Togwotee Pass            9580   11.8     9.4    126    15.4     9.9    156 
 Two Ocean Plateau        9240     -M    10.8       *     -M    10.9       *
 Willow Creek             8380   10.0     8.8    114    20.4    13.2    155 
 Younts Peak              8350    6.6     5.7    116    11.4     6.6    173 
                                                -----                  -----
                Basin Index (%)                  124                    167 
 

MADISON-GALLATIN

 Black Bear               8170   13.2    14.2     93    22.6    15.1    150 
 Canyon                   7870    5.5     4.3    128    11.7     6.6    177 
 Madison Plateau          7750    7.1     8.5     84    17.2    10.3    167 
 West Yellowstone         6700    3.9     3.6    108    11.2     5.9    190 
 Whiskey Creek            6800    4.3     5.2     83    12.1     8.3    146 
                                                -----                  -----
                Basin Index (%)                   95                    162 
 

YELLOWSTONE

 Beartooth Lake           9360   10.7     8.4    127     5.7     7.7     74 
 Burnt Mtn                5880    3.1     1.7    182     6.9     6.2    111 
 Canyon                   7870    5.5     4.3    128    11.7     6.6    177 
 Cole Creek               7850    4.6     5.6     82     4.6     5.9     78 
 Evening Star             9200   12.5     9.4    133    18.4    11.3    163 
 Fisher Creek             9100   12.1    12.6     96    17.5    12.7    138 
 Northeast Entrance       7350    4.1     2.8    146     9.4     5.3    177 
 Parker Peak              9400   11.1     8.3    134    14.1     7.5    188 
 Sylvan Lake              8420    8.1     7.7    105    18.2     9.6    190 
 Thumb Divide             7980    5.5     5.0    110    11.6     7.4    157 
 Two Ocean Plateau        9240     -M    10.8       *     -M    10.9       *
 White Mill               8700   10.1     8.5    119    13.6     9.6    142 
 Wolverine                7650    5.1     3.6    142     8.8     5.4    163 
                                                -----                  -----
                Basin Index (%)                  119                    148 
 

WIND RIVER

 Burroughs Creek          8750    6.8      -M       *    9.4      -M       *
 Castle Creek             8400    3.9      -M       *    6.0      -M       *
 Cold Springs             9630    3.6     2.8    129     6.1     4.5    136 
 Deer Park                9700    7.8     5.2    150    11.7     7.4    158 
 Hobbs Park              10100    7.1     5.9    120     8.2     5.5    149 
 Kirwin                   9550    5.9     4.1    144     8.7     5.0    174 
 Little Warm              9370    3.5     3.8     92     8.2     5.4    152 
 Owl Creek                8975    2.2     2.3     96     3.7     2.6    142 
 South Pass               9040    7.6     5.5    138     8.4     7.2    117 
 St. Lawrence Alt         8620    1.9     2.5     76     5.3     3.9    136 
 Togwotee Pass            9580   11.8     9.4    126    15.4     9.9    156 
 Townsend Creek           8700    3.3     3.3    100     6.2     5.2    119 
                                                -----                  -----
                Basin Index (%)                  122                    145 
 

BIGHORN BASIN

 Bald Mtn.                9380    9.2     7.1    130     8.1     6.8    119 
 Bear Trap Meadow         8200    1.5     2.2     68     3.4     3.8     89 
 Bone Springs Div         9350    6.3     6.4     98     7.3     6.2    118 
 Grave Springs            8550    2.3     2.7     85     3.9     4.4     89 
 Kirwin                   9550    5.9     4.1    144     8.7     5.0    174 
 Marquette                8760    3.5      -M       *    6.5      -M       *
 Middle Powder            7760    2.8     4.0     70     3.7     5.5     67 
 Owl Creek                8975    2.2     2.3     96     3.7     2.6    142 
 Powder River Pass        9480    1.6     3.9     41     4.5     5.1     88 
 Shell Creek              9580    6.9     6.3    110     6.0     5.8    103 
 Timber Creek             7950    2.6     1.9    137     4.0     3.6    111 
                                                -----                  -----
                Basin Index (%)                  101                    109 
 

