Home
Interactive Maps
WY Weather
WY Climate
Drought
Data/Products
CoCoRaHS
Library
Articles & Publications
Education & Outreach
Site Map
Cooperative Projects
Water Links
Contact Us

Subscribe to our mailing list

Water Resources Data System
Dept 3943
1000 E. University Ave.
Laramie, WY 82071

wrds@uwyo.edu
Ph (307) 766-6651
Fax (307) 766-3785


Share this page
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: DECEMBER 21 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    9.5     5.9    161    16.7     8.6    194 
 Black Bear               8170   14.0    14.4     97    23.5    15.3    154 
 Blind Bull Sum           8650   12.9     7.8    165    14.4     8.0    180 
 Cottonwood Creek         7670    8.8     7.1    124    15.8     9.6    165 
 East Rim Divide          7930    5.2     3.6    144     8.4     4.7    179 
 Grand Targhee            9260   21.7    14.5    150    21.0    12.8    164 
 Granite Creek            6770    8.1     4.8    169    14.5     7.9    184 
 Grassy Lake              7265   13.5    10.2    132    25.4    14.2    179 
 Gros Ventre Summit       8750    5.4     4.9    110     9.8     5.3    185 
 Gunsight Pass            9820    6.3     4.5    140    10.6     5.4    196 
 Lewis Lake Divide        7850   11.4    10.4    110    23.0    14.2    162 
 Phillips Bench           8200    9.4     8.8    107    18.5    10.7    173 
 Salt River Summit        7760    4.7     3.8    124    10.7     6.3    170 
 Snake River Station      6920    9.0     5.3    170    17.7     9.4    188 
 Spring Creek Divide      9000   11.0     8.2    134    16.4     9.3    176 
 Thumb Divide             7980    5.8     5.1    114    11.9     7.5    159 
 Togwotee Pass            9580   12.6     9.5    133    16.3    10.0    163 
 Two Ocean Plateau        9240   17.0    10.8    157    18.4    11.1    166 
 Willow Creek             8380   10.2     9.0    113    20.7    13.4    154 
 Younts Peak              8350    7.3     5.8    126    12.0     6.6    182 
                                                -----                  -----
                Basin Index (%)                  132                    171 
 

MADISON-GALLATIN

 Black Bear               8170   14.0    14.4     97    23.5    15.3    154 
 Canyon                   7870    5.9     4.4    134    12.0     6.8    176 
 Madison Plateau          7750    7.6     8.7     87    17.6    10.5    168 
 West Yellowstone         6700    4.4     3.7    119    11.7     5.9    198 
 Whiskey Creek            6800    4.8     5.4     89    12.5     8.4    149 
                                                -----                  -----
                Basin Index (%)                  100                    165 
 

YELLOWSTONE

 Beartooth Lake           9360   11.3     8.6    131     5.9     7.9     75 
 Burnt Mtn                5880    3.0     1.8    167     6.8     6.2    110 
 Canyon                   7870    5.9     4.4    134    12.0     6.8    176 
 Cole Creek               7850    4.7     5.7     82     4.7     6.0     78 
 Evening Star             9200   13.3     9.5    140    19.4    11.5    169 
 Fisher Creek             9100   12.7    12.9     98    17.9    12.9    139 
 Northeast Entrance       7350    4.2     2.9    145     9.5     5.4    176 
 Parker Peak              9400   11.8     8.4    140    14.7     7.6    193 
 Sylvan Lake              8420    8.9     7.9    113    19.2     9.8    196 
 Thumb Divide             7980    5.8     5.1    114    11.9     7.5    159 
 Two Ocean Plateau        9240   17.0    10.8    157    18.4    11.1    166 
 White Mill               8700   10.5     8.6    122    14.0     9.8    143 
 Wolverine                7650     -M     3.8       *     -M     5.5       *
                                                -----                  -----
                Basin Index (%)                  126                    151 
 

WIND RIVER

 Burroughs Creek          8750    7.6      -M       *   10.1      -M       *
 Castle Creek             8400    4.3      -M       *    6.4      -M       *
 Cold Springs             9630    3.7     2.8    132     6.2     4.5    138 
 Deer Park                9700    7.8     5.2    150    11.8     7.6    155 
 Hobbs Park              10100    7.3     6.0    122     8.3     5.6    148 
 Kirwin                   9550    6.4     4.1    156     9.3     5.0    186 
 Little Warm              9370    3.7     3.9     95     8.4     5.4    156 
 Owl Creek                8975    2.3     2.3    100     3.7     2.6    142 
 South Pass               9040    7.8     5.6    139     8.6     7.3    118 
 St. Lawrence Alt         8620    1.8     2.5     72     5.3     3.9    136 
 Togwotee Pass            9580   12.6     9.5    133    16.3    10.0    163 
 Townsend Creek           8700    3.3     3.4     97     6.3     5.3    119 
                                                -----                  -----
                Basin Index (%)                  125                    147 
 

BIGHORN BASIN

 Bald Mtn.                9380    9.2     7.2    128     8.3     7.0    119 
 Bear Trap Meadow         8200    1.5     2.3     65     3.6     3.9     92 
 Bone Springs Div         9350    6.4     6.5     98     7.4     6.3    117 
 Grave Springs            8550    2.4     2.7     89     4.0     4.5     89 
 Kirwin                   9550    6.4     4.1    156     9.3     5.0    186 
 Marquette                8760    3.5      -M       *    6.5      -M       *
 Middle Powder            7760    2.9     4.2     69     3.9     5.6     70 
 Owl Creek                8975    2.3     2.3    100     3.7     2.6    142 
 Powder River Pass        9480    1.6     3.9     41     4.8     5.2     92 
 Shell Creek              9580    7.0     6.4    109     6.2     5.9    105 
 Timber Creek             7950    2.7     1.9    142     4.0     3.7    108 
                                                -----                  -----
                Basin Index (%)                  102                    111 
 

SHOSHONE RIVER

 Blackwater               9780   14.8     9.3    159    18.1     8.8    206 
 Evening Star             9200   13.3     9.5    140    19.4    11.5    169 
 Marquette                8760    3.5      -M       *    6.5      -M       *
 Sylvan Road              7120    6.5     4.4    148    16.0     8.0    200 
 Younts Peak              8350    7.3     5.8    126    12.0     6.6    182 
                                                -----                  -----
                Basin Index (%)                  144                    188 
 

POWDER RIVER

 Bear Trap Meadow         8200    1.5     2.3     65     3.6     3.9     92 
 Cloud Peak Reservoir     9860    3.7     5.2     71     6.0     5.7    105 
 Grave Springs            8550    2.4     2.7     89     4.0     4.5     89 
 Hansen Sawmill           8360    2.6     2.5    104     4.2     3.7    114 
 Middle Powder            7760    2.9     4.2     69     3.9     5.6     70 
 Powder River Pass        9480    1.6     3.9     41     4.8     5.2     92 
 Soldier Park             8720    3.1      -M       *    4.8      -M       *
                                                -----                  -----
                Basin Index (%)                   71                     93 
 

TONGUE RIVER

 Big Goose                7990    3.3     3.2    103     4.4     4.8     92 
 Bone Springs Div         9350    6.4     6.5     98     7.4     6.3    117 
 Burgess Junction         7880    3.4     4.0     85     5.2     5.3     98 
 Dome Lake                8880    3.6     4.6     78     6.1     6.1    100 
 Little Goose             8870    3.7      -M       *    5.7      -M       *
 Sucker Creek             8880    4.2     4.3     98     5.3     6.0     88 
 Tie Creek                6870    2.7     1.3    208     5.6     5.0    112 
                                                -----                  -----
                Basin Index (%)                   99                    101 
 

BELLE FOURCHE

 Cole Canyon              5910    2.3     1.0    230     3.5     4.2     83 
                                                -----                  -----
                Basin Index (%)                  230                     83 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.0     2.3    130     4.3     5.3     81 
 North Rapid Creek        6130    2.8     2.5    112     3.2     4.5     71 
                                                -----                  -----
                Basin Index (%)                  121                     77 
 

UPPER N. PLATTE

 Arapaho Ridge           10960    9.3     8.1    115    11.2     9.6    117 
 Blackhall Mtn            9820   10.8      -M       *   13.1      -M       *
 Columbine                9160    8.7     7.5    116    11.3    10.0    113 
 Divide Peak              8880    5.7     6.9     83     8.3     9.0     92 
 Joe Wright              10120    6.5     8.5     76    11.3    10.8    105 
 Laprele Creek            8375    3.8     3.2    119     4.1     5.2     79 
 Med Bow                 10500   13.6      -M       *   14.3      -M       *
 North French Creek      10130    8.4    10.1     83    10.4    10.5     99 
 Never Summer            10280    8.0     7.4    108     8.3      -M       *
 Old Battle              10000   10.2    11.1     92    11.6    14.2     82 
 Rawah                    9020    4.7     3.8    124     7.4     6.6    112 
 Sage Creek Basin         7850    4.2     4.6     91     5.5     6.2     89 
 Sand Lake               10050    9.5     9.9     96     9.6     9.9     97 
 South Brush Creek        8440    3.2     4.1     78     4.9     6.4     77 
 Tower                   10500   12.7    17.4     73    16.2    16.2    100 
 Webber Springs           9250    7.9     8.3     95    11.4    10.8    106 
 Willow Creek Pass        9540    6.5     4.8    135     7.7     5.8    133 
 Zirkel                   9340   10.4     7.9    132    14.2    11.9    119 
                                                -----                  -----
                Basin Index (%)                   97                    101 
 

SWEETWATER

 Deer Park                9700    7.8     5.2    150    11.8     7.6    155 
 Larsen Creek             9000    6.0     4.0    150    10.1      -M       *
 South Pass               9040    7.8     5.6    139     8.6     7.3    118 
                                                -----                  -----
                Basin Index (%)                  146                    137 
 