SHOSHONE RIVER

 Blackwater               9780   14.0     9.2    152    17.2     8.8    195 
 Evening Star             9200   12.5     9.4    133    18.4    11.3    163 
 Marquette                8760    3.5      -M       *    6.5      -M       *
 Sylvan Road              7120    5.6     4.3    130    15.2     7.9    192 
 Younts Peak              8350    6.6     5.7    116    11.4     6.6    173 
                                                -----                  -----
                Basin Index (%)                  135                    180 
 

POWDER RIVER

 Bear Trap Meadow         8200    1.5     2.2     68     3.4     3.8     89 
 Cloud Peak Reservoir     9860    3.6     5.1     71     5.9     5.6    105 
 Grave Springs            8550    2.3     2.7     85     3.9     4.4     89 
 Hansen Sawmill           8360    2.6     2.4    108     4.2     3.7    114 
 Middle Powder            7760    2.8     4.0     70     3.7     5.5     67 
 Powder River Pass        9480    1.6     3.9     41     4.5     5.1     88 
 Soldier Park             8720    2.7      -M       *    4.8      -M       *
                                                -----                  -----
                Basin Index (%)                   71                     91 
 

TONGUE RIVER

 Big Goose                7990    3.3     3.1    106     4.5     4.8     94 
 Bone Springs Div         9350    6.3     6.4     98     7.3     6.2    118 
 Burgess Junction         7880    3.4     4.0     85     5.1     5.2     98 
 Dome Lake                8880    3.4     4.6     74     5.9     6.1     97 
 Little Goose             8870    3.6      -M       *    5.6      -M       *
 Sucker Creek             8880    4.2     4.2    100     5.1     6.0     85 
 Tie Creek                6870    2.7     1.2    225     5.6     4.9    114 
                                                -----                  -----
                Basin Index (%)                   99                    101 
 

BELLE FOURCHE

 Cole Canyon              5910    2.1     1.0    210     3.4     4.2     81 
                                                -----                  -----
                Basin Index (%)                  210                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.0     2.3    130     4.2     5.2     81 
 North Rapid Creek        6130    2.8     2.5    112     3.1     4.4     70 
                                                -----                  -----
                Basin Index (%)                  121                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960    9.3     8.0    116    11.2     9.4    119 
 Blackhall Mtn            9820   10.8      -M       *   13.0      -M       *
 Columbine                9160    8.6     7.3    118    10.9     9.9    110 
 Divide Peak              8880    5.8     6.8     85     8.1     8.9     91 
 Joe Wright              10120    6.4     8.3     77    11.3    10.6    107 
 Laprele Creek            8375    3.7     3.2    116     4.0     5.2     77 
 Med Bow                 10500   13.6      -M       *   14.2      -M       *
 North French Creek      10130    8.3    10.0     83    10.3    10.4     99 
 Never Summer            10280    7.9     7.2    110     8.3      -M       *
 Old Battle              10000   10.1    10.9     93    11.3    14.0     81 
 Rawah                    9020    4.7     3.7    127     7.3     6.4    114 
 Sage Creek Basin         7850    4.1     4.4     93     5.6     6.1     92 
 Sand Lake               10050    9.4     9.7     97     9.5     9.8     97 
 South Brush Creek        8440    3.0     4.1     73     4.6     6.3     73 
 Tower                   10500   12.7    17.1     74    15.8    16.0     99 
 Webber Springs           9250    7.7     8.2     94    11.3    10.7    106 
 Willow Creek Pass        9540    6.5     4.8    135     7.5     5.7    132 
 Zirkel                   9340   10.4     7.8    133    14.1    11.8    119 
                                                -----                  -----
                Basin Index (%)                   98                    101 
 

SWEETWATER

 Deer Park                9700    7.8     5.2    150    11.7     7.4    158 
 Larsen Creek             9000    5.9     4.0    148    10.0      -M       *
 South Pass               9040    7.6     5.5    138     8.4     7.2    117 
                                                -----                  -----
                Basin Index (%)                  145                    138 
 

LOWER N. PLATTE

 Casper Mtn.              7900    3.8     5.0     76     4.6     6.6     70 
 Laprele Creek            8375    3.7     3.2    116     4.0     5.2     77 
 Reno Hill                8400     -M     5.1       *     -M     6.3       *
 Windy Peak               7900    3.2     2.7    119     4.1     4.6     89 
                                                -----                  -----
                Basin Index (%)                   98                     77 
 