LOWER N. PLATTE

 Casper Mtn.              7900    4.0     5.1     78     4.8     6.7     72 
 Laprele Creek            8375    3.8     3.2    119     4.1     5.2     79 
 Reno Hill                8400     -M     5.1       *     -M     6.3       *
 Windy Peak               7900    3.2     2.7    119     4.1     4.6     89 
                                                -----                  -----
                Basin Index (%)                  100                     79 
 

LARAMIE RIVER

 Brooklyn Lake           10240    6.9     7.0     99     7.5     8.0     94 
 Cinnabar Park            9574    6.4     7.6     84     9.1    10.0     91 
 Crow Creek               8330    2.1     3.8     55     3.8     4.8     79 
 Deadman Hill            10220    7.0     6.2    113     7.4     6.9    107 
 Rawah                    9020    4.7     3.8    124     7.4     6.6    112 
 Roach                    9700    5.0     5.7     88     6.7     7.8     86 
                                                -----                  -----
                Basin Index (%)                   94                     95 
 

S. PLATTE

 Black Mountain           8920    3.6      -M       *    5.2      -M       *
 Crow Creek               8330    2.1     3.8     55     3.8     4.8     79 
 Deadman Hill            10220    7.0     6.2    113     7.4     6.9    107 
                                                -----                  -----
                Basin Index (%)                   91                     96 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.2     3.1    103     6.3     6.2    102 
 Divide Peak              8880    5.7     6.9     83     8.3     9.0     92 
 Elk River                8700    7.2     5.4    133     8.4     7.8    108 
 Little Snake River       8915    9.9     6.8    146    14.9    12.8    116 
 Old Battle              10000   10.2    11.1     92    11.6    14.2     82 
 Sage Creek Basin         7850    4.2     4.6     91     5.5     6.2     89 
 Sandstone RS             8150    4.4     3.9    113     5.3     7.5     71 
 Whiskey Park             8950    8.2     8.1    101    11.4    10.5    109 
                                                -----                  -----
                Basin Index (%)                  106                     97 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    7.5     4.7    160    10.2     5.4    189 
 Blind Bull Sum           8650   12.9     7.8    165    14.4     8.0    180 
 East Rim Divide          7930    5.2     3.6    144     8.4     4.7    179 
 Elkhart Park G.S.        9400    4.9     4.5    109    10.1     5.5    184 
 Gros Ventre Summit       8750    5.4     4.9    110     9.8     5.3    185 
 Gunsight Pass            9820    6.3     4.5    140    10.6     5.4    196 
 Kendall R.S.             7740    7.0     4.0    175    11.3     5.5    205 
 Loomis Park              8240    8.1     5.2    156    13.4     6.8    197 
 New Fork Lake            8340    5.4     3.6    150     6.4     4.4    145 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    5.3     4.3    123    10.6     5.6    189 
 Spring Creek Divide      9000   11.0     8.2    134    16.4     9.3    176 
 Triple Peak              8500   12.8     7.2    178    17.7     9.5    186 
                                                -----                  -----
                Basin Index (%)                  147                    185 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    4.2      -M       *    5.8      -M       *
 Buck Pasture             9700    5.8      -M       *    8.5      -M       *
 EF Blacks Fork GS        9360    5.4      -M       *    5.8      -M       *
 Hams Fork                7840    4.6     3.6    128     8.3     4.5    184 
 Hewinta                  9519    3.9     3.2    122     6.3     5.9    107 
 Hickerson Park           9145    3.5     2.2    159     4.0     4.5     89 
 Hole-in-Rock             9150    2.4     2.5     96     4.4     4.2    105 
 Indian Creek             9425   10.4     8.7    120    14.5     8.4    173 
 Kelley R.S.              8180    7.3     5.0    146    12.8     7.2    178 
 Spirit Lk               10235    4.3      -M       *    6.8      -M       *
 Steel Creek Park        10200    6.0     5.6    107     7.8     6.7    116 
                                                -----                  -----
                Basin Index (%)                  124                    140 
 

UPPER BEAR RIVER

 Bear River RS            8777    4.1      -M       *    6.1      -M       *
 Bug Lake                 7950    9.0     5.5    164    10.3     7.8    132 
 Burts Miller Ranch       8000    2.4      -M       *    3.4      -M       *
 Chalk Creek #1           8993    9.7     9.0    108    11.9    10.2    117 
 Hayden Fork              9212    6.8     4.5    151    10.8     8.3    130 
 Kelley R.S.              8180    7.3     5.0    146    12.8     7.2    178 
 Lily Lake                9156    4.6     4.5    102     6.9     7.2     96 
 Monte Cristo             8960    9.3     8.7    107    12.8    10.1    127 
 Salt River Summit        7760    4.7     3.8    124    10.7     6.3    170 
                                                -----                  -----
                Basin Index (%)                  125                    133 

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


 -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.