LARAMIE RIVER

 Brooklyn Lake           10240    6.9     6.9    100     7.4     7.9     94 
 Cinnabar Park            9574    6.4     7.5     85     9.0     9.8     92 
 Crow Creek               8330    2.2     3.8     58     3.7     4.6     80 
 Deadman Hill            10220    6.9     6.1    113     7.4     6.7    110 
 Rawah                    9020    4.7     3.7    127     7.3     6.4    114 
 Roach                    9700    4.9     5.6     88     6.6     7.7     86 
                                                -----                  -----
                Basin Index (%)                   95                     96 
 

S. PLATTE

 Black Mountain           8920    3.6      -M       *    5.2      -M       *
 Crow Creek               8330    2.2     3.8     58     3.7     4.6     80 
 Deadman Hill            10220    6.9     6.1    113     7.4     6.7    110 
                                                -----                  -----
                Basin Index (%)                   92                     98 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.2     3.1    103     6.2     6.1    102 
 Divide Peak              8880    5.8     6.8     85     8.1     8.9     91 
 Elk River                8700    7.2     5.3    136     8.3     7.7    108 
 Little Snake River       8915    9.9     6.6    150    14.8    12.6    117 
 Old Battle              10000   10.1    10.9     93    11.3    14.0     81 
 Sage Creek Basin         7850    4.1     4.4     93     5.6     6.1     92 
 Sandstone RS             8150    4.5     3.8    118     5.3     7.4     72 
 Whiskey Park             8950    8.0     8.0    100    11.4    10.3    111 
                                                -----                  -----
                Basin Index (%)                  108                     97 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    7.3     4.7    155    10.1     5.3    191 
 Blind Bull Sum           8650   12.1     7.8    155    13.8     7.9    175 
 East Rim Divide          7930    4.8     3.5    137     8.1     4.6    176 
 Elkhart Park G.S.        9400    4.5     4.5    100     9.9     5.4    183 
 Gros Ventre Summit       8750    5.2     4.8    108     9.6     5.3    181 
 Gunsight Pass            9820    5.8     4.4    132    10.3     5.4    191 
 Kendall R.S.             7740    6.6     3.9    169    10.8     5.4    200 
 Loomis Park              8240    7.7     5.1    151    12.9     6.7    193 
 New Fork Lake            8340    5.2     3.5    149     6.3     4.4    143 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    5.0     4.2    119    10.4     5.5    189 
 Spring Creek Divide      9000   10.7     8.1    132    16.0     9.2    174 
 Triple Peak              8500   12.3     7.1    173    17.2     9.3    185 
                                                -----                  -----
                Basin Index (%)                  142                    182 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    4.1      -M       *    5.8      -M       *
 Buck Pasture             9700    5.8      -M       *    8.5      -M       *
 EF Blacks Fork GS        9360    5.3      -M       *    5.9      -M       *
 Hams Fork                7840    4.4     3.5    126     8.1     4.4    184 
 Hewinta                  9519    4.0     3.1    129     6.4     5.8    110 
 Hickerson Park           9145    3.4     2.1    162     3.9     4.5     87 
 Hole-in-Rock             9150    2.3     2.4     96     4.3     4.2    102 
 Indian Creek             9425   10.1     8.5    119    14.2     8.3    171 
 Kelley R.S.              8180    7.1     4.8    148    12.7     7.0    181 
 Spirit Lk               10235    4.3      -M       *    6.8      -M       *
 Steel Creek Park        10200    5.9     5.5    107     7.8     6.6    118 
                                                -----                  -----
                Basin Index (%)                  124                    141 
 

UPPER BEAR RIVER

 Bear River RS            8777    4.0      -M       *    6.1      -M       *
 Bug Lake                 7950    9.0     5.4    167    10.4     7.7    135 
 Burts Miller Ranch       8000    2.3      -M       *    3.4      -M       *
 Chalk Creek #1           8993    9.7     8.8    110    11.9    10.1    118 
 Hayden Fork              9212    6.9     4.5    153    10.9     8.2    133 
 Kelley R.S.              8180    7.1     4.8    148    12.7     7.0    181 
 Lily Lake                9156    4.6     4.5    102     6.8     7.1     96 
 Monte Cristo             8960    9.3     8.5    109    12.7    10.0    127 
 Salt River Summit        7760    4.5     3.7    122    10.4     6.2    168 
                                                -----                  -----
                Basin Index (%)                  127                    135 

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


 -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